ListControl.SelectedValue Property
Gets or sets the value of the member property specified by the ValueMember property.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
[BrowsableAttribute(false)] [BindableAttribute(true)] public Object SelectedValue { get; set; }
Property Value
Type: System.ObjectAn object containing the value of the member of the data source specified by the ValueMember property.
| Exception | Condition |
|---|---|
| InvalidOperationException | The assigned value is null or the empty string (""). |
If a property is not specified in ValueMember, SelectedValue returns the results of the ToString method of the object.
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.
The following code example shows the SelectedValue returning the value of the property specified by the ValueMember property. This code is an excerpt from the example shown in the ListControl class overview. See ListControl for the whole code listing.
private void ListBox1_SelectedValueChanged(object sender, EventArgs e) { if (ListBox1.SelectedIndex != -1) { textBox1.Text = ListBox1.SelectedValue.ToString(); // If we also wanted to get the displayed text we could use // the SelectedItem item property: // string s = ((USState)ListBox1.SelectedItem).LongName; } }
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
