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Prevent WPF Reportviewer from Rerendering when Hidden

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Maurizio
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Maurizio asked on 22 Nov 2013, 02:23 PM
Hi Telerik Team,

i have a WPF application with several Reportviewers,
each in a RadTabItem (inside an RadTabControl).

The Report in the active (visible) RadTabItem is rendered properly. However, when the user selects another RadTabItem
(so the ReportViewer is hidden) the ReportViewer loses its rendering. When the RadTabItem with the reportviewer inside is selected again,
(so the ReportViewer becomes visible again) the Report is rendered newly from the scratch.

This is very annoying because a) rendering takes some time and b) i render a reportbook, so the second time the ReportViewer renders the report, the position of the selected report is lost.

Is there any possibilty to prevent the ReportViewer from losing the rendering when hidden? Some kind of caching..

Best regards.

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Stef
Telerik team
answered on 22 Nov 2013, 05:19 PM
Hi Thomas,

Try to set the WPF RadTabControl.IsContentPreserved property to true. Thus the WPF ReportViewer will not be unloaded when it is not visible(the selected tab is changed).

Let us know if you have any further questions.

Regards,
Stef
Telerik

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