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• Button Click causes ModalPopUpExtender to close

  - by harold-sota

  I have a gridview inside a ModalPopUpExtender, the grid view have the button add delete and edit when i clic one of the button of the gridview the popup is closed. I wont to close the popup when the close button is clicked. Any ideas??

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• XML and ServerXMLHTTP problem

  - by ZAfrican

  Error Type: msxml3.dll (0x80072F0C) A certificate is required to complete client authentication I am sending an XML file to a remote server putUrl =https://www.myweb.com/test/drhandler.php xml_put = "<?xml version=""1.0""?><subscription id=""" & "14" &"""><status>" &"das" & "</status></subscription>" Public Function SendBatch(xml_put,putUrl) Set xmlhttp = CreateObject("MSXML3.ServerXMLHTTP") xmlhttp.Open "PUT", putUrl , False xmlhttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded" xmlhttp.send(xml_put) Set xmlhttp = Nothing end function Any help out there?

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• Object Arrays: I have 2 declarations. What's the difference?

  - by George

  Dim MyOrders As Order() Dim MyOrders2() As Order

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• Is a base class with shared fields and functions good design

  - by eych

  I've got a BaseDataClass with shared fields and functions Protected Shared dbase as SqlDatabase Protected Shared dbCommand as DBCommand ... //also have a sync object used by the derived classes for Synclock'ing Protected Shared ReadOnly syncObj As Object = New Object() Protected Shared Sub Init() //initializes fields, sets connections Protected Shared Sub CleanAll() //closes connections, disposes, etc. I have several classes that derive from this base class. The derived classes have all Shared functions that can be called directly from the BLL with no instantiation. The functions in these derived classes call the base Init(), call their specific stored procs, call the base CleanAll() and then return the results. So if I have 5 derived classes with 10 functions each, totaling 50 possible function calls, since they are all Shared, the CLR only calls one at a time, right? All calls are queued to wait until each Shared function completes. Is there a better design with having Shared functions in your DAL and still have base class functions? Or since I have a base class, is it better to move towards instance methods within the DAL?

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• I get error when trying to write response stream to a file

  - by MemphisDeveloper

  I am trying to test a rest webservice but when I do a post and try to retreive the save the response stream to a file I get an exception saying "Stream was not readable." What am I doing wrong? Public Sub PostAndRead() Dim flReader As FileStream = New FileStream("~\testRequest.xml", FileMode.Open, FileAccess.Read) Dim flWriter As FileStream = New FileStream("~\testResponse.xml", FileMode.Create, FileAccess.Write) Dim address As Uri = New Uri(restAddress) Dim req As HttpWebRequest = DirectCast(WebRequest.Create(address), HttpWebRequest) req.Method = "POST" req.ContentLength = flReader.Length req.AllowWriteStreamBuffering = True Dim reqStream As Stream = req.GetRequestStream() ' Get data from upload file to inData Dim inData(flReader.Length) As Byte flReader.Read(inData, 0, flReader.Length) ' put data into request stream reqStream.Write(inData, 0, flReader.Length) flReader.Close() reqStream.Close() ' Post Response req.GetResponse() ' Save results in a file Copy(req.GetRequestStream(), flWriter) End Sub

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• PUMA setup question

  - by jeff

  Can some one guide me on how to setup the puma project? http://puma.codeplex.com/SourceControl/list/changesets The guide they have is incomplete

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• GAC (64bit system) comparison?

  - by CrazyNick

  How to compare the 64bit systems GAC using powershell? Parameters: Assembly name full name version

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• How to connect to Oracle 10g server from client machines

  - by Tareq

  I have installed Oracle 10g in one of my office's computer. I want to keep this as database server. I am developing a .net project which will communicate with the database server from client machine and from the server machine. I success to communicate with oracle from server machine but not from client machine using the .net project. The connection code is as follows: Public OraConn As ADODB.Connection OraConn = New ADODB.Connection OraConn.Provider = "OraOLEDB.Oracle" OraConn.ConnectionString = "Data Source=<my_database_name>;User ID=<my_user>;Password=<my_pass>;" OraConn.Open() Please tell me step by step procedures how can I connect to my server database from my .net client program resides on client machine ? Thanks in Advance.

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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 to update non-scalar entity properties in EF 4.0?

  - by Mike

  At first I was using this as an extension method to update my detached entities... Public Sub AttachUpdated(ByVal obj As ObjectContext, ByVal objectDetached As EntityObject) If objectDetached.EntityState = EntityState.Detached Then Dim original As Object = Nothing If obj.TryGetObjectByKey(objectDetached.EntityKey, original) Then obj.ApplyCurrentValues(objectDetached.EntityKey.EntitySetName, objectDetached) Else Throw New ObjectNotFoundException() End If End If End Sub Everything has been working great until I had to update non-scalar properties. Correct me if I am wrong but that is because "ApplyCurrentValues" only supports scalars. To get around this I was just saving the FK_ID field instead of the entity object relation. Now I am faced with a many to many relationship so its not that simple. I would like to do something like this... Dim Resource = RelatedResource.GetByID(item.Value) Condition.RelatedResources.Add(Resource) But when I call SaveChanges the added Resources aren't saved. I started to play around with self-tracking entities (not sure if they will help solve my prob) but it seems they cannot be serialized to ViewState and this is a requirement for me. I guess one solution would be to add the xRef table as an entity and add the fks myself but I would rather it just work how I expect it too. I am open to any suggestions on how to either save my many to many relationships or serialize self-tracking entities (if self-trackingwould even solve my problem). Thanks!

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• Syntax error converting the nvarchar value to a column of data type int.

  - by Phil

  I have 1,2,3,4,5,6,7,8,9 stored as nvarchar inside Level in my db. I then have a dropdownlist with values 1,2,3,4,5,6,7,8,9. When a user makes a selection (i.e 1) (Level.SelectedValue.ToString). This builds an sql query via a param like this: "Select things From MBA_EOI Where level = 1" When I run the select I get the following error: Syntax error converting the nvarchar value '1,2,3,4,5,6,7,8,9' to a column of data type int. I was under the impression that I was dealing with an Nvarchar field and the selected value as string, where does the int conversion come in? p.s I have also tried Level.SelectedItem.ToString

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• Prevent automatic selection on textbox focus

  - by Jiri

  Hello, When you use a tab key to select a textbox, all text in it is automatically selected. What's the easiest way to prevent this from happening? (Setting the selection to none in Enter or GotFocus events doesn't work) Thanks (-:

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• Casting Generic Types

  - by David Rutten

  Public Function CastToT(Of T)(ByVal GenericType(Of Object) data) As GenericType(Of T) Return DirectCast(data, GenericType(Of T)) End Function The above clearly does not work. Is there any way to perform this cast if I know that all objects inside data are in fact of Type T?

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• Switching to WPF, the best use of time at Visual Studio Launch 2010

  - by Stewbob

  Yes, this is a programming-related question, if a little indirectly (that's why I marked it Community Wiki right away). For better or worse, I am switching from Winforms to WPF in April. I am also going to be in attendance at the Visual Studio Launch in Las Vegas. I have a real need to get up to speed quickly in WPF, so my question is: What sessions are going to be the best use of my time? I've got some picked out already, but I'm looking for some more advice on how to wade through all the marketing fluff and get some real educational value out of these few days. I have not been to one of these events before, so I don't really know how much is marketing hype, and how much is solid content. A couple of the workshops look interesting (VPR02 and VPS02), but I don't know enough about the actual content of these to justify the extra expense right now. Any thoughts there would be appreciated. And yes, I do have WPF learning planned other than just these few days in Vegas, but since I'm going to be there anyway, I want to learn as much as I can in the time available.

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• How to assign class property as display data memeber in datagridview

  - by KoolKabin

  hi guys, I am trying to display my data in datagridview. I created a class with different property and used its list as the datasource. it worked fine. but i got confused how to do that in case we have nested class. My Classes are as follows: class Category property UIN as integer property Name as string end class class item property uin as integer property name as string property mycategory as category end class my data list as follows: dim myDataList as list(of Item) = new List(of Item) myDataList.Add(new Item(1,"item1",new category(1,"cat1"))) myDataList.Add(new Item(2,"item2",new category(1,"cat1"))) myDataList.Add(new Item(3,"item3",new category(1,"cat1"))) myDataList.Add(new Item(4,"item4",new category(2,"cat2"))) myDataList.Add(new Item(5,"item5",new category(2,"cat2"))) myDataList.Add(new Item(6,"item6",new category(2,"cat2"))) Now I binded the datagridview control like: DGVMain.AutoGenerateColumns = False DGVMain.ColumnCount = 3 DGVMain.Columns(0).DataPropertyName = "UIN" DGVMain.Columns(0).HeaderText = "ID" DGVMain.Columns(1).DataPropertyName = "Name" DGVMain.Columns(1).HeaderText = "Name" DGVMain.Columns(2).DataPropertyName = "" **'here i want my category name** DGVMain.Columns(2).HeaderText = "category" DGVMain.datasource = myDataList DGVMain.refresh() I have tried using mycategory.name but it didn't worked. What can be done to get expected result? Is there any better idea other than this to accomplish the same task?

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• ADO.NET Multiple simultaneous reads from an open database.

  - by Deverill

  Answer not needed - my logic was wrong and this question is invalid. Charles helped me see where I went off-tracks. Thanks I have a utility that moves data from one source to another. In the process of writing the record I check to see if it exists and do an update/insert as necessary. The difficulty I have is that as I'm writing the main record info there is a 2nd table for "custom data" that I have to check to see if it exists and do an update/insert for that as well. Example: I may be loading a pencil sharpener that may or may not exist. While I'm writing it into destination it has characteristics such as style, color, etc. and each of them may or may not exist. As written I seem to need to have 2 DataReaders open, one for the sharpener and one to check for and update color. I am new to ADO.NET, but not to programming and it's more complicated than I listed but for sanity's sake I didn't put all the details. My question is: What am I missing? You can't have 2 readers open at the same time on a connection, yet I can't close the first if I'm stepping through all products. It seems inefficient to have 2 connections, readers, etc. for this. Is there a feature of ADO.NET DBs that I'm missing? How would you do it? Thanks!

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• Should I call Dispose() within a function after Return?

  - by Camilo Martin

  Should I call .Dispose() after returning an object that implements IDisposable? myDisposableObject Gimme() { //Code return disposableResult; disposableResult.Dispose(); } In other words, is the object I return a copy, or is it the object itself? Thanks :)

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• How Can I Generate Random Unqiue Numbers in C#

  - by peace

  public int GenPurchaseOrderNum() { Random random = new Random(); _uniqueNum = random.Next(13287, 21439); return UniqueNum; } I removed unique constraint from the PONumber column in the db because an employee should only generate P.O. # when the deal is set. Otherwise, P.O. # would have 0. P.O. Number used to have unique constraint, this forces employee to generate P.O. in all cases so the db doesn't throw unique constraint error. Since i removed the unique constraint, any quote doesn't have P.O. will carry 0 value. Otherwise, a unique value is generated for P.O. #. However, i don't have a unique constraint in db which makes it hard for me to know whether the application generated P.O. # is unique or not. What should i do? I hope my question is clear enough

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• Displaying windows-1252 text in a literal control

  - by GordonB

  I currently have an aspx page that has a placeholder on it. In the code-behind page i'm adding a literal control to the placeholder controls collection. The literal control just contains text/html read from a sql server database field. The only text character encoding i've used so far is UTF-8. I have the requirement for a specific page to use windows-1252 encoding. I've strapped this to the page, and browsers now recognise the proper encoding. <% Response.Charset= "windows-1252" %> My issue is that i have various german characters ( ö / ü / etc ) that aren't displaying correctly. As presumably they are still be written to the page in UTF-8 not in windows-1252. I'm looking at; Dim textEncoder = System.Text.Encoding.GetEncoding(1252) Which seems to be more geared up to dealing with byte arrays than text. Do i have to change my text to a byte array then encode as windows-1252 then get the text back out again, or is there a simpler way of achieving what i'm after?

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• convert string to datetime vb.net

  - by sinae

  i need to convert strings to date format. the requirement is if current month is selected, the date should be getdate. if any other month is selected then it should be first of that month. the data coming in is "January 2010", "February 2010" and so on. but it should be inserted into sql server database as 01/01/10 or 02/01/10

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• Windows Service doesn't start process with different credentials

  - by Marcus

  I have a Windows Service, running as a user, that should start several processes under different user credentials. I'm using the following code to start a process: Dim winProcess As New System.Diagnostics.Process With winProcess .StartInfo.Arguments = "some_args" .StartInfo.CreateNoWindow = True .StartInfo.ErrorDialog = False .StartInfo.FileName = "C:\TEMP\ProcessFromService\ProcessFromService\bin\Debug\ProcessFromService.exe" .StartInfo.UseShellExecute = False .StartInfo.WindowStyle = ProcessWindowStyle.Hidden 'Opgave WorkingDirectory kan soms tot problemen leiden, indien betreffende directory 'niet bereikbaar (rechten) is voor opgegeven gebruiker. 'Beter dus om deze niet op te geven. '.StartInfo.WorkingDirectory = My.Computer.FileSystem.SpecialDirectories.Temp .StartInfo.Domain = "" .StartInfo.UserName = "MyUserId" Dim strPassword As String = "MyPassword" Dim ssPassword As New Security.SecureString For Each chrPassword As Char In strPassword.ToCharArray ssPassword.AppendChar(chrPassword) Next .StartInfo.Password = ssPassword .Start() End With The process is correctly started when I use the same credentials as of which the Windows Service is running under. The process is not started, without any error, when I use different credentials. In other words: If the Windows Service is running as UserA then I can start a process running as UserA. If the Windows Service is running as UserB then I can not start a process running as UserA. I have created a test project in which I can reproduce this problem. If you put this project in C:\Temp then the used paths will be correct. You can download this test project here: https://dl.dropboxusercontent.com/u/5391091/ProcessFromService.zip NB: I hope this info is enough to explain it. If you need more info, please let me know and I will add it.

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• How to translate legacy system colors to (A)RGB?

  - by Paul Sasik

  I have a list of color values encoded as signed integers in a legacy INI file that I need to translate into (A)RGB values with .NET. An INI example: [INI_Section] Color=-2147483633 Doing something like: Color.FromArgb(-2147483633) gives an alpha-blended version of a color that is not at all what I expect. Is there a .NET method for translating these legacy colors properly? Note that pInvoke to OlePro32.dll is not an option.

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• Windows components in .net

  - by JGC

  hi I need a component in .net which able me to partition a year to some part which is making by clicking at the beginning of the part and click again at the end of that. the shape below is a sample of my need but I create it by buttons and back-color of them for showing for you: I don't know the name of this component to search for that. does anyone know this component or something like this? thank you

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• How to set an environment variable called CLIENTIP?

  - by eKek0

  I was trying to use the sentence Environment.SetEnvironmentVariable("CLIENTIP", <value>) but it didn't work. I used both an string variable and a constant to set the value. So, how can I do this to work?

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• Different kinds of doubles in vb.net?

  - by Jonathan

  Hey all- I'm using QBFC to generate invoices in a Quickbooks integrating app. I'm getting an exception thrown for lineItem.Amount.SetValue(val as Double) when I try to enter a programmatically generated double. The following does not work: lineItem = invoice.ORInvoiceLineAddList.Append.InvoiceLineAdd Dim amount as Double amount = summary.dailySold * summary.dailyRate loggingTxtBox.AppendText("Amount is " & amount & vbNewLine) lineItem.Amount.SetValue(amount) The exception I receive is System.Runtime.InteropServices.COMException (0x80040305): Invalid Amount format. at Interop.QBFC8.IQBAmountType.SetValue(Double val) The following works: lineItem.Amount.SetValue(20.3) Any suggestions? Is .NET interpretting a hard-coded double differently than a programmatically calculated one? Thanks- Jonathan

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