Hello!! Based on the book I read and on my previous question and answers from you it seems to me that it's really very rare that I have to implement IEnumerable(one method) and IEnumerator(three methods) because these are already implemented I think in every collection class in .Net so I c...more >>

I am new to WPF and DataBinding. I am trying to create a listbox that will display a list of images in a stackpanel. The images themselves are retried from a table defined in SQL Server. ( Database used is the AdventureWorks database) I am currently able to retrieve the images from the databa...more >>

Hello! The question is about this assignment statement Person pp = arrList[0]; I know that to correct the error I have to write Person pp = (Person)arrList[0]; But my question is the following. This statement give compile error. I have always thought that the compiler doesn't see these k...more >>

I have the following code: try { fi = new FileInfo(fn); //fn is a string from a windows form, identifying the jpg in the file system fullPath = fi.DirectoryName + "\\" + fi.Name; Image bm = Image.FromFile(fullPath, true); //creat...more >>

Hi, I am trying to implement a pooling system Is there any way i can get a count of references of an object. I am thinking of basing it on this. http://aspalliance.com/1131_Understanding_Object_Pooling_in_Microsoft_NET.6 Please help and TIA...more >>

Hey guys, The below code works fine, BUT appends a comma to my (Please Select). Anybody know how I can get around this? Thanks... and sorry is in VB.NET (I wish I was in C# on this project)... but you guys are WAY more helpful than the VB forum. Dim _Query As IEnumerable(Of Employee) = ...more >>

Hello! Interface IEnumerable consist of method GetEnumerator() which will return an object of type IEnumerator. Now to my question will every object that GetEnumerator return implement Current, MoveNext and Reset. I mean in this case I don't have to implement these three methods because th...more >>

Hi, I have many querystring values that I pass around in my web application, so I created a Custom Page class that simply inherits from System.Web.UI.Page. I then check for all the querystrings in the URL and initialize them, and these are all public properties so I can reference them from ...more >>

I would like to add this color #E7EBF7 to my WPF data grid I know that I can add light blue color using following: Grid b = new Grid(); b.Background = System.Windows.Media.Brushes.LightBlue; but how to add specific color (i.e. #E7EBF7 ) Thanks DNB ...more >>

I'm getting a "Parameter Count mismatch error" with the following. At the class level: delegate void lvwCallback (object[] Args); Within a method of the same class: SQLDataReader r = ... int TopCount = 100; lvwCallback Job = new lvwCallback(ShowC...more >>

I am instantiating an object in an ASP.NET page. From this object I want to be able to access Session. I dont want to change the constructor to pass the page reference to it, and I dont want to have to add extra properties. How can I get a reference to the page object in which the object is ...more >>

I'm currently facing a problem when runnning an application on Vista from a logical drive (created with "subst"). The problem occurs when the application is run from command prompt. All is ok if the application is run from the debugger. Say I have an application that is located under C:\te...more >>

Hello, I have a DEVEXPRESS grid on my form When I try to load data into the form, If row count is huge (this example : 45000 row is returned, column count =~ 10) This line waits for a long time to load data into grid grdMats.DataMember = "MATS"; // THIS LINE WAITS FOR 1 MINUTE...more >>

I have a Tiff (fax) with the following properties: width: 1728 height: 1090 x resolution: 204 y resolution: 98 bit depth: 1 If I open this tiff in Photoshop and change the resolution to 96 and resize to 816 x 1056, then save as png the size is 3.1Kb (great!) If I resize the tiff with gd...more >>

Hi I'm looking for a tool to retrive informtion in which class/module a running C# program executes code. Just to avoid setting huge amount of break points :) ...more >>

I am making a custom control (a ProgressBar) and was wondering how do I force the control to paint like the base ProgressBar does? As it is my control doesn't paint until the main execution loop let's it, usually with Application.DoEvents. But even if I do an Application.DoEvents() in my OnPaint...more >>

Can anyone recommend a website or book that offers small projects to do to help you learn the .Net basics and C#? I've been programming for 7+ years but its all been VB6. I'd like to move to .NET but dont know where to start. I learn better when I can follow along with a sample project or someth...more >>

We have a base class that relies heavily on MethodInfo.Invoke. Often, as such things happen, exceptions are thrown in the method that was invoked, and this pops up as a TargetInvocationException, at the place of the Invoke command. I have tried wrapping my call to Invoke like this: try ...more >>

In my Windows forms app, I want my ComboBoxes to let the user begin to type values and it start to populate (if a match is found). But, I don't want the user to enter a value that is not in the list. What properties do I need to set to what to make this happen, please? I think it the invo...more >>

I am having problems using HttpContext.Current.Request.Url.Host. I have some code that does this... if (HttpContext.Current != null) { subdomain = HttpContext.Current.Request.Url.Host; } Now if I put a break point on the if statemen...more >>

Hey all, this question is somewhat related to ASP.NET but I think it's very relevant to how the dynamics of the C# language work so I'm asking it in this forum: In my webcontrol class that inherits from System.Web.UI.UserControl. I have a private static variable declared. And on my OnLoad I ...more >>

Hello! I have a DataGridView which has been dragged from the Toolbox into the Form and is called dataGridView1. My question is about the event Validating. There is an event method below called dataGridView1_Validating which has been created automatically when I selected the Validating event....more >>

Hi, in VS 2003 I had no problem to debug into a dll with an existing pdb file. In VS 2005 and also in VS 2008 I'm not able to debug into the source code of the dll. If I try so an explorer window appears where I have to choose the location of the source file. The pdb file lies inside the ...more >>

Layer A is on top on Layer B. Layer A talks to layer B using the interfaces defined in B. For input and return values. My question is should i take out the interfaces from B and put it in a separate project?...more >>

Hi, How do you get the application folder path that a user select in a msi install which defaults to c:\Program Files\Company Name\...? Thanks, Bob...more >>

Hi, I have a xml file with content like following: <entities> <entity created="28.02.2008 14:32:31" crudaction="Create"> <item NAME="field1" VALUE="Huber Gmbh & Co. KG" /> </entity> </entities> I try to load the file with XmlDocument.Load(pathToXmlFile) and receive a Xml Excep...more >>

Just curious. I'm experimenting with some linux distros and wanted to try out some of my .net apps using mono. I am wondering if there is an IDE for c# which runs on linux. (I'm particularly interested in intellisense, the visual designer is of secondary importance). Thanks....more >>

Hi friends, Iam new to this group. I have problem with executing the output(exe) file in an another system. I have created and compiled in a VS 2005 tool. when i run the exe file in a new system. its prompting me for send don't send error. what should i do, for getting the output. I have i...more >>

Hi there, I have a WindowsForm which includes a label. I want to add a date to this label which a user can select. I thought it is probably the best to open another WindowsForm and to add on this one a monthcalendar. My prolbem is: How can I use this MonthcalendarForm to edit / add the d...more >>

all, I have a startdate and enddate, i wish to be able to calculate how many weeks have been selected. so for example, using the startdate and enddate, i select 11/02/2008 and 25/02/2008 i need a method to sum how many weeks that is. Any suggestions?Where do i start? Cheers!...more >>

I previously used the following which works fine: SqlCommandBuilder mySqlCommandBuilder = new SqlCommandBuilder(daAccount); daAccount.Update(dsAccount, "Account"); But now I also want to retrieve the resulting identity column value from an INSERT. So I tried the following: daAccount.Ins...more >>