Populating TreeView Control from XML file

Description:

The blog post demonstrates how to populate TreeView Control using XML file in C#.NET.

The TreeView control has a Nodes collection with root TreeNode objects. Each TreeNode in turn has its own Nodes collection that holds more than one child TreeNode.

<TreeNode object>.Nodes.Add (TreeNode node) method adds a new TreeNode element with a specified text to the end of the current TreeNode collection.

Procedure:

Step 1: Variables Declaration

DataSet set = new DataSet(); //To store Tables from XML Document

TreeNode parent; //store Main Table Names

TreeNode child; //store Contents of Main Table

Listing 1

Step 2: XML file contents tables as shown in below format.

</Customer>

Listing 2

Step 3: Now retrieve the values from XML File and add it to the Nodes Collection of TreeView Control.

//Read Contents of XML Document

set.ReadXml(@"..\..\XMLData.xml");

for (int i = 0; i < set.Tables.Count; i++)

{

//Get the Name of Main Table

parent = treeView1.Nodes.Add(set.Tables[i].TableName);

//Get Contents of Main Table

for (int j = 1; j < set.Tables[i].Rows.Count; j++)

child = parent.Nodes.Add(set.Tables[i].Rows[j][2].ToString());

}