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  • FxCop giving a warning on private constructor CA1823 and CA1053

    - by Luis Sánchez
    I have a class that looks like the following: Public Class Utilities Public Shared Function blah(userCode As String) As String 'doing some stuff End Function End Class I'm running FxCop 10 on it and it says: "Because type 'Utilities' contains only 'static' ( 'Shared' in Visual Basic) members, add a default private constructor to prevent the compiler from adding a default public constructor." Ok, you're right Mr. FxCop, I'll add a private constructor: Private Utilities() Now I'm having: "It appears that field 'Utilities.Utilities' is never used or is only ever assigned to. Use this field or remove it." Any ideas of what should I do to get rid of both warnings?

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  • Avoid running of software after copying to next machine?

    - by KoolKabin
    Hi guys, I have developed a small software. I want to provide and run it commercially only. I want it to be run in the machines who have purchased it from me. If someone copies it from my clients computer and runs it in next computer, I would like to stop functioning/running the software. What can be the ways to prevent the piracy of my software?

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  • How Do You Databind Avalon DateTimePicker Start Value?

    - by discwiz
    Trying to set the start time of the Avalon DateTimePicker, but all I get is the current time. Anyone had any success with this control. FYI, I am stuck using .Net 3.0. <wf:DateTimePicker x:Name="DatePickerStartTime" DateTimeSelected="{Binding Path=StartTime,Mode=TwoWay}" > </wf:DateTimePicker> Thanks, Dave

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  • Ignore errors when scanning for files in C:\

    - by Shane
    I am trying to search the C:\ drive for all files with a certain extension. I am using the following code which is working fine, however when it encounters an error the whole process stops rather than continuing with the scan. (running in backgroundworker, hence the invoke) Private Sub ScanFiles(ByVal rootFolder As String, ByVal fileExtension As String) 'Determine if the current folder contains any sub folders Dim subFolders() As String = System.IO.Directory.GetDirectories(rootFolder) For Each subFolder As String In subFolders ScanFiles(subFolder, fileExtension) Next For Each file As String In System.IO.Directory.GetFiles(rootFolder, fileExtension) lb.BeginInvoke(New AddValue(AddressOf AddItems), file) Next End Sub How can I make this code continue once an error is encountered? Thanks for your help.

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  • Generate Info (wrapper) Class from stored procedure

    - by Adem
    Hello everybody I am in a crucial project and I am trying to speed up the development phase by using codesmith for generating the business class DAL and info class for the tables of my project. There are about 50 tables with relationships parent child many to many and for retrieving data I have to code several inner joins in stored procedures. I have to combine fields from many tables and this makes working with the info class difficult. Is there anyway to generate info class from stored procedures or to be more exact is there a way to parse the result set of the stored procedure and to generate the info class with properties for every column in that result set. Please if anyone can give me some advice and tell me how to achieve this. Best Regards

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  • Prevent SQL Injection in Dynamic column names

    - by Mr Shoubs
    I can't get away without writing some dynamic sql conditions in a part of my system (using Postgres). My question is how best to avoid SQL Injection with the method I am currently using. EDIT (Reasoning): There are many of columns in a number of tables (a number which grows (only) and is maintained elsewhere). I need a method of allowing the user to decide which (predefined) column they want to query (and if necessary apply string functions to). The query itself is far too complex for the user to write themselves, nor do they have access to the db. There are 1000's of users with varying requirements and I need to remain as flexible as possible - I shouldn't have to revisit the code unless the main query needs to change - Also, there is no way of knowing what conditions the user will need to use. I have objects (received via web service) that generates a condition (the generation method is below - it isn't perfect yet) for some large sql queries. The _FieldName is user editable (parameter name was, but it didn't need to be) and I am worried it could be an attack vector. I put double quotes (see quoted identifier) around the field name in an attempt to sanitize the string, this way it can never be a key word. I could also look up the field name against a list of fields, but it would be difficult to maintain on a timely basis. Unfortunately the user must enter the condition criteria, I am sure there must be more I can add to the sanatize method? and does quoting the column name make it safe? (my limited testing seems to think so). an example built condition would be "AND upper(brandloaded.make) like 'O%' and upper(brandloaded.make) not like 'OTHERBRAND'" ... Any help or suggestions are appreciated. Public Function GetCondition() As String Dim sb As New Text.StringBuilder 'put quote around the table name in an attempt to prevent some sql injection 'http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html sb.AppendFormat(" {0} ""{1}"" ", _LogicOperator.ToString, _FieldName) Select Case _ConditionOperator Case ConditionOperatorOptions.Equals sb.Append(" = ") ... End Select sb.AppendFormat(" {0} ", Me.UniqueParameterName) 'for parameter Return Me.Sanitize(sb) End Function Private Function Sanitize(ByVal sb As Text.StringBuilder) As String 'compare against a similar blacklist mentioned here: http://forums.asp.net/t/1254125.aspx sb.Replace(";", "") sb.Replace("'", "") sb.Replace("\", "") sb.Replace(Chr(8), "") Return sb.ToString End Function Public ReadOnly Property UniqueParameterName() As String Get Return String.Concat(":" _UniqueIdentifier) End Get End Property

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  • Calling Sub from EventHandler

    - by madlan
    I'm using the below to update controls from another thread (works great) How would I call a Sub (Named UpdateList)? The UpdateList updates a listview with a list of databases on a selected SQL instance, requires no arguments. Private Sub CompleteEventHandler(ByVal sender As Object, ByVal e As Microsoft.SqlServer.Management.Common.ServerMessageEventArgs) SetControlPropertyValue(Label8, "text", e.ToString) UpdateList() MessageBox.Show("Restore Complete") End Sub Delegate Sub SetControlValueCallback(ByVal oControl As Control, ByVal propName As String, ByVal propValue As Object) Private Sub SetControlPropertyValue(ByVal oControl As Control, ByVal propName As String, ByVal propValue As Object) If (oControl.InvokeRequired) Then Dim d As New SetControlValueCallback(AddressOf SetControlPropertyValue) oControl.Invoke(d, New Object() {oControl, propName, propValue}) Else Dim t As Type = oControl.[GetType]() Dim props As PropertyInfo() = t.GetProperties() For Each p As PropertyInfo In props If p.Name.ToUpper() = propName.ToUpper() Then p.SetValue(oControl, propValue, Nothing) End If Next End If End Sub Based On: http://www.shabdar.org/cross-thread-operation-not-valid.html

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  • Pattern for limiting number of simultaneous asynchronous calls

    - by hitch
    I need to retrieve multiple objects from an external system. The external system supports multiple simultaneous requests (i.e. threads), but it is possible to flood the external system - therefore I want to be able to retrieve multiple objects asynchronously, but I want to be able to throttle the number of simultaneous async requests. i.e. I need to retrieve 100 items, but don't want to be retrieving more than 25 of them at once. When each request of the 25 completes, I want to trigger another retrieval, and once they are all complete I want to return all of the results in the order they were requested (i.e. there is no point returning the results until the entire call is returned). Are there any recommended patterns for this sort of thing? Would something like this be appropriate (pseudocode, obviously)? private List<externalSystemObjects> returnedObjects = new List<externalSystemObjects>; public List<externalSystemObjects> GetObjects(List<string> ids) { int callCount = 0; int maxCallCount = 25; WaitHandle[] handles; foreach(id in itemIds to get) { if(callCount < maxCallCount) { WaitHandle handle = executeCall(id, callback); addWaitHandleToWaitArray(handle) } else { int returnedCallId = WaitHandle.WaitAny(handles); removeReturnedCallFromWaitHandles(handles); } } WaitHandle.WaitAll(handles); return returnedObjects; } public void callback(object result) { returnedObjects.Add(result); }

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  • ObjectDataSource DataObjectTypeName Help. Pass object as parameter

    - by Kettenbach
    I have a partial class (the main class is a LinqToSql generated class) <DataObject(True)> _ Partial Public Class MBI_Contract <DataObjectMethod(DataObjectMethodType.Select, True)> _ Public Shared Function GetCancelableContracts(ByVal dealer As Dealer) As List(Of MBI_Contract) Return Utilities.GetCancelableContractsForDealer(dealer) End Function End Class Here is the method it's calling Public Function GetCancelableContractsForDealer(ByVal dealer As Dealer) As List(Of MBI_Contract) Dim db As TestDataContext = TestDataContext.Create() Return (From mbi As MBI_Contract In db.MBI_Contracts _ Where mbi.MBI_DealerNumber = dealer.DealerNumber _ AndAlso mbi.MBI_PaidFor = True _ AndAlso mbi.MBI_Deleted = False).ToList() End Function I want to use the ObjectDataSource to drive a DropDownList. <asp:ObjectDataSource ID="contractOds" runat="server" TypeName="MBI_Contract" SelectMethod="GetCancelableContracts" DataObjectTypeName="Dealer"> </asp:ObjectDataSource> My aspx page has a Dealer property that is set in a BasePage. My question is how can I pass this property(object) to the ObjectDataSource, so it can be evaluated in my select method. Does anyone know how I can do this? Or am I totally doing this the wrong way? Thanks for any Advice, Cheers, ~ck in San Diego

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  • How to copy a formatted cell in Excel to a table cell in Word using .NET?

    - by Harry Nath
    I'm attempting to copy cells, one at a time, from an Excel 2003 (or 2007) spreadsheet to a Word 2003 (or 2007) table. I'd like the code to be version-agnostic, and so am using late binding. The formatting of the contents of the Excel cell, such as color, underline, strike-through, needs to be preserved. My approach is to use a Word doc as a template. It has a table at the top which I can copy to the end of the doc, add rows as needed, and fill in the word table cells with the data from the excel spreadsheet. Unfortunately, all the formatting disappears. All I get is the text itself.

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  • Databinding Error when Recreating object

    - by Maxim Gershkovich
    Hi All, Figure there is a simple solution to this problem but I have been unable to find it. I have databinding in an ASP.Net application to a GridView. This gridview is bound to an ObjectDataSource as per standard usage. The problem I have is that one of my bound fields uses the property DataFormatString="{0:C}" and due to the currency format being displayed when an update is attempted and the object recreated I get a error as such "$13.00 is not a valid value for Decimal." Clearly this is a result of the column using a FormatString and then attempting to bind it back to a decimal property I have in my object called UnitPrice. I am assuming there is some markup I can set that can specify how the value is translated back? Thanks in advance for any help.

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  • CustomValidatation control that fire on multiple control events

    - by George
    I am trying to create a UserControl that is a composite control for entering Dates. It involves 2 drop down controls (one for month and one for day) and a text box for year. It also has a CustomValidation control that I would like the user of the UserControl to be able to set the ClientValidationFunction property and have it triggered whenever the value in any of the 3 date part controls changes. To hook up each of the 3 controls to the validation control, I use teh AJAX ValidatorHookupControlID method. If I hard code the following code directly in my aspx page that houses the usercontrol, my Client Validation Function is successfulluy called when any of the 3 date part control values are changed: <script type="text/javascript"> //<![CDATA[ debugger; alert('hooking up'); ValidatorHookupControlID("ctl00_phPageContent_dtmPassportExpirationDate_txtYear", document.all("ctl00_phPageContent_dtmPassportExpirationDate_CustomValidator1")); ValidatorHookupControlID("ctl00_phPageContent_dtmPassportExpirationDate_ddlDate", document.all("ctl00_phPageContent_dtmPassportExpirationDate_CustomValidator1")); ValidatorHookupControlID("ctl00_phPageContent_dtmPassportExpirationDate_ddlMonth", document.all("ctl00_phPageContent_dtmPassportExpirationDate_CustomValidator1")); //]]> However, I would like my usercontrol to emit this Javascript, so I added the following Code. Public Property ClientValidationFunction() As String Get Return CustomValidator1.ClientValidationFunction End Get Set(ByVal value As String) CustomValidator1.ClientValidationFunction = value End Set End Property Public Property EnableClientScript() As Boolean Get Return CustomValidator1.EnableClientScript End Get Set(ByVal value As Boolean) CustomValidator1.EnableClientScript = value End Set End Property Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender If Me.ClientValidationFunction.Trim <> "" AndAlso Me.EnableClientScript Then RegisterValidationScript() End If End Sub Private Sub RegisterValidationScript() Dim Key As String = Me.ClientID & "_ClientValidate" If Not Page.ClientScript.IsClientScriptBlockRegistered(Key) Then Page.ClientScript.RegisterClientScriptBlock(GetType(String), Key, GetJavascript, True) End If End Sub Private Function GetJavascript() As String Dim Out As String = "" Const Quote As String = Chr(34) Out &= "debugger;" & vbCrLf Out &= "ValidatorHookupControlID(" & Quote & txtYear.ClientID & Quote & ", document.all(" & Quote & CustomValidator1.ClientID & Quote & "));" & vbCrLf Out &= "ValidatorHookupControlID(" & Quote & ddlDate.ClientID & Quote & ", document.all(" & Quote & CustomValidator1.ClientID & Quote & "));" & vbCrLf Out &= "ValidatorHookupControlID(" & Quote & ddlMonth.ClientID & Quote & ", document.all(" & Quote & CustomValidator1.ClientID & Quote & "));" & vbCrLf Return Out End Function Unfortunately, when the ValidatorHookupControlID method is called, the second parameter (the one that locates the validation control) always evaluates to null and the method fails. ValidatorHookupControlID("ctl00_phPageContent_DateSelector21_txtYear", document.all("ctl00_phPageContent_DateSelector21_CustomValidator1")); Can you tell me how to correct this error?

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  • C# Value member property repopulate the control..

    - by karthik
    Hi.. I just wanted to confirm couple of things. I) Code snippet: cmb1.Datasource= dt; cmb1.Valuemember = "value"; Here data population happens 2 time for the control, 1 More time extra,bcoz of value member getting changed after data source assigned. Is it true? II) How can I trace these re population in C#? I just wanted to debug and see and confirm? example please? Thanks Karthik

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  • Trouble upgrading to .NET 4 with VS2008. What am I missing?

    - by Matt H.
    I downloaded the .NET 4 framework from miscrosoft here: http://www.microsoft.com/downloads/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992&displaylang=en I installed and rebooted. When I go to compile options -- target framework... .NET 4 isn't on the list. Is .net 4 not compatible with VS2008? It would be nice if Microsoft stated that somewhere...

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  • Fill Combo-box via DataSource Using Values from Various Columns

    - by peace
    Employee emp = new Employee(); comHandledBySQt.DataSource = emp.GetDataFromTable("1"); comHandledBySQt.DisplayMember = "FirstName"; The above code displays drop list of employees first names in a combo box. I want first name and last name to be displayed. How can i do it? I tried to include two columns FirstName and LastName as below but didn't work. comHandledBySQt.DisplayMember = "FirstName" + " " + "LastName"; Any help will be appreciated.

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  • Searching a set of data with multiple terms using Linq

    - by Cj Anderson
    I'm in the process of moving from ADO.NET to Linq. The application is a directory search program to look people up. The users are allowed to type the search criteria into a single textbox. They can separate each term with a space, or wrap a phrase in quotes such as "park place" to indicate that it is one term. Behind the scenes the data comes from a XML file that has about 90,000 records in it and is about 65 megs. I load the data into a DataTable and then use the .Select method with a SQL query to perform the searches. The query I pass is built from the search terms the user passed. I split the string from the textbox into an array using a regular expression that will split everything into a separate element that has a space in it. However if there are quotes around a phrase, that becomes it's own element in the array. I then end up with a single dimension array with x number of elements, which I iterate over to build a long query. I then build the search expression below: query = query & _ "((userid LIKE '" & tempstr & "%') OR " & _ "(nickname LIKE '" & tempstr & "%') OR " & _ "(lastname LIKE '" & tempstr & "%') OR " & _ "(firstname LIKE '" & tempstr & "%') OR " & _ "(department LIKE '" & tempstr & "%') OR " & _ "(telephoneNumber LIKE '" & tempstr & "%') OR " & _ "(email LIKE '" & tempstr & "%') OR " & _ "(Office LIKE '" & tempstr & "%'))" Each term will have a set of the above query. If there is more than one term, I put an AND in between, and build another query like above with the next term. I'm not sure how to do this in Linq. So far, I've got the XML file loading correctly. I'm able to search it with specific criteria, but I'm not sure how to best implement the search over multiple terms. 'this works but far too simple to get the job done Dim results = From c In m_DataSet...<Users> _ Where c.<userid>.Value = "XXXX" _ Select c The above code also doesn't use the LIKE operator either. So partial matches don't work. It looks like what I'd want to use is the .Startswith but that appears to be only in Linq2SQL. Any guidance would be appreciated. I'm new to Linq, so I might be missing a simple way to do this. The XML file looks like so: <?xml version="1.0" standalone="yes"?> <theusers> <Users> <userid>person1</userid> <nickname></nickname> <lastname></lastname> <firstname></firstname> <department></department> <telephoneNumber></telephoneNumber> <email></email> </Users> <Users> <userid>person2</userid> <nickname></nickname> <lastname></lastname> <firstname></firstname> <department></department> <telephoneNumber></telephoneNumber> <email></email> </Users>

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  • Entity Framework 4 / POCO - Where to start?

    - by Basiclife
    Hi, I've been programming for a while and have used LINQ-To-SQL and LINQ-To-Entities before (although when using entities it has been on a Entity/Table 1-1 relationship - ie not much different than L2SQL) I've been doing a lot of reading about Inversion of Control, Unit of Work, POCO and repository patterns and would like to use this methodology in my new applications. Where I'm struggling is finding a clear, concise beginners guide for EF4 which doesn't assume knowledge of EF1. The specific questions I need answered are: Code first / model first? Pros/cons in regards to EF4 (ie what happens if I do code first, change the code at a later date and need to regenerate my DB model - Does the data get preserved and transformed or dropped?) Assuming I'm going code-first (I'd like to see how EF4 converts that to a DB schema) how do I actually get started? Quite often I've seen articles with entity diagrams stating "So this is my entity model, now I'm going to ..." - Unfortunately, I'm unclear if they're created the model in the designer, saved it to generate code then stopped any further auto-code generation -or- They've coded (POCO)? classes and the somehow imported them into the deisgner view? I suppose what I really need is an understanding of where the "magic" comes from and how to add it myself if I'm not just generating an EF model directly from a DB. I'm aware the question is a little vague but I don't know what I don't know - So any input / correction / clarification appreciated. Needless to say, I don't expect anyone to sit here and teach me EF - I'd just like some good tutorials/forums/blogs/etc. for complete entity newbies Many thanks in advance

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  • Problem using ScriptManager.RegisterStartUpScript in user control - Script Error "function is not de

    - by poojad
    I have a aspx page which contains a User Control uc1 ans within uc1, there is another user control uc2. Now I need to call a javascript function in the uc2's page load. (I understand that the Pages are not properly designed, but I am sorry as this is an old application, I am not supposed to make any changes in the design) I am doing this using ScriptManager.RegisterStartUpScript as I have an update panel, but the function is not being called and the script error "load is not defined" is fired. (load is the javascript function in uc2) Can anyone help me out with this? Thank you.

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  • permutations gone wrong

    - by vbNewbie
    I have written code to implement an algorithm I found on string permutations. What I have is an arraylist of words ( up to 200) and I need to permutate the list in levels of 5. Basically group the string words in fives and permutated them. What I have takes the first 5 words generates the permutations and ignores the rest of the arraylist? Any ideas appreciated. Private Function permute(ByVal chunks As ArrayList, ByVal k As Long) As ArrayList ReDim ItemUsed(k) pno = 0 Permutate(k, 1) Return chunks End Function Private Shared Sub Permutate(ByVal K As Long, ByVal pLevel As Long) Dim i As Long, Perm As String Perm = pString ' Save the current Perm ' for each value currently available For i = 1 To K If Not ItemUsed(i) Then If pLevel = 1 Then pString = chunks.Item(i) 'pString = inChars(i) Else pString = pString & chunks.Item(i) 'pString += inChars(i) End If If pLevel = K Then 'got next Perm pno = pno + 1 SyncLock outfile outfile.WriteLine(pno & " = " & pString & vbCrLf) End SyncLock outfile.Flush() Exit Sub End If ' Mark this item unavailable ItemUsed(i) = True ' gen all Perms at next level Permutate(K, pLevel + 1) ' Mark this item free again ItemUsed(i) = False ' Restore the current Perm pString = Perm End If Next K above is = to 5 for the number of words in one permutation but when I change the for loop to the arraylist size I get an error of index out of bounds

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  • Sales figures not displayed in form

    - by Brian Wilson
    Trying to calculate total sales for 5 items, 3 stores. Here's a s/s of what Im getting, along with my code. What am I missing/doing wrong? (p.s. It's not returning an error code in 'debug') Public Class Form1 Private Sub btnCalc_Click(sender As Object, e As EventArgs) Handles btnCalc.Click Dim ttlsales As Double 'set up array data Dim sales(,) As Integer = {{25, 64, 23, 45, 14}, {12, 82, 19, 34, 63}, {54, 22, 17, 43, 35}} Dim price() As Double = {12.0, 17.95, 95.0, 86.5, 78.0} 'mark totals Dim totals(2) As Double For store As Integer = 0 To 2 For item As Integer = 0 To 4 Next Next 'display output lstOut.Items.Add("Sales Per Store") For store As Integer = 0 To 2 lstOut.Items.Add(store + 1 & ":" & FormatCurrency(totals(store))) ttlsales += totals(store) Next lstOut.Items.Add("Total Sales: " & FormatCurrency(ttlsales)) End Sub End Class

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  • Creating share programmatically fails with error 9

    - by Christopher
    Directory.CreateDirectory("C:\MyTestShare") Dim managementClass As New ManagementClass("Win32_Share") Dim inParams As ManagementBaseObject = managementClass.GetMethodParameters("Create") inParams.Item("Description") = "My Files Share" inParams.Item("Name") = "My Files Share" inParams.Item("Path") = "C:\MyTestShare" inParams.Item("Type") = 0 If (DirectCast(managementClass.InvokeMethod("Create", inParams, Nothing).Properties.Item("ReturnValue").Value, UInt32) <> 0) Then Throw New Exception("Unable to share directory.") End If I am using the following code to set up a share, but I am always getting a return value of 9 which means invalid name. I am passing a string and have tried to use an explicit string and I still get error 9. I am creating the share remotely rather than on local machine however. Not sure if that matter.

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  • Dispose Form opened in MainForm tab

    - by fireBand
    Hi, I have a MainForm which has tab Control and several independent form. I open each Individual From in the tab of the main form. A "Close Tab" button on the MainFrom closes the current tab, its implementation is below. This closes the current tab but what I also need is to dispose the From whose tab is closed but I am not sure how to get the instance of the form.' Any help is appreciated Thanks in Advance. 'Close the current tab Private Sub CloseCurrentTab() 'Close the current tab Dim tabPageSave As TabPage tabPageSave = tcDisplayDetails.SelectedTab tcDisplayDetails.TabPages.Remove(tabPageSave) End Sub

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