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GridView w/ 2 Bound Lookup Columns where 2nd Column binding dependent on user selection in first column.

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Judy
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Judy asked on 21 Oct 2008, 12:41 AM

I have a grid with two lookup columns; I’ll call them ColumnA and ColumnB.

ColumnA is always bound to a BindingSource which is populated based on criteria selected outside of the grid (a Company dropdown selection in this case).  This works fine.

 

Lookup ColumnB is bound to a different DataSource than ColumnA.  Its binding is based upon the user selection in ColumnA.  This needs to be done on a row by row basis.

 

In a nutshell, when the selected value in ColumnA changes, ColumnB needs to be re-bound.  How do I accomplish this?

Thanks much in advance!

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Nikolay
Telerik team
answered on 24 Oct 2008, 09:03 AM
Hi Judy,

Thank you for contacting us.

You are able to change the DataSource for the whole ColumnB based on the selection in ColumnA. However, in this scenario, when you make a selection in a row of ColumnA and the DataSource should be changed for ColumnB, the display values in all the other rows of ColumnB will be changed according to the new DataSource.
I have demonstrated the approach in the sample project attached.

If you have additional questions, feel free to contact me.

All the best,
Nikolay
the Telerik team

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