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Select \ Deselect all checkbox inside row

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GridView
This is a migrated thread and some comments may be shown as answers.
dan
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dan asked on 15 May 2014, 02:31 PM
I have GridView with several columns:

number 1 Checkbox (called "Select all")
number 2 test line
number 3 Checkbox
number 4 Checkbox

What i want to do is once the Checkbox from the first column is selected so i want automatic select Checkbox number 3 and 4 (all the checkbox inside the row except the first of curse...)

so this is what i have try:

        private void radGridView1_RowFormatting(object sender, RowFormattingEventArgs e)
        {
            if ((bool)e.RowElement.RowInfo.Cells["Select"].Value)
            {
                e.RowElement.RowInfo.Cells["First Name"].Value = true;
                e.RowElement.RowInfo.Cells["Second Name"].Value = true;
            }
            else
            {
                e.RowElement.RowInfo.Cells["First Name"].Value = false;
                e.RowElement.RowInfo.Cells["Second Name"].Value = false;
            }
        }
the only problem that i have is once selected the first checkbox  of several rows and all checkbox selected is i want to deselect specific checkbox this also select \ deselect other rows checkbox










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Dimitar
Telerik team
answered on 19 May 2014, 12:11 PM
Hello Dan,

Thank you for writing.

To achieve the desired behavior you can subscribe to the editor's ValueChanged event and change the values accordingly.  
void editor_ValueChanged(object sender, EventArgs e)
{
    bool value = (ToggleState)((RadCheckBoxEditor)sender).Value == ToggleState.On;
    radGridView1.CurrentRow.Cells["column3"].Value = value;
    radGridView1.CurrentRow.Cells["column4"].Value = value;
    
}

You can subscribe to this event in the CellEditorInitialized event (I have added an unsubscription before the subscription to avoid multiple subscriptions since the editors are reused):
void radGridView1_CellEditorInitialized(object sender, Telerik.WinControls.UI.GridViewCellEventArgs e)
{
    if (e.Column.Name == "column1")
    {
        RadCheckBoxEditor editor = e.ActiveEditor as RadCheckBoxEditor;
        editor.ValueChanged -= editor_ValueChanged;
        editor.ValueChanged += editor_ValueChanged;
    }
}

Additional information about the editor's events is available in the following article: Handling Editors' events.

Let me know if you have additional questions.
 
Regards,
Dimitar
Telerik
 
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Dimitar
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