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Crash when adding filter on a calculated column

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This is a migrated thread and some comments may be shown as answers.
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Richard asked on 02 Sep 2015, 08:37 PM
# Context
- Using RadGridView
- Having a column named "MyDataColumn", which contains different decimal values, including zero.
- Using UI, add filter on "MyDataColumn" : "Greater than: 0"
- Added a calculated column named "MyCalculatedColumn", using expression "MyDataColumn / MyDataColumn".
- Note that, at this point, it doesn't crash since we added the "Greater than: 0" filter on "MyDataColumn" ... without that filter, it will crash, as we all know division by zero is impossible.

# Behavior
- Using UI, add a filter on "MyCalculatedColumn"
- Application crash

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Dess | Tech Support Engineer, Principal
Telerik team
answered on 07 Sep 2015, 07:39 AM
Hello Richard,

Thank you for writing.
When you use a calculated column, note that you should set a valid expression. Hence, you should avoid division by zero. When the expression is correct, no error occurs on my end with the specified version. Here is my sample code snippet. The attached gif file illustrates the behavior on my end:
private void Form1_Load(object sender, EventArgs e)
    GridViewDecimalColumn col = new GridViewDecimalColumn("Calculated Column");
    radGridView1.Columns["Calculated Column"].Expression = "IIF(ReorderLevel > 0, ReorderLevel/ReorderLevel, 0)";
    this.radGridView1.EnableFiltering = true;

I have attached my sample project as well. If you are still experiencing any further issues, please specify the exact steps how to reproduce the problem with the provided project. Thus, we would be able to investigate the precise case and assist you further. Thank you.

Should you have further questions I would be glad to help.
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Dess | Tech Support Engineer, Principal
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