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TreeNodeCollection.Item Property (Int32)

Gets or sets the TreeNode at the specified indexed location in the collection.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public virtual TreeNode this[
	int index
] { get; set; }

Parameters

index
Type: System.Int32
The indexed location of the TreeNode in the collection.

Property Value

Type: System.Windows.Forms.TreeNode
The TreeNode at the specified indexed location in the collection.

ExceptionCondition
ArgumentOutOfRangeException

The index value is less than 0 or is greater than the number of tree nodes in the collection.

To assign TreeNode objects to a specific location, or to retrieve them from the TreeNodeCollection, you can reference the collection object with a specific index value. The index value of the TreeNodeCollection is a zero-based index.

The following code example removes the first TreeNode from a TreeView if its TreeNode.Text property is set to "Node0". When a Button is clicked, the first TreeNode in the TreeView is deleted using the RemoveAt method. This example requires that you have created a TreeView and a Button on a Form. The first TreeNode in your TreeView should have a text property of "Node0."


private void button2_Click(object sender, EventArgs e)
{
   // Delete the first TreeNode in the collection 
   // if the Text property is "Node0." 
   if(this.treeView1.Nodes[0].Text == "Node0")
   {
      this.treeView1.Nodes.RemoveAt(0);
   }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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