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Items collection cannot be modified when the DataSource property is set.

Posted By:      Posted Date: September 13, 2010    Points: 0   Category :Windows Application
I am having two listboxes which performs Drag and Drop, when i drag and leave on to second listbox I am getting the error: Items collection cannot be modified when the DataSource property is set. code: using     System; using     System.Collections.Generic; using     System.ComponentModel; using     System.Data; using     System.Drawing; using     System.Linq; using     System.Text; using     System.Windows.Forms; namespace     WindowsControlEx8 {     public partial class Form1 : Form {     List<Colors> colors = new List<Colors>() {     new Colors{colorName="Red"},     new Colors{colorName="Green"},     new Colors{colorName="Black"},     new Colors{colorName="White"},     new Colors{colorName="Orange"} };         public Form1() { InitializeComponent();   }     private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { }     private void button1_Click(object sender, EventArgs e) {     var c = from c1 in colors     select c1.colorName; listBox1.DataSource = c.ToList();   } &nb

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