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  • Replace UpdatePanel with JQuery

    - by Daud
    I'm using UpdatePanel to asynchronously call a button click event in a page that calls a method in another class which writes out an XML file on the output. Is there a way to do this with JQuery instead of UpdatePanel?

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  • Exporting data from a gridview to different excel worksheets

    - by Alex
    I am binding data from a dataset to a grid and exporting data from the grid to an excel.if the the number of items in the grid is greater than 50000,an error message is displayed. So i want to split the data and display it in different worksheets in excel.(Am working in a web application) using this code for exporting to excel gvExcel.DataSource = DTS; gvExcel.DataBind(); Response.AddHeader("content-disposition", "attachment; filename= filename.xls"); Response.ContentType = "application/excel"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); gvExcel.RenderControl(htw); // Style is added dynamically Response.Write(style); Response.Write(sw.ToString()); Response.End(); Can anyone help me on this??

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  • CompareValidator issue on Firefox

    - by costin
    Hi, I need to validate a date in a web forms application. For this I use a CompareValidator with Operator="DataTypeCheck" Type="Date" The problem is that this Validator doesn't work properly on Firefox with 2 digit years. ( javascript error: m[2] is undefined) With a 4 digits year it's working properly. This problem is described also here: https://connect.microsoft.com/VisualStudio/feedback/details/355573/comparevalidator-client-side-bug-two-digit-year-in-mozilla-based-browsers-throws-js-exception Does anyone know a nice workaround for this? Thanks

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  • asp.mvc model design

    - by Radu D
    Hi, I am pretty new to MVC and I am looking for a way to design my models. I have the MVC web site project and another class library that takes care of data access and constructing the business objects. If I have in that assembly a class named Project that is a business object and I need to display all projects in a view ... should I make another model class Project? In this case the classes will be identical. Do I gain something from doing a new model class? I don't like having in views references to objects from another dll ... but i don't like duplicating the code neither. Did you encounter the same problem?

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  • Using a Cross Thread Boolean to Abort Thread

    - by Jon
    Possible Duplicate: Can a C# thread really cache a value and ignore changes to that value on other threads? Lets say we have this code: bool KeepGoing = true; DataInThread = new Thread(new ThreadStart(DataInThreadMethod)); DataInThread.Start(); //bla bla time goes on KeepGoing = false; private void DataInThreadMethod() { while (KeepGoing) { //Do stuff } } } Now the idea is that using the boolean is a safe way to terminate the thread however because that boolean exists on the calling thread does that cause any issue? That boolean is only used on the calling thread to stop the thread so its not like its being used elsewhere

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  • Events raised by BackgroundWorker not executed on expected thread

    - by Topdown
    A winforms dialog is using BackgroundWorker to perform some asynchronous operations with significant success. On occasion, the async process being run by the background worker will need to raise events to the winforms app for user response (a message that asks the user if they wish to cancel), the response of which captured in an CancelEventArgs type of the event. Being an implementation of threading, I would have expected the RaiseEvent of the worker to fire, and then the worker would continue, hence requiring me to pause the worker until the response is received. Instead however, the worker is held to wait for the code executed by the raise event to complete. It seems like method I am calling via the event call is actually on the worker thread used by the background worker, and I am surprised, since I expected to see it on the Main Thread which is where the mainform is running. Also surprisingly, there are no cross thread exceptions thrown. Can somebody please explain why this is not as I expect?

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  • How Do I insert Data in a table From the Model MVC?

    - by user54197
    I have data coming into my Model, how do I setup to insert the data in a table? public string Name { get; set; } public string Address { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } public Info() { using (SqlConnection connect = new SqlConnection(connections)) { string query = "Insert Into Personnel_Data (Name, StreetAddress, City, State, Zip, HomePhone, WorkPhone)" + "Values('" + Name + "','" + Address + "','" + City + "','" + State + "','" + Zip + "','" + ContactHPhone + "','" + ContactWPhone + "')"; SqlCommand command = new SqlCommand(query, connect); connect.Open(); command.ExecuteNonQuery(); } } The Name, Address, City, and so on is null when the query is being run. How do I set this up?

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  • Howto write a class where a property can be accessed without naming it.

    - by SchlaWiener
    I have a (dump) question regarding VB/C# I often use third party classes where I can access a child object with only specifying the id or key. Example: Instead of writing: DataRow row = GetAPopulatedDataRowSomeWhere(); Object result = row.Items[1]; // DataRow has no Items property Object result = row.Items["colName"]; // Also not possible I use this code to access the members: DataRow row = GetAPopulatedDataRowSomeWhere(); Object result = row[1]; Object result = row["colName"]; Can someone tell me how a class has to look like to support this syntax? My own class has a Dictionary that I want to access this way. MyClass["key"]; // <- that's what I want MyClass.SubItems["key"]; // <- that's how I use it now

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  • Using MembershipCreateStatus in MVC

    - by Jemes
    How can I use the MembershipCreateStatus in my controller below to identify errors? My controller below creates a new user but I would like to catch any errors from CreateStatus and add the error to my modelstate. [HttpPost] public ActionResult CreateUser(user UserToCreate) { if (ModelState.IsValid) { // TODO: If the UserToCreate object is Valid we'll //Eventually want to save it in a database Membership.CreateUser(UserToCreate.Username, UserToCreate.Password, UserToCreate.Email); return Redirect("/"); } //Invalid - redisplay form with errors return View(UserToCreate); }

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  • Dynamically creating objects at runtime that inherit from a base class

    - by Homeliss
    I am writing a game editor, and have a lot of different "tool" objects. They all inherit from BTool and have the same constructor. I would like to dynamically populate a toolbox at runtime with buttons that correspond to these tools, and when clicked have them create an instance of that tool and set it as the current tool. Is this possible, and if so will it be better/easier than creating those buttons by hand?

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  • AsyncPostBackTrigger Just flashing/flicking the UpdatePanel but not updating it

    - by Pankaj
    I am trying UpdatePanel & AsyncPostBackTrigger on master pages through find control method but problem is when I click on button (UpdateButton) It just flash/flick (No Postback) the UpdatePanle but still it don't update or refresh the gridview (images) inside the updatePanel. I have placed script Manger on the master page & an AJAX Update panel in a ContentPlaceHolder in the child page. Also, in another ContentPlaceholder there is an asp button (outside of the UpdatePanel). I want to refresh/reload the AJAX UpdatePanel with this asp button. Thanks for suggestions. Child Page Code :- protected void Page_Load(object sender, EventArgs e) { ScriptManager ScriptManager1 = (ScriptManager)Master.FindControl("ScriptManager1"); ContentPlaceHolder cph = (ContentPlaceHolder)Master.FindControl("cp_Button"); Button btnRefresh = (Button)cph.FindControl("btnRefresh"); ScriptManager1.RegisterAsyncPostBackControl(btnRefresh); } protected void btnRefresh_Click(object sender, EventArgs e) { UpdatePanel1.Update(); } <%@ Page Title="" Language="C#" MasterPageFile="~/InnerMaster.master" AutoEventWireup="true" CodeFile="A.aspx.cs" Inherits="A" Async="true" %> <asp:Content ID="Content3" ContentPlaceHolderID="MainContent" Runat="Server"> <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server"> <ContentTemplate> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1"> <Columns> <asp:TemplateField> <ItemTemplate> <asp:Image ID="img12" runat="server" Width="650px" Height="600" ToolTip="A" ImageUrl='<%# Page.ResolveUrl(string.Format("~/Cli/{0}", Eval("image"))) %>' /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </ContentTemplate> </asp:UpdatePanel> </asp:Content> <asp:Content ID="Content4" ContentPlaceHolderID="cp_Button" Runat="Server"> <asp:Button ID ="btnRefresh" runat="server" onclick="btnRefresh_Click" Height="34" Width="110" Text="More Images" /> </asp:Content> Hi updated code :- Now on click event whole pages is refreshed. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; namespace EProxy { public class EventProxy : Control, IPostBackEventHandler { public EventProxy() { } public void RaisePostBackEvent(string eventArgument) { } public event EventHandler<EventArgs> EventProxied; protected virtual void OnEventProxy(EventArgs e) { if (this.EventProxied != null) { this.EventProxied(this, e); } } public void ProxyEvent(EventArgs e) { OnEventProxy(e); } } } On Master Page Code (btn click):- protected void btnRefresh_Click(object sender, EventArgs e) { ContentPlaceHolder cph = (ContentPlaceHolder)this.FindControl("MainContent"); EventProxy eventProxy = (EventProxy)cph.FindControl("ProxyControl") as EventProxy; eventProxy.ProxyEvent(e); } Web Config :- <pages maintainScrollPositionOnPostBack="true" enableViewStateMac="true"> <controls> <add tagPrefix="it" namespace="EProxy" assembly="App_Code"/> </controls> </pages>

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  • How does Model binding with a selectlist work?

    - by rsteckly
    Hi, I'm having problems retrieving the values of a selectlist in my form collection. I've tried making a viewmodel with an attribute with the same name as the select list. I'm honestly just realizing I REALLY don't understand how model binding works with selectlists. I've just been assuming that the following conventions apply: Name the select list the same thing as the attribute on the model you want it to bind to. Apart from that, I really don't get it. I've looked at several books on it and they're useless frankly. How does a select list work with a) form collection and b) a particular model?

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  • MVC2 IModelBinder and parsing a string to an object - How do I do it?

    - by burnt_hand
    I have an object called Time public class Time{ public int Hour {get;set;} public int Minute {get;set;} public static Time Parse(string timeString){ //reads the ToString()'s previous output and returns a Time object } override protected string ToString(){ //puts out something like 14:50 (as in 2:50PM) } } So what I want is for the automatic model binding on the Edit or Create action to set this Time instance up from a string (i.e. feed the Parse method with the string and return the result). The reason I am doing this is that I will have a DropDownList with selectable times. The value of each option will be the parser readable string. Can anyone provide an example BindModel method from the IModelBinder interface?

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  • IDENTITY_INSERT is set to off error

    - by kingrichard2005
    I have a MVC web application with a table in the model that I would like to add to. I have the primary key set along with the other data fields, but every time I try to add to the table, I get the following error: "Cannot insert explicit value for identity column in table 'TABLE_NAME' when IDENTITY_INSERT is set to OFF." I'm not sure why this problem is coming up, I have the primary key set as the identity and it is also set to auto increment in the Visual Studio table designer. Is there any way I can adjust the IDENTITY_INSERT parameter in the table designer in Visual Studio?? Or is there some other issue that might be causing this.

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  • HtmlHelper does not contain definition for "Action"

    - by ognjenb
    I use <%= Html.Action("ReadXML") % and have this error: 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'Action' and no extension method 'Action' accepting a first argument of type 'System.Web.Mvc.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) How fix it

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  • Error when passing quotes to webservice by AJAX

    - by Radu
    I'm passing data using .ajax and here are my data and contentType attributes: data: '{ "UserInput" : "' + $('#txtInput').val() + '","Options" : { "Foo1":' + bar1 + ', "Foo2":' + Bar2 + ', "Flags":"' + flags + '", "Immunity":' + immunity + '}}', contentType: 'application/json; charset=utf-8', Server side my code looks like this: <WebMethod()> _ Public Shared Function ParseData(ByVal UserInput As String, ByVal Options As Options) As String The userinput is obvious but the Options structure is like the following: Public Structure Options Dim Foo1 As Boolean Dim Foo2 As Boolean Dim Flags As String Dim Immunity As Integer End Structure Everything works fine when $('#txtInput') contains no double-quotes but if they are present I get an error (for an input of asd"): {"Message":"Invalid object passed in, \u0027:\u0027 or \u0027}\u0027 expected. (22): { \"UserInput\" : \"asd\"\",\"Options\" : { \"Foo1\":false, \"Foo2\":false, \"Flags\":\"\", \"Immunity\":0}}","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeDictionary(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"} Any idea how I can avoid this error? Also, when I pass the same input with quotes directly it works fine.

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  • T4 Controller Template to trigger View Generation

    - by DrydenMaker
    I have been using some customized MVC templates that really improve my productivity. However, I would like to take it to the next level. I generate a controller template for each table in my app. The controller has Edit, List, Details, and Delete actions. What I would like to do, is at the same time trigger the generation of the views for those actions. Does anyone have a reference or have suggestions on how this can be done?

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  • How to render an HTML attribute from a Razor view.

    - by ProfK
    I would like to use the same partial view for create, edit, and details views, to avoid duplicating the fieldset structure for an entity. Then, depending on which view renders the partial view, I would like to add a class of "read-only" to a div surrounding my fieldset and handle making the actual input fields read-only on the client, using css or jQuery, or whatever. How can I specify from my Razor view that I need this class added to the "item-details" div? <div class="item-details"> <fieldset> <legend>Product Details</legend> @Html.HiddenFor(model => model.DetailItem.ProductId) <div class="editor-label"> @Html.LabelFor(model => model.DetailItem.Name) </div> <div class="editor-field"> @Html.EditorFor(model => model.DetailItem.Name) @Html.ValidationMessageFor(model => model.DetailItem.Name) </div> <p> <input type="submit" value="Save" /> </p> </fieldset> </div>

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  • Alert on gridview edit based on permission

    - by Vicky
    I have a gridview with edit option at the start of the row. Also I maintain a seperate table called Permission where I maintain user permissions. I have three different types of permissions like Admin, Leads, Programmers. These all three will have access to the gridview. Except admin if anyone tries to edit the gridview on clicking the edit option, I need to give an alert like This row has important validation and make sure you make proper changes. When I edit, the action with happen on table called Application. The table has a column called Comments. Also the alert should happen only when they try to edit rows where the Comments column have these values in them. ManLog datas Funding Approved Exported Applications My try so far. public bool IsApplicationUser(string userName) { return CheckUser(userName); } public static bool CheckUser(string userName) { string CS = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString(); DataTable dt = new DataTable(); using (SqlConnection connection = new SqlConnection(CS)) { SqlCommand command = new SqlCommand(); command.Connection = connection; string strquery = "select * from Permissions where AppCode='Nest' and UserID = '" + userName + "'"; SqlCommand cmd = new SqlCommand(strquery, connection); SqlDataAdapter da = new SqlDataAdapter(cmd); da.Fill(dt); } if (dt.Rows.Count >= 1) return true; else return true; } protected void Details_RowCommand(object sender, GridViewCommandEventArgs e) { string currentUser = HttpContext.Current.Request.LogonUserIdentity.Name; string str = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString(); string[] words = currentUser.Split('\\'); currentUser = words[1]; bool appuser = IsApplicationUser(currentUser); if (appuser) { DataSet ds = new DataSet(); using (SqlConnection connection = new SqlConnection(str)) { SqlCommand command = new SqlCommand(); command.Connection = connection; string strquery = "select Role_Cd from User_Role where AppCode='PM' and UserID = '" + currentUser + "'"; SqlCommand cmd = new SqlCommand(strquery, connection); SqlDataAdapter da = new SqlDataAdapter(cmd); da.Fill(ds); } if (e.CommandName.Equals("Edit") && ds.Tables[0].Rows[0]["Role_Cd"].ToString().Trim() != "ADMIN") { int index = Convert.ToInt32(e.CommandArgument); GridView gvCurrentGrid = (GridView)sender; GridViewRow row = gvCurrentGrid.Rows[index]; string strID = ((Label)row.FindControl("lblID")).Text; string strAppName = ((Label)row.FindControl("lblAppName")).Text; Response.Redirect("AddApplication.aspx?ID=" + strID + "&AppName=" + strAppName + "&Edit=True"); } } } Kindly let me know if I need to add something. Thanks for any suggestions.

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  • css style remains after click

    - by rod
    Hi All, I have a simple test page with a single styled button. I'm using a:hover when you hover over the button. However, when you click the button the a:hover style remains until I click on something else. How would I fix this and why is this happening? Thanks, rod. <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server"> <% using (Ajax.BeginForm(new AjaxOptions { })) { %> <div id="detailActions"> <a href="#">Delete User</a> </div> <% } %> </asp:Content> My CSS: #detailActions { margin-bottom: 7px; padding: 3px 0px 5px 0px; } #detailActions { padding: 1px 7px 1px 7px; margin: 0px 5px 0px 0px; border: solid 1px gray; background-color: #ADD8E6; cursor: pointer; width: auto !important; font-weight: bold; text-decoration: none; color: #003366; font-size: 1.2em; } #detailActions a:hover, #detailActions a:active, #detailActions a:focus { color: White; background-color: #00008B; }

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  • C# delegate or Func for 'all methods'?

    - by Michel
    Hi, i've read something about Func's and delegates and that they can help you to pass a method as a parameter. Now i have a cachingservice, and it has this declaration: public static void AddToCache<T>(T model, double millisecs, string cacheId) where T : class public static T GetFromCache<T>(string cacheId) where T : class So in a place where i want to cache some data, i check if it exists in the cache (with GetFromCache) and if not, get the data from somewhere, and the add it to the cache (with AddToCache) Now i want to extend the AddToCache method with a parameter, which is the class+method to call to get the data Then the declaration would be like this public static void AddToCache<T>(T model, double millisecs, string cacheId, Func/Delegate methode) where T : class Then this method could check wether the cache has data or not, and if not, get the data itself via the method it got provided. Then in the calling code i could say: AddToCache<Person>(p, 10000, "Person", new PersonService().GetPersonById(1)); AddToCache<Advert>(a, 100000, "Advert", new AdvertService().GetAdverts(3)); What i want to achieve is that the 'if cache is empty get data and add to cache' logic is placed on only one place. I hope this makes sense :) Oh, by the way, the question is: is this possible?

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  • What is the best way to get support from microsoft developers [closed]

    - by Malcolm Frexner
    I have a problem at my production web, that I am not able to solve. I am not able to reproduce the problem in stage or development. It only appears when the website is under heavy load. I think it is solvable if somebody who has a very good understanding of the internals of FormsAuthentication would have a look at it by logging into our system. It should be at least Scottgu! Somebody told me that Microsoft Premier Support is a good choice for this kind of problems. We have no MSDN subscription or other connection to microsoft that enables us to use MPS. Is there a way to get support on a incident base? Are there other ways to get this kind of support? EDIT Here is the problem itself: http://stackoverflow.com/questions/2448720/different-users-get-the-same-cookie-value-in-aspxanonymous

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  • Compiling code at runtime, loading into current appdomain.

    - by Richard Friend
    Hi Im compiling some code at runtime then loading the assembly into the current appdomain, however when i then try to do Type.GetType it cant find the type... Here is how i compile the code... public static Assembly CompileCode(string code) { Microsoft.CSharp.CSharpCodeProvider provider = new CSharpCodeProvider(); ICodeCompiler compiler = provider.CreateCompiler(); CompilerParameters compilerparams = new CompilerParameters(); compilerparams.GenerateExecutable = false; compilerparams.GenerateInMemory = false; foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies()) { try { string location = assembly.Location; if (!String.IsNullOrEmpty(location)) { compilerparams.ReferencedAssemblies.Add(location); } } catch (NotSupportedException) { // this happens for dynamic assemblies, so just ignore it. } } CompilerResults results = compiler.CompileAssemblyFromSource(compilerparams, code); if (results.Errors.HasErrors) { StringBuilder errors = new StringBuilder("Compiler Errors :\r\n"); foreach (CompilerError error in results.Errors) { errors.AppendFormat("Line {0},{1}\t: {2}\n", error.Line, error.Column, error.ErrorText); } throw new Exception(errors.ToString()); } else { AppDomain.CurrentDomain.Load(results.CompiledAssembly.GetName()); return results.CompiledAssembly; } } This bit fails after getting the type from the compiled assembly just fine, it does not seem to be able to find it using Type.GetType.... Assembly assem = RuntimeCodeCompiler.CompileCode(code); string typeName = String.Format("Peverel.AppFramework.Web.GenCode.ObjectDataSourceProxy_{0}", safeTypeName); Type t = assem.GetType(typeName); //This works just fine.. Type doesntWork = Type.GetType(t.AssemblyQualifiedName); Type doesntWork2 = Type.GetType(t.Name); ....

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