// ----------------------------------------------------------------------------------------
/// <!-- Value -->
/// <summary>
/// Given a combo box and a value select the item in the drop list that matches if any
/// </summary>
/// <remarks>
/// This gets complicated because SelectedValue can not be set or retrieved until after
/// the ComboBox is displayed to the user
/// </remarks>
/// <param name="form">allows no-op if the control is not on the form</param>
/// <param name="drop"></param>
/// <param name="value"></param>
public static void Value(Form form, ref ComboBox drop, object value)
{
if (Scrape.Active(form, drop))
{
if (Is.Null(value))
{
drop.Text = "";
}
else
{
string str = TreatAs.StrValue(value, "");
int oldIndex = drop.SelectedIndex;
drop.SelectedIndex = -1;
string oldText = drop.Text;
drop.Text = "";
// ---------------------------------------------------------------------90
// Try to select by value (this should work under optimal conditions)
// ---------------------------------------------------------------------90
try { drop.SelectedValue = value; }
catch { }
if (drop.SelectedValue == null || drop.SelectedValue.ToString() == "")
{
try { drop.SelectedValue = (object)str; }
catch { }
}
if (drop.SelectedValue == null || drop.SelectedValue.ToString() == "")
{
try { drop.SelectedValue = TreatAs.IntValue(value, -1); }
catch { }
}
// ---------------------------------------------------------------------90
// Try to select item by value, by item and by a sequential search
// ---------------------------------------------------------------------90
if (drop.SelectedIndex < 0)
{
SetByIndex(form, drop, drop.Items.IndexOf(value));
}
if (drop.SelectedIndex < 0)
{
try { drop.SelectedItem = value; }
catch { }
}
if (drop.SelectedIndex < 0)
{
try { drop.SelectedItem = (object)str; }
catch { }
}
if (drop.SelectedIndex < 0)
{
SetByIndex(form, drop, Scrape.FindIndexOf(form, drop, value));
}
// ---------------------------------------------------------------------90
// Give up and just set the text to the value
// ---------------------------------------------------------------------90
if (drop.SelectedIndex < 0)
{
SetByIndex(form, drop, drop.FindStringExact(str));
}
if (drop.SelectedIndex < 0 && str.Length > 6)
{
SetByIndex(form, drop, drop.FindString(str));
}
if (drop.SelectedIndex < 0)
{
if (drop.SelectedText == null || drop.SelectedText == "")
{
try { drop.SelectedText = str; }
catch { }
}
if (drop.Text == null || drop.Text == "")
{
drop.Text = str;
}
}
}
}
}
