/// <summary>
/// Selects or clears the selection for the specified item in a System.Windows.Forms.ListBox.
/// </summary>
/// <param name="lstBox">The listbox parent.</param>
/// <param name="index">The index of the item.</param>
/// <param name="value">The value to set to selected property.</param>
public static void SetSelected(System.Windows.Forms.ListBox lstBox, int index, bool value)
{
if ((index < -1) || (index >= lstBox.Items.Count))
throw new Exception("Invalid property value");
if (lstBox.GetSelected(index) != value)
{
if ((value) && ((lstBox.SelectionMode == SelectionMode.MultiSimple) || (lstBox.SelectionMode == SelectionMode.MultiExtended)))
{
if (selectedIndexList.ContainsKey(lstBox))
selectedIndexList[lstBox] = index;
else
throw new Exception("SelectedIndex property not stored for a MultiSelect ListBox, "
+ "please add a ListBoxHelper to the form and set the property SelectionMode again");
}
lstBox.SetSelected(index, value);
}
}
/// <summary>
/// Returns a value indicating whether the specified item is selected.
/// </summary>
/// <param name="lstBox">The listbox to test.</param>
/// <param name="index">The index of the item to query if it is selected.</param>
/// <returns>True if the item is selected.</returns>
public static bool GetSelected(System.Windows.Forms.ListBox lstBox, int index)
{
return lstBox.GetSelected(index);
}
