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<%# String.Format("{0:#####-####}", Convert.ToInt32(Eval("ZipCode"))) %> It is necessary to convert the ZipCode field to an integer in this instance because the Format class expects an integer to properly format a number, otherwise it will only return the string or value that you passed to the Format class. I am using this in conjunction with the MaskedEditExtender, which removes [...]

A common query is to return a single value from a SQL query such as an aggregate to get the total number of rows in a table. I will show you how to do just that with SQL Server Stored Procedures and C#. Preparation You will need some table data to query against. I am using the [...]

Found this great article on how to add a counter column to your data rich controls. http://www.lazyasscoder.com/AspNet/Article.aspx?id=55&title=How+To%3A+Add+a+row+count+column+to+a+GridView%2C+DataList+or+Repeater The above article is specific to a GridView. Here is an example with a Repeater control. <asp:Repeater ID="repeater" runat="server"> <ItemTemplate> <%# Container.ItemIndex + 1 %> <%# Eval("field_name") %>'> </ItemTemplate> </asp:Repeater>

If you are in a situation where you need to add an item to an array you will need to use one of the collection classes such as the Arraylist. New values cannot be added to an array that has set values. String Array Example string[] list = new string[] { "one", "two", "three" }; foreach (string item [...]

If you are working with Dreamweaver templates and your ASP.NET directives keep disappearing try the following. Place <%–’comment–%> on the second line after your page declaration on your content pages. You can leave your template as is. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="default.aspx.cs" Inherits="default" %> <%--'comment--%> You do not need to set the <!– TemplateInfo codeOutsideHTMLIsLocked=”false” –> to true. This is [...]

Here is a great article that explains the Error and Task List within Visual Studio. The Error List shows any errors and warnings within your project and the Task List helps you track your progress and mark items as completed just as you would with an external todo list application. Read more at http://en.csharp-online.net/Visual_Studio_Web_Applications%E2%80%94Error_List_and_Task_List [...]

This is a multi-part post that lists all of the tools that I use on a regular basis as a web developer. The list is Microsoft Windows centric but I will point out the applications that are cross-platform (as best as I can). IDEs (Integrated Development Environment)* Microsoft ASP.NET Both of the IDEs below are top notch and [...]

The following snippet will join values in an array with a specified separator. string[] items = new string[] { "one", "two", "three" }; string.Join(", ", items);

If your ASP.NET tab has disappeared (mine was caused by installing ISAPI_Rewrite) then the following MSDN blog article has a tool you can use to fix it. http://blogs.msdn.com/tom/archive/2008/04/17/asp-net-tab-missing.aspx

I was having issues accessing a web control directly within a user control and used the following to access the web control within a LoginView in the User Control. The same syntax below can be used if you are looking for a nested control within a control. System.Web.UI.WebControls.Literal name_literal = (System.Web.UI.WebControls.Literal)this.LoginView1.FindControl("name"); name_literal.Text = "Text goes here"; [...]