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Persist Updating Row's controls state

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Grid
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Rafael Enriquez
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Rafael Enriquez asked on 09 Jul 2010, 09:59 PM
Hi:

I have a radgrid (working with radajaxmanager). I'm using CommandItemTemplate to issue grid commands (insert/update). I'm using FormTemplate to insert/edit records. inside FormTemplate, I have normal asp textboxes, dropdowns and validators. Validators have servervalidate handler. When user clicks Update, command is fired OK and validations happen OK. The problem is that, after callback ends, the updating row gets closed, no matter if there were invalid validators. In the same app I have another grid working ok: updating row stay expanded if validation was wrong and every invalid validator displays. The only difference I can see in the way the 2 grids are performing is that, the right grid does not issue the NeedDataSource event, while the wrong grid does. Does anybody have a clue on what's happening??? how can I persist the state of the updating item??? Notice that I need not onlt the Expanded state, but each of the validator state too.

Thanks in advance.

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Veli
Telerik team
answered on 14 Jul 2010, 09:45 AM
Hello Rafael,

If you are implementing custom updates / inserts, probably the grid gets updated and rebound even though the page is invalid. Try canceling the update / insert event manually if the page is invalid:

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
{
    if ((e.CommandName == RadGrid.UpdateCommandName ||
        e.CommandName == RadGrid.PerformInsertCommandName) && !Page.IsValid)
    {
        e.Canceled = true;
        return;
    }
}

The above event will prevent the update / insert operation if the validation controls have invalidated the page. The Edit form will stay open without the update / insert action taking place.

Regards,
Veli
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Rafael Enriquez
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Veli
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