ComboBox.SelectedIndex Property

public override int SelectedIndex { get; set; }

/** @property */
public int get_SelectedIndex ()

/** @property */
public void set_SelectedIndex (int value)

public override function get SelectedIndex () : int

public override function set SelectedIndex (value : int)

Property Value

This property indicates the zero-based index of the currently selected item in the combo box list. Setting a new index raises the SelectedIndexChanged event.

SelectedIndex, SelectedValue, and FormattingEnabled are related as follows:

• If FormattingEnabled is false, SelectedIndex will not be set to -1 when SelectedValue is blank.

• If FormattingEnabled is true, SelectedIndex will be set to -1 when SelectedValue is blank.

Note
To deselect the currently selected item, set the SelectedIndex to -1. You cannot set the SelectedIndex of a ComboBox item to -1 if the item is a data-bound item.

The following code example show how to use the FindString method and SelectedIndex property. The example is part of a complete example in the ComboBox class overview.

private void findButton_Click(object sender, System.EventArgs e) {
    int index = comboBox1.FindString(textBox2.Text);
    comboBox1.SelectedIndex = index;
}

private void findButton_Click(Object sender, System.EventArgs e)
{
    int index = comboBox1.FindString(textBox2.get_Text());
    comboBox1.set_SelectedIndex(index);
} //findButton_Click

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

.NET Compact Framework