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HtmlEncode for GridHyperLinkColumn

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Ian
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Ian asked on 13 Aug 2010, 11:40 AM
Hi, Is there any way to configure a GridHyperLinkColumn to HtmlEncode the contents of the DataTextField? Unlike the GridBoundColumn, it doesn't appear to have an HtmlEncode property. What's more, because HyperLink columns don't support databinding, I can't add encoding that way either. The only option I can see is to change the column type to a template column but I'd rather avoid that if possible.

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Tsvetina
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answered on 19 Aug 2010, 08:38 AM
Hello Ian,

The HtmlEncode property is available only for GridBoundColumn and the columns that inherit it. This means that a GridTemplateColumn does not expose that property too. And I believe that using html encoding on a GridHyperlinkColumn would not make sense if the column would not provide a working hyperlink. So, my recommendation is that you use a regular GridBoundColumn for that purpose.

Best wishes,
Tsvetina
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Ian
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answered on 25 Aug 2010, 11:43 AM
Tsvetina,
Hi. Thanks for the reply. I agree that using an encoded value to form the Text property of hyperlink wouldn't normally make much sense. However, in this case the value is derived from a database column that could potentially include untrusted data and the customer doesn't want a malicious script ending up on the page. I can't change the database and I want to avoid having to read the database rows into an intermediate object and encoding the column using a property setter. So what I've done is to change the grid column type to a GridTemplateColumn and then encoded the value using:
  Text='<%# Server.HtmlEncode((string)Eval("ColumnName")) %>'

Regards, Ian
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Tsvetina
Telerik team
answered on 25 Aug 2010, 03:10 PM
Hello Ian,

I understand your concerns but in the current implementation of RadGrid the options are either use a GridBoundColumn-derived columns with HtmlEncode property set, or your approach- a GridTemplateColumn using the .NET HtmlEncode() method.

Sincerely yours,
Tsvetina
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Gopinath
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answered on 27 Nov 2010, 09:04 PM
Hi,

Do you have a list of HtmlEncode supported controls and properties, so we can include them in MS Anit-XSS module config file?

Like u mention that only gridboundcolumns are supported, we need a list of controls and its sub-controls that are supported.

Thanks,

Gopi
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Tsvetina
Telerik team
answered on 02 Dec 2010, 08:19 AM
Hi Gopinath,

The RadControls which use the HtmlEncode property are RadGrid and RadTreeList, more specifically - all their columns that are inherited from GridBoundColumn\TreeListBoundColumn.

Regards,
Tsvetina
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