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<< System.XML WCF, WS, SOAP >>

By	Sonu Kapoor
First Posted	02/20/2005
Times viewed	203

How to bind a XML File to a DropDownList?

Summary How to bind a XML File to a DropDownList?

Binding a XML file to a drop down list can be sometimes very useful. Especially in the case, if you want to fill the drop down by default with some data from a XML file for further processing. The drop down list provides the DataBind function which can bind the XML. However prior to that you will need to read the XML file with a XmlDocument object and apply the required nodes to a XmlNodeList class object. After that you just need to set the values for the properties DataTextField and DataValueField. The following example illustrates that.

Additional information
private void Page_Load(object sender, System.EventArgs e) { XmlDocument doc = new XmlDocument(); doc.Load(Server.MapPath("topxml.xml")); XmlNodeList nodeList = doc.SelectNodes("/CategoryList/Category"); DropDownList1.DataSource = ds; DropDownList1.DataTextField = "MainCategory"; DropDownList1.DataValueField ="MainCategory"; DropDownList1.DataBind(); }

Further additional information
<?xml version="1.0" encoding="utf-8"?> <CategoryList> <Category> <MainCategory>ASP.NET</MainCategory> <SubCategory ID="401">Basic</SubCategory> <SubCategory ID="402">Advanced</SubCategory> <SubCategory ID="403">Intermediate</SubCategory> <Description>Add asp.net articles here</Description> <Active>Yes</Active> </Category> <Category> <MainCategory>XML</MainCategory> <SubCategory ID="301">How to's</SubCategory> <Description>List of XML articles.</Description> <Active>Yes</Active> </Category> <Category> <MainCategory>C#</MainCategory> <SubCategory ID="201">C# I/O</SubCategory> <Description>List of C# articles.</Description> <Active>Yes</Active> </Category> <Category> <MainCategory>VC++</MainCategory> <SubCategory ID="101">MFC</SubCategory> <Description>A list of VC</Description> <Active>Yes</Active> </Category> </CategoryList>

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