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  • Extending Enums, Overkill?

    - by CkH
    I have an object that needs to be serialized to an EDI format. For this example we'll say it's a car. A car might not be the best example b/c options change over time, but for the real object the Enums will never change. I have many Enums like the following with custom attributes applied. public enum RoofStyle { [DisplayText("Glass Top")] [StringValue("GTR")] Glass, [DisplayText("Convertible Soft Top")] [StringValue("CST")] ConvertibleSoft, [DisplayText("Hard Top")] [StringValue("HT ")] HardTop, [DisplayText("Targa Top")] [StringValue("TT ")] Targa, } The Attributes are accessed via Extension methods: public static string GetStringValue(this Enum value) { // Get the type Type type = value.GetType(); // Get fieldinfo for this type FieldInfo fieldInfo = type.GetField(value.ToString()); // Get the stringvalue attributes StringValueAttribute[] attribs = fieldInfo.GetCustomAttributes( typeof(StringValueAttribute), false) as StringValueAttribute[]; // Return the first if there was a match. return attribs.Length > 0 ? attribs[0].StringValue : null; } public static string GetDisplayText(this Enum value) { // Get the type Type type = value.GetType(); // Get fieldinfo for this type FieldInfo fieldInfo = type.GetField(value.ToString()); // Get the DisplayText attributes DisplayTextAttribute[] attribs = fieldInfo.GetCustomAttributes( typeof(DisplayTextAttribute), false) as DisplayTextAttribute[]; // Return the first if there was a match. return attribs.Length > 0 ? attribs[0].DisplayText : value.ToString(); } There is a custom EDI serializer that serializes based on the StringValue attributes like so: StringBuilder sb = new StringBuilder(); sb.Append(car.RoofStyle.GetStringValue()); sb.Append(car.TireSize.GetStringValue()); sb.Append(car.Model.GetStringValue()); ... There is another method that can get Enum Value from StringValue for Deserialization: car.RoofStyle = Enums.GetCode<RoofStyle>(EDIString.Substring(4, 3)) Defined as: public static class Enums { public static T GetCode<T>(string value) { foreach (object o in System.Enum.GetValues(typeof(T))) { if (((Enum)o).GetStringValue() == value.ToUpper()) return (T)o; } throw new ArgumentException("No code exists for type " + typeof(T).ToString() + " corresponding to value of " + value); } } And Finally, for the UI, the GetDisplayText() is used to show the user friendly text. What do you think? Overkill? Is there a better way? or Goldie Locks (just right)? Just want to get feedback before I intergrate it into my personal framework permanently. Thanks.

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  • Gratuitous use of System.Runtime.Serialization attributes?

    - by rasx
    Is there any cost/drawback (apart from typing too much) to adorning a class with System.Runtime.Serialization attributes (like [DataContract]) such that it can be used locally as a direct reference to a desktop Client project or as a type for a WCF service? The goal here is to write a data-tier class that can be used in both rich client (WPF) and Web scenarios. My data classes will be in a project that is separate from Client and WCF (*.svc code-behind) code. Is this a valid attempt to reuse code?

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  • how to create a DataAccessLayer ?

    - by NIGHIL DAS
    hi, i am creating a database applicatin in .Net. I am using a DataAccessLayer for communicating .net objects with database but i am not sure that this class is correct or not Can anyone cross check it and rectify any mistakes namespace IDataaccess { #region Collection Class public class SPParamCollection : List<SPParams> { } public class SPParamReturnCollection : List<SPParams> { } #endregion #region struct public struct SPParams { public string Name { get; set; } public object Value { get; set; } public ParameterDirection ParamDirection { get; set; } public SqlDbType Type { get; set; } public int Size { get; set; } public string TypeName { get; set; } // public string datatype; } #endregion /// <summary> /// Interface DataAccess Layer implimentation New version /// </summary> public interface IDataAccess { DataTable getDataUsingSP(string spName); DataTable getDataUsingSP(string spName, SPParamCollection spParamCollection); DataSet getDataSetUsingSP(string spName); DataSet getDataSetUsingSP(string spName, SPParamCollection spParamCollection); SqlDataReader getDataReaderUsingSP(string spName); SqlDataReader getDataReaderUsingSP(string spName, SPParamCollection spParamCollection); int executeSP(string spName); int executeSP(string spName, SPParamCollection spParamCollection, bool addExtraParmas); int executeSP(string spName, SPParamCollection spParamCollection); DataTable getDataUsingSqlQuery(string strSqlQuery); int executeSqlQuery(string strSqlQuery); SPParamReturnCollection executeSPReturnParam(string spName, SPParamReturnCollection spParamReturnCollection); SPParamReturnCollection executeSPReturnParam(string spName, SPParamCollection spParamCollection, SPParamReturnCollection spParamReturnCollection); SPParamReturnCollection executeSPReturnParam(string spName, SPParamCollection spParamCollection, SPParamReturnCollection spParamReturnCollection, bool addExtraParmas); int executeSPReturnParam(string spName, SPParamCollection spParamCollection, ref SPParamReturnCollection spParamReturnCollection); object getScalarUsingSP(string spName); object getScalarUsingSP(string spName, SPParamCollection spParamCollection); } } using IDataaccess; namespace Dataaccess { /// <summary> /// Class DataAccess Layer implimentation New version /// </summary> public class DataAccess : IDataaccess.IDataAccess { #region Public variables static string Strcon; DataSet dts = new DataSet(); public DataAccess() { Strcon = sReadConnectionString(); } private string sReadConnectionString() { try { //dts.ReadXml("C:\\cnn.config"); //Strcon = dts.Tables[0].Rows[0][0].ToString(); //System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); //Strcon = config.ConnectionStrings.ConnectionStrings["connectionString"].ConnectionString; // Add an Application Setting. //Strcon = "Data Source=192.168.50.103;Initial Catalog=erpDB;User ID=ipixerp1;Password=NogoXVc3"; Strcon = System.Configuration.ConfigurationManager.AppSettings["connection"]; //Strcon = System.Configuration.ConfigurationSettings.AppSettings[0].ToString(); } catch (Exception) { } return Strcon; } public SqlConnection connection; public SqlCommand cmd; public SqlDataAdapter adpt; public DataTable dt; public int intresult; public SqlDataReader sqdr; #endregion #region Public Methods public DataTable getDataUsingSP(string spName) { return getDataUsingSP(spName, null); } public DataTable getDataUsingSP(string spName, SPParamCollection spParamCollection) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); } cmd.CommandType = CommandType.StoredProcedure; cmd.CommandTimeout = 60; adpt = new SqlDataAdapter(cmd); dt = new DataTable(); adpt.Fill(dt); return (dt); } } } finally { connection.Close(); } } public DataSet getDataSetUsingSP(string spName) { return getDataSetUsingSP(spName, null); } public DataSet getDataSetUsingSP(string spName, SPParamCollection spParamCollection) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); } cmd.CommandType = CommandType.StoredProcedure; cmd.CommandTimeout = 60; adpt = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); adpt.Fill(ds); return ds; } } } finally { connection.Close(); } } public SqlDataReader getDataReaderUsingSP(string spName) { return getDataReaderUsingSP(spName, null); } public SqlDataReader getDataReaderUsingSP(string spName, SPParamCollection spParamCollection) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); } cmd.CommandType = CommandType.StoredProcedure; cmd.CommandTimeout = 60; sqdr = cmd.ExecuteReader(); return (sqdr); } } } finally { connection.Close(); } } public int executeSP(string spName) { return executeSP(spName, null); } public int executeSP(string spName, SPParamCollection spParamCollection, bool addExtraParmas) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { SqlParameter par = new SqlParameter(spParamCollection[count].Name, spParamCollection[count].Value); if (addExtraParmas) { par.TypeName = spParamCollection[count].TypeName; par.SqlDbType = spParamCollection[count].Type; } cmd.Parameters.Add(par); } cmd.CommandType = CommandType.StoredProcedure; cmd.CommandTimeout = 60; return (cmd.ExecuteNonQuery()); } } } finally { connection.Close(); } } public int executeSP(string spName, SPParamCollection spParamCollection) { return executeSP(spName, spParamCollection, false); } public DataTable getDataUsingSqlQuery(string strSqlQuery) { try { using (connection = new SqlConnection(Strcon)) connection.Open(); { using (cmd = new SqlCommand(strSqlQuery, connection)) { cmd.CommandType = CommandType.Text; cmd.CommandTimeout = 60; adpt = new SqlDataAdapter(cmd); dt = new DataTable(); adpt.Fill(dt); return (dt); } } } finally { connection.Close(); } } public int executeSqlQuery(string strSqlQuery) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(strSqlQuery, connection)) { cmd.CommandType = CommandType.Text; cmd.CommandTimeout = 60; intresult = cmd.ExecuteNonQuery(); return (intresult); } } } finally { connection.Close(); } } public SPParamReturnCollection executeSPReturnParam(string spName, SPParamReturnCollection spParamReturnCollection) { return executeSPReturnParam(spName, null, spParamReturnCollection); } public int executeSPReturnParam() { return 0; } public int executeSPReturnParam(string spName, SPParamCollection spParamCollection, ref SPParamReturnCollection spParamReturnCollection) { try { SPParamReturnCollection spParamReturned = new SPParamReturnCollection(); using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); } cmd.CommandType = CommandType.StoredProcedure; foreach (SPParams paramReturn in spParamReturnCollection) { SqlParameter _parmReturn = new SqlParameter(paramReturn.Name, paramReturn.Size); _parmReturn.Direction = paramReturn.ParamDirection; if (paramReturn.Size > 0) _parmReturn.Size = paramReturn.Size; else _parmReturn.Size = 32; _parmReturn.SqlDbType = paramReturn.Type; cmd.Parameters.Add(_parmReturn); } cmd.CommandTimeout = 60; intresult = cmd.ExecuteNonQuery(); connection.Close(); //for (int i = 0; i < spParamReturnCollection.Count; i++) //{ // spParamReturned.Add(new SPParams // { // Name = spParamReturnCollection[i].Name, // Value = cmd.Parameters[spParamReturnCollection[i].Name].Value // }); //} } } return intresult; } finally { connection.Close(); } } public SPParamReturnCollection executeSPReturnParam(string spName, SPParamCollection spParamCollection, SPParamReturnCollection spParamReturnCollection) { return executeSPReturnParam(spName, spParamCollection, spParamReturnCollection, false); } public SPParamReturnCollection executeSPReturnParam(string spName, SPParamCollection spParamCollection, SPParamReturnCollection spParamReturnCollection, bool addExtraParmas) { try { SPParamReturnCollection spParamReturned = new SPParamReturnCollection(); using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { //cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); SqlParameter par = new SqlParameter(spParamCollection[count].Name, spParamCollection[count].Value); if (addExtraParmas) { par.TypeName = spParamCollection[count].TypeName; par.SqlDbType = spParamCollection[count].Type; } cmd.Parameters.Add(par); } cmd.CommandType = CommandType.StoredProcedure; foreach (SPParams paramReturn in spParamReturnCollection) { SqlParameter _parmReturn = new SqlParameter(paramReturn.Name, paramReturn.Value); _parmReturn.Direction = paramReturn.ParamDirection; if (paramReturn.Size > 0) _parmReturn.Size = paramReturn.Size; else _parmReturn.Size = 32; _parmReturn.SqlDbType = paramReturn.Type; cmd.Parameters.Add(_parmReturn); } cmd.CommandTimeout = 60; cmd.ExecuteNonQuery(); connection.Close(); for (int i = 0; i < spParamReturnCollection.Count; i++) { spParamReturned.Add(new SPParams { Name = spParamReturnCollection[i].Name, Value = cmd.Parameters[spParamReturnCollection[i].Name].Value }); } } } return spParamReturned; } catch (Exception ex) { return null; } finally { connection.Close(); } } public object getScalarUsingSP(string spName) { return getScalarUsingSP(spName, null); } public object getScalarUsingSP(string spName, SPParamCollection spParamCollection) { try { using (connection = new SqlConnection(Strcon)) { connection.Open(); using (cmd = new SqlCommand(spName, connection)) { int count, param = 0; if (spParamCollection == null) { param = -1; } else { param = spParamCollection.Count; } for (count = 0; count < param; count++) { cmd.Parameters.AddWithValue(spParamCollection[count].Name, spParamCollection[count].Value); cmd.CommandTimeout = 60; } cmd.CommandType = CommandType.StoredProcedure; return cmd.ExecuteScalar(); } } } finally { connection.Close(); cmd.Dispose(); } } #endregion } }

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  • Targeting Android with Scala 2.8 Trunk builds

    - by Kevin Wright
    The definitive reference for using Scala on android seems to be here: http://www.scala-lang.org/node/160 Unfortunately, all the references on using scala with android are based around Scala 2.7 and refer to a custom build android-library.jar, with a couple of cryptic references suggesting that this custom build isn't needed for later versions of android (I'm using 2.1 / API v7) So... What are the steps needed to use Scala 2.8 in an android project? Preferably using eclipse and the Android tools that Google supplies for that IDE.

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  • ASP MVC: Custom Validation Attribute

    - by user323395
    I'm trying to write my own Custom Validation attribute but i'm having some problems. The attribute i'm trying to write is that when a user logs in, the password will be compared against the confirmation password. namespace EventCompanion.Data.Attributes { public class ComparePassword : ValidationAttribute { public string PasswordToCompareWith { get; set; } public override bool IsValid(object value) { if (PasswordToCompareWith == (string)value) { return true; } return false; } } Now my problem is when i'm trying to set the attribute like this in the model file: [Required] [ComparePassword(PasswordToCompareWith=ConfirmPassword)] public string Password { get; set; } [Required] public string ConfirmPassword { get; set; } } I get the following error: Error 1 An object reference is required for the non-static field, method, or property 'Project.Data.Models.GebruikerRegistreerModel.ConfirmPassword.get' It seems that VS is not accepting the confirmpassword in the "PasswordToCompareWith=ConfirmPassword" part Now my question: What am i doing wrong? Thanks in advance!!!

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  • PHP PDO: Fetching data as objects - properties assigned BEFORE __construct is called. Is this correc

    - by Erik
    The full question should be "Is this correct or is it some bug I can't count on?" I've been working with PDO more and in particular playing with fetching data directly into objects. While doing so I discovered this: If I fetch data directly into an object like this: $STH = $DBH->prepare('SELECT first_name, address from people WHERE 1'); $obj = $STH->fetchAll(PDO::FETCH_CLASS, 'person'); and have an object like this: class person { public $first_name; public $address; function __construct() { $this->first_name = $this->first_name . " is the name"; } } It shows me that the properties are being assigned before the __construct is being called -- because the names all have " is the name" appended. Is this some bug (in which case I can't/won't count on it) or is this The Way It Should Be. Because it's really quite a nice thing the way it works currently.

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  • app engine jpa N-way joins ?

    - by cometta
    may i know is the latest version of jgae support N-way joins? or still limit to 2-way join? reference: http://gae-java-persistence.blogspot.com/2010/03/executing-simple-joins-across-owned.html?showComment=1276491851890_AIe9_BEqp-CCn0bibiOUY8JUbbSFwFE02aF9d68baX0squIcfBnve8K3iIT3IEhPhpJxEBSZQLlz8tH-NMq1XGzOV0fAA8othN4f3zhR2B6xN0WzsTRpyEZJl2vPDonhVY38iUhJGe8Ot9URs3IjYk4HoH9LG41az7l0blTBNNnpJuyI-xl5CDJGoPLGk5jw4tLvtvsCYhq3n7XuiZwJIaBMWjHSDdy7-fB1NYszI0G4f9JRjZ5UdDM4at3o3tAhd-CYK2Af1dnG#c3679507832415682306

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  • NSFormatter problem: not getting called for the empty string

    - by Enchilada
    I have created a custom formatter for my (read-only) table column. It looks like this: - (NSString *)stringForObjectValue:(id)anObject { NSAssert([anObject isKindOfClass:[NSString class]] && anObject != nil, @"invalid object"); if ([anObject isEqualToString:@""]) return @"EMPTY"; else return [anObject stringByAppendingString:@"++"]; } Very simple. The corresponding objects are just strings, so it's an string-to-string formatter. All non-empty string objects are returned with @"++" appended to them. Empty string objects should be turned into the @"EMPTY" string. The @"++" gets appended to non-empty strings just fine. The problem is, @"EMPTY" never gets shown! My formatter is never called by Cocoa when the underlying object is the empty string. The corresponding row just keeps being empty, instead of showing my requested @"EMPTY". Any ideas?

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  • String of KML needs to be converted to java objects

    - by spartikus
    I have a string of kml coming in on a request object. I have used xjc to create the kml java objects. I am looking for an easy way to create the kml nested java objects from this string. I could parse the string and create each object in the tree by hand but wouldn't it be cool if there was a library or something that would create the java objects for me? Something like KmlType type = parseKML(mykmlStringFromTheRequest); Then type would be a Tree of kml objects. Thanks for the help all.

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  • Where is the JTree definition for eclipse's Project Explorer?

    - by Jim
    Hello, The JTree implementation / Renderer used in eclipse (see the navigation pane on the left side) is extremely good. I've checked out the eclipse source code and am looking through it, but can't seem to find the reference to the JTree used. Does anyone know which package contains the definition of this pane? Thanks!

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  • strerror_r returns trash when I manually set errno during testing

    - by Robert S. Barnes
    During testing I have a mock object which sets errno = ETIMEDOUT; The object I'm testing sees the error and calls strerror_r to get back an error string: if (ret) { if (ret == EAI_SYSTEM) { char err[128]; strerror_r(errno, err, 128); err_string.assign(err); } else { err_string.assign(gai_strerror(ret)); } return ret; } I don't understand why strerror_r is returning trash. I even tried calling strerror_r(ETIMEDOUT, err, 128) directly and still got trash. I must be missing something. It seems I'm getting the gnu version of the function not the posix one, but that shouldn't make any difference in this case.

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  • Unique_ptr compiler errors

    - by Godric Seer
    I am designing and entity-component system for a project, and C++ memory management is giving me a few issues. I just want to make sure my design is legitimate. So to start I have an Entity class which stores a vector of Components: class Entity { private: std::vector<std::unique_ptr<Component> > components; public: Entity() { }; void AddComponent(Component* component) { this -> components.push_back(std::unique_ptr<Component>(component)); } ~Entity(); }; Which if I am not mistaken means that when the destructor is called (even the default, compiler created one), the destructor for the Entity, will call ~components, which will call ~std::unique_ptr for each element in the vector, and lead to the destruction of each Component, which is what I want. The component class has virtual methods, but the important part is its constructor: Component::Component(Entity parent) { parent.addComponent(this) // I am not sure if this would work like I expect // Other things here } As long as passing this to the method works, this also does what I want. My confusion is in the factory. What I want to do is something along the lines of: std::shared_ptr<Entity> createEntity() { std::shared_ptr<Entity> entityPtr(new Entity()); new Component(*parent); // Initialize more, and other types of Components return entityPtr; } Now, I believe that this setup will leave the ownership of the Component in the hands of its Parent Entity, which is what I want. First a small question, do I need to pass the entity into the Component constructor by reference or pointer or something? If I understand C++, it would pass by value, which means it gets copied, and the copied entity would die at the end of the constructor. The second, and main question is that code based on this sample will not compile. The complete error is too large to print here, however I think I know somewhat of what is going on. The compiler's error says I can't delete an incomplete type. My Component class has a purely virtual destructor with an implementation: inline Component::~Component() { }; at the end of the header. However since the whole point is that Component is actually an interface. I know from here that a complete type is required for unique_ptr destruction. The question is, how do I work around this? For reference I am using gcc 4.4.6.

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  • Trying to update an MVC 1.0 project to MVC 2.0

    - by Cptcecil
    I'm trying to update my project to MVC 2.0 from MVC 1.0. I've removed the references for System.Web.MVC to the newer versions. I'm getting an exception from the HTTPContext which reads "CurrentNotification = 'HttpContext.Current.CurrentNotification' threw an exception of type 'System.PlatformNotSupportedException'". What other binaries do I need to update a reference to, to get my project to work again?

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  • Is Minus Zero some sort of JavaScript performance trick?

    - by James Wiseman
    Looking in the jQuery core I found the folloiwng code convention: nth: function(elem, i, match){ return match[3] - 0 === i; }, And I was really curious about the snippet match[3] - 0 Hunting around for '-0' on google isn't too productive, and a search for 'minus zero' brings back a reference to a Bob Dylan song. So, can anyone tell me. Is this some sort of performance trick, or is there a reason for doing this rather than a parseInt or parseFloat? Thanks

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  • How do I handle a JSON request returning a String in JQuery?

    - by knt
    Hi all, New to json/jQuery so sorry if this has an obvious answer. I'm doing an ajax request in jQuery that's something like: $.ajax({ url: theURL, dataType: 'jsonp', type: 'get', success: function(data) { alert("it's there"); } }); The request asks whether a given object is in a database. If it is, it returns something of the format: { "text": "duck", "canonical_name": "duck", "language": { "id": "en" }} However, if the object isn't there, it returns: Not Found As in...literally that exact string, not in any kind of json format as far as I know. Is there any way I can get my ajax to detect this? Right now it doesn't even seem to be acknowledging that it got anything back in the latter case. The json code wasn't written by me. It can possibly be fixed if this is not the correct format and there's absolutely nothing I can do from my end to work with this, but I'd really like to try to find some kind of workaround if possible. Thanks very much!

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  • Datagridview error

    - by Simon
    I have two datagridviews. So for the second one, i just copy-pasted the code from the first and changed where the difference was. But i get an error at the secod data grid when i want to view the result of my sql code. Translated in english the error show something like that there was no value given to at least one required parameter. Please help! private void button1_Click(object sender, EventArgs e) { string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=save.mdb"; try { database = new OleDbConnection(connectionString); database.Open(); date = DateTime.Now.ToShortDateString(); string queryString = "SELECT zivila.naziv,(obroki_save.skupaj_kalorij/zivila.kalorij)*100 as Kolicina_v_gramih " + "FROM (users LEFT JOIN obroki_save ON obroki_save.ID_uporabnika=users.ID)" + " LEFT JOIN zivila ON zivila.ID=obroki_save.ID_zivila " + " WHERE users.ID= " + a.ToString(); loadDataGrid(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); return; } } public void loadDataGrid(string sqlQueryString) { OleDbCommand SQLQuery = new OleDbCommand(); DataTable data = null; dataGridView1.DataSource = null; SQLQuery.Connection = null; OleDbDataAdapter dataAdapter = null; dataGridView1.Columns.Clear(); // <-- clear columns SQLQuery.CommandText = sqlQueryString; SQLQuery.Connection = database; data = new DataTable(); dataAdapter = new OleDbDataAdapter(SQLQuery); dataAdapter.Fill(data); dataGridView1.DataSource = data; dataGridView1.AllowUserToAddRows = false; dataGridView1.ReadOnly = true; dataGridView1.Columns[0].Visible = true; } private void Form8_Load(object sender, EventArgs e) { } private void button2_Click(object sender, EventArgs e) { string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=save.mdb"; try { database = new OleDbConnection(connectionString); database.Open(); date = DateTime.Now.ToShortDateString(); string queryString = "SELECT skupaj_kalorij " + "FROM obroki_save " + " WHERE users.ID= " + a.ToString(); loadDataGrid2(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); return; } } public void loadDataGrid2(string sqlQueryString) { OleDbCommand SQLQuery = new OleDbCommand(); DataTable data = null; dataGridView2.DataSource = null; SQLQuery.Connection = null; OleDbDataAdapter dataAdapter = null; dataGridView2.Columns.Clear(); // <-- clear columns SQLQuery.CommandText = sqlQueryString; SQLQuery.Connection = database; data = new DataTable(); dataAdapter = new OleDbDataAdapter(SQLQuery); dataAdapter.Fill(data); dataGridView2.DataSource = data; dataGridView2.AllowUserToAddRows = false; dataGridView2.ReadOnly = true; dataGridView2.Columns[0].Visible = true; }

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  • Can I create an ASP.NET MVC 2 project with multiple areas without referencing each Child in the pare

    - by No Refunds No Returns
    This is a follow-up question to my original query: http://stackoverflow.com/questions/1791605/how-can-i-use-multiple-projects-to-separate-a-large-asp-net-mvc-site-into-departm Now that I have this working, is there a way to still have multiple project but not have to reference each child area from the parent project? Ideally I'd like to be able to have multiple, separate and distinct projects that only come together on the production/test machines. I should be able to build and test each "area" separately.

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  • Querying and ordering results of a database in grails using transient fields

    - by Azder
    I'm trying to display paged data out of a grails domain object. For example: I have a domain object Employee with the properties firstName and lastName which are transient, and when invoking their setter/getter methods they encrypt/decrypt the data. The data is saved in the database in encrypted binary format, thus not sortable by those fields. And yet again, not sortable by transient ones either, as noted in: http://www.grails.org/GSP+Tag+-+sortableColumn . So now I'm trying to find a way to use the transients in a way similar to: Employee.withCriteria( max: 10, offset: 30 ){ order 'lastName', 'asc' order 'firstName', 'asc' } The class is: class Employee { byte[] encryptedFirstName byte[] encryptedLastName static transients = [ 'firstName', 'lastName' ] String getFirstName(){ decrypt("encryptedFirstName") } void setFirstName(String item){ encrypt("encryptedFirstName",item) } String getLastName(){ decrypt("encryptedLastName") } void setLastName(String item){ encrypt("encryptedLastName",item) } }

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