VisualStyleRenderer.IsElementDefined Method
Determines whether the specified visual style element is defined by the current visual style.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Parameters
- element
- Type: System.Windows.Forms.VisualStyles.VisualStyleElement
A VisualStyleElement whose class and part combination will be verified.
Return Value
Type: System.Booleantrue if the combination of the ClassName and Part properties of element are defined; otherwise, false.
| Exception | Condition |
|---|---|
| InvalidOperationException |
The operating system does not support visual styles. -or- Visual styles are disabled by the user in the operating system. -or- Visual styles are not applied to the client area of application windows. |
This method checks the value of the IsSupported property internally.
The following code example demonstrates how to use the IsElementDefined method to determine whether to initialize a VisualStyleRenderer to a given VisualStyleElement. This code example is part of a larger example provided for the VisualStyleRenderer class overview.
// Set the VisualStyleRenderer to a new element. private bool SetRenderer(VisualStyleElement element) { if (!VisualStyleRenderer.IsElementDefined(element)) { return false; } if (renderer == null) { renderer = new VisualStyleRenderer(element); } else { renderer.SetParameters(element); } return true; }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
