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How to have an Expression field in GridGroupingControl?

Platform: ASP.NET Web Forms (Classic) |
Control: GridGroupingControl |
Published Date: April 30, 2011 |
Last Revised Date: July 10, 2014

 

The Expression fields can be created by using the ExpressionFieldDescriptor class. The ExpressionFieldDescriptor allows to have a field that holds an algebraic expression using the other fields of the Grid. Please refer the below code snippet which illustrates this:

C#

this.GridGroupingControl1.TableDescriptor.ExpressionFields.Add(new ExpressionFieldDescriptor("NewCategoryID", "[CategoryID] * 4", typeof(int)));

VB

Me.GridGroupingControl1.TableDescriptor.ExpressionFields.Add(New ExpressionFieldDescriptor("NewCategoryID", "[CategoryID] * 4", GetType(Integer)))

The above snippet creates the new field named as "NewCategoryID" which has it's value 4 times as the field CategoryID".

Sample:

http://websamples.syncfusion.com/samples/KB/Grid.Web/6.1.0.34/GGCExpField/main.htm

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