Deselecting event, set_cancel(true) does not preserve selectcolumn status

[Jimmy Vithalani]

Hi,

I need confirm dilog when user deselects a row.

I am using GridClientSelectColumn for row selection.

I am using RowDeselecting event of grid.

I am doing eventArgs.set_cancel(true); when user says cancel, and it leave the row in its old state(selected).

            var grid = sender;

            var MasterTable = grid.get_masterTableView();

            var row = MasterTable.get_dataItems()[eventArgs.get_itemIndexHierarchical()];

            var cell = MasterTable.getCellByColumnUniqueName(row, "Name");

if(!confirm("confirm?"))

{

eventArgs.set_cancel(true);

}

But the problem is check box in GridClientSelectColumn loses its status. It becomes unchecked and does not get checked even if i set cancel true.

I want the select checkbox should also be cancelled and made checked again.

Tell me if I have chosen wrong event or on wrong object.

Help please.

Thanks,

Jimmy.

[Princy]

Hello Jimmy,

I tried following code in order to show confirm on deselecting the row by using GridClientSelecteColumn.

C#:

    protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            GridDataItem item = (GridDataItem)e.Item;
            CheckBox chk = (CheckBox)item["sel"].Controls[0];
            chk.Attributes.Add("onclick", "check(this, '"+ item.ItemIndex+"');");
        }
    }

JavaScript:

<script type="text/javascript">
    var row;
    function check(checkBox, index) {
        if (!checkBox.checked && !confirm("confirm?")) {
            var grid = $find("<%= RadGrid1.ClientID %>");
            var masterTableView = grid.get_masterTableView();
            row = masterTableView.get_dataItems()[index];
            setTimeout('row.set_selected(true);', 10);
        }
    }
</script>

Thanks,
Princy.

[Jimmy Vithalani]

Hi Princy,

Your code is working nice and is exactly what I want.

Then I tried to replace statement from my code

eventArgs.set_cancel(true);

to

setTimeout('row.set_selected(true);', 10); 

and It worked :).

Actually I was feeling uneasy to bind onclick to each row's select checkbox, and using a server side event for that.

This way I achieved what I wanted and setTimeout('row.set_selected(true);', 10);  was usefull in that.

Thanks a lot.

Also can you tell me why we use setTimeOut here, why cant we directly make the row selected?

Thanks,

Jimmy.

[Jimmy Vithalani]

Hi,

One problem I found is,

When I "deselect all" from header checkbox, it asks for all rows and when i say cancel, it still deselects the items and only leaves last item selected. 

I think it is because row variable is assigned a new value after confirm. May be.

Please help.

Thanks.