Database table to XML file

Here I give an example of how we can create a XML file from a database table.

In this example, I had populated a dropdownlist with the tables in a database. Then I choose a table from the list, which needs to be generated as a XML file.

Listing all the tables in the Database

Listing all the tables in the Database

We will generate the XML file in the ‘SelectedIndexChanged’ event of the DropDownList.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
DataSet ds = new DataSet();

//Create the connection object
SqlConnection sqlConn = new SqlConnection(ConfigurationManager.ConnectionStrings[ "LMSConnectionString"].ToString());


string strQuery = "Select * from " + DropDownList1.SelectedItem.Text;

SqlCommand sqlCmd = new SqlCommand(strQuery, sqlConn);
SqlDataAdapter sqlAdptr = new SqlDataAdapter(sqlCmd);
sqlAdptr.Fill(ds);


XmlDataDocument doc = new XmlDataDocument(ds);


doc.Save(MapPath(DropDownList1.SelectedItem.Text+".xml"));
//The name of the XML file to be generated
}
catch{ }
}

The above code will generate an XML file with the same name of the database table selected, in the root directory.