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DropDownList::VerifyMultiSelect Method

Always throws an HttpException exception because multiple selection is not supported for the DropDownList control.

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

protected public:
virtual void VerifyMultiSelect() override

ExceptionCondition
HttpException

In all cases.

The DropDownList control does not support multiple selections and throws an HttpException exception.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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