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BaseDataBoundControlDesigner.GetEmptyDesignTimeHtml Method

Provides the markup that is used to render the control at design time if the control is empty or if the data source cannot be retrieved.

Namespace:  System.Web.UI.Design.WebControls
Assembly:  System.Design (in System.Design.dll)

protected override string GetEmptyDesignTimeHtml()

Return Value

Type: System.String
The markup used to render the control at design time with an empty data source.

The BaseDataBoundControlDesigner class retrieves sample data that is used for binding purposes at design time before rendering the control. The empty design-time control renders as a placeholder that contains the type name and control name.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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