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ToolStripTextBox.AutoCompleteSource Property

Note: This property is new in the .NET Framework version 2.0.

Gets or sets a value specifying the source of complete strings used for automatic completion.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public AutoCompleteSource AutoCompleteSource { get; set; }
/** @property */
public AutoCompleteSource get_AutoCompleteSource ()

/** @property */
public void set_AutoCompleteSource (AutoCompleteSource value)

public function get AutoCompleteSource () : AutoCompleteSource

public function set AutoCompleteSource (value : AutoCompleteSource)

Property Value

One of the AutoCompleteSource values. The default is None.

Use the AutoCompleteCustomSource, AutoCompleteMode, and AutoCompleteSource properties to create a ToolStripTextBox that automatically completes input strings by comparing the prefix being entered to the prefixes of all strings in a maintained source. This is useful for ToolStripTextBox controls in which URLs, addresses, file names, or commands will be frequently entered.

The use of the AutoCompleteCustomSource property is optional, but you must set the AutoCompleteSource property to CustomSource in order to use AutoCompleteCustomSource.

You must use the AutoCompleteMode and AutoCompleteSource properties together.

The following code example demonstrates the syntax for setting various ToolStripTextBox common property settings, including the AutoCompleteSource property .

// This code example demonstrates the syntax for setting
// various ToolStripTextBox properties.
toolStripTextBox1.AcceptsReturn = true;
toolStripTextBox1.AcceptsTab = true;
toolStripTextBox1.AutoCompleteCustomSource.AddRange(new string[] {
"This is line one.",
"Second line.",
"Another line."});
toolStripTextBox1.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend;
toolStripTextBox1.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.CustomSource;
toolStripTextBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
toolStripTextBox1.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
toolStripTextBox1.HideSelection = false;
toolStripTextBox1.MaxLength = 32000;
toolStripTextBox1.Name = "toolStripTextBox1";
toolStripTextBox1.ShortcutsEnabled = false;
toolStripTextBox1.Size = new System.Drawing.Size(100, 25);
toolStripTextBox1.Text = "STRING1\r\nSTRING2\r\nSTRING3\r\nSTRING4";
toolStripTextBox1.TextBoxTextAlign = System.Windows.Forms.HorizontalAlignment.Center;

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

Supported in: 2.0