Selected items in a list box are lost when

I have a window form that opens another form as a modal dialog form. In the modal form, I have C# codes that select all list box items existing in a list box, which works fine. But as soon as the modal form is opened from the first form, all the list box selection is lost. Do you know what I need to do in order to keep the list box items selected? Thanks!

Hi, Try to give a listbox selecting all items code in Form2 constructor after InitializeComponent method calling statement, public Form2() { InitializeComponent(); this.listBox1.SelectionMode=SelectionMode.MultiExtended; for(int i=0;i I hope this will help you. Thanks, Vijay