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TreeView::ShowLines Property

Gets or sets a value indicating whether lines connecting child nodes to parent nodes are displayed.

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

public:
property bool ShowLines {
	bool get ();
	void set (bool value);
}
<asp:TreeView ShowLines="True|False" />

Property Value

Type: System::Boolean
true to display lines connecting nodes; otherwise, false. The default is false.

Use the ShowLines property to specify whether the lines that are connecting child nodes to parent nodes are displayed. When this property is set to true, the TreeView control searches the Web-accessible folder that is specified by the LineImagesFolder property for the line images.

NoteNote

If the LineImagesFolder property is not set, the TreeView control will use the built-in, default images (20 x 20 pixels).

The value of this property is stored in view state.

The following code example demonstrates how to use the ShowLines property to display lines connecting nodes in the TreeView control. Be sure to use the Line Designer tool to create a set of line images and place them in a folder named LineImages within the directory for the sample application.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.
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