ImageButton in GridAttachmentColumn

[Bernard]

Hello,
I'm using a RadGrid with a GridAttachmentColumn (ButtonType ImageButton) for download.
Everything is Ok and It works well.
But some of the items of my Grid don't have attached file.
So I would like to set the "visible property" of the button to false when there is no attached file.
Is there a way to do that ?
Thanks a lot.
Bernard

[Cori]

Hello Bernard,

You have to handle the ItemDataBound event and then set the text to blank or clear the controls in that cell, whatever works for yur. Like so:

protected void grdTest_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            GridDataItem grdItem = (GridDataItem)e.Item;
            grdItem.Cells[0].Text = "";

            // OR

            grdItem.Cells[0].Controls.Clear();
        }
    }

For the Cells collection you need to set it the correct column index for the attachment column.

I hope that helps.

[Bernard]

Hi Cori,

Many thanks for your answer.

I've had already tried this way.
When I inspect the grdItem.Cells[0].Controls, this collection is empty.
and grdItem.Cells[0].Text = "" has no effect.
I thought that It was not the right handler
So I have tried with itemCreated, but no more success...

Regards
Bernard

[Nikolay Rusev]

Hello Bernard,

From Cori's code grdItem has indexer that accepts as parameter column UniqueName. Thus you can use the following:
grdItem["YOUR COLUMN UniqueName"] - this will return the cell for that column in the current data item.

Regards,
Nikolay
the Telerik team

[Bernard]

 

Hello Nikolay, Hello Cori,

Thanks you for your insistence ! It's works !
It's all my fault !
When I built the GridAttachmentColumn, I set "DataTextField property" to "boo0" and the "UniqueName property" to "AttachmentColumn" (copy/paste from an example...)
And then when I asked grdItem["boo0"], there were nothing !
So I have deleted "UniqueName property" so It take the value of "DataTextField property" value
.
Silly mistake !

Many Thanks to you both
Bernard