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Removing/Hiding a GridItem inside of _ItemCreated

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This is a migrated thread and some comments may be shown as answers.
Dmitri
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Dmitri asked on 16 Dec 2015, 02:10 PM

I have a dynamically loaded grid (automatic column generation, data table as a source) and currently I use the code below to catch the rows as they are created and compare their content to the previous row to track changes in the data. If nothing changed i want to hide the row from the grid. Based on everything i have read the code below should work properly and it does for highlighting column changes BUT for some reason its ignoring the e.Item.Visible setting and still showing rows that I have set to hidden. Thanks in advance!

01.System.Data.DataTable dt = null;
02.int rowCnt = 0;
03.List<int> colsNotToTrack = new List<int>();
04.protected void rgResults_ItemCreated(object sender, GridItemEventArgs e)
05.{
06.    if (compareLines && e.Item is GridDataItem)
07.    {
08.        if (rowCnt > 0)
09.        {
10.            bool changed = false;
11.            for (int i = 2; i < e.Item.Cells.Count; i++)
12.            {
13.                if (colsNotToTrack.Contains(i))
14.                    continue;
15.                if (dt.Rows[rowCnt][i - 2].ToString() != dt.Rows[rowCnt - 1][i - 2].ToString())
16.                {
17.                    e.Item.Cells[i].BackColor = System.Drawing.Color.LightSalmon;
18.                    changed = true;
19.                }
20.            }
21.            e.Item.Visible = changed;
22.        }
23.        rowCnt++;
24.    }
25.     
26.}

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Kostadin
Telerik team
answered on 21 Dec 2015, 08:43 AM
Hi Dmitri,

Please try using Display property instead of Visible. This should hide the rows correctly on ItemCreated event handler.

Regards,
Kostadin
Telerik
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Dmitri
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Kostadin
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