Dec 24, 2011

Displaying Total in ASP.NET Gridview Footer Row Without using Template Field

There are tons of articles to display total in gridview footer row. The common approach to implement this is:
1. Create template field of the column which is to be totalled.
2. Define FooterTemplate and add Label control.
3. Take a variable and add value of each row in GridView1_RowDataBound event.
4. Find label control in footer and assign the variable.
It’s too complex. Let’s see how to take advantage of LINQ or Lambda expression and skip these steps.

Dec 16, 2011

Sequence contains no elements : LINQ error

If you are using LINQ or Lambda expression and getting error: InvalidOperationException “Sequence contains no elements”. It means you are trying to retrieve an element from an empty sequence(may be returned by LINQ query). There are some basic rules to handle this in LINQ or lambda expression.

Jan 20, 2011

Get Selected Radio button’s Text in C# windows app

The object is to get selected radio button’s text in windows app using C#. It can be done in many ways. Suppose you have one group box having radio-buttons. You have to show selected radio button’s text on OK button click.