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Disable the cells based on the value in other column.

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GridView
This is a migrated thread and some comments may be shown as answers.
Subh
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Subh asked on 24 Sep 2009, 08:32 AM
I have three columns "Column1","Column2","Column3". Based on the value in "Column1" the "Column2" and "Column3" should be disabled or enabled. How can this be implemeneted?

Thanks in advance.

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Robert
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answered on 25 Sep 2009, 04:08 PM
Hey Subh,

You can prevent the user from editing a cell using the CellBeginEdit event. Here is a quick example:

        private void radGridView1_CellBeginEdit(object sender, Telerik.WinControls.UI.GridViewCellCancelEventArgs e) 
        { 
            if (radGridView1.Columns[e.ColumnIndex].FieldAlias == "ItemID"
            { 
                if (((int)radGridView1.Rows[e.RowIndex].Cells[0].Value) > 10) 
                    e.Cancel = true
            } 
        } 

- Robert
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Jack
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answered on 26 Sep 2009, 06:15 AM
Hi Subh,

I suppose that you want to disable the editing of specific cell. If this is the case, you can handle CellBeginEdit event. Please consider the sample below:

void radGridView1_CellBeginEdit(object sender, GridViewCellCancelEventArgs e) 
    GridViewDataColumn column = (GridViewDataColumn)this.radGridView1.CurrentColumn; 
    if ((column.UniqueName == "Column2" || column.UniqueName == "Column3")) 
    { 
        if ((int)this.radGridView1.CurrentRow.Cells["Column1"].Value < 10) 
        { 
            e.Cancel = true
        } 
    } 


Additionally you can change the cell appearance when handling CellFormatting event. Take a look at the following KB article for more information.

If you have any further questions, don't hesitate to ask.

Greetings,
Jack
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