TextBox.AutoCompleteSource 属性

public:
 property System::Windows::Forms::AutoCompleteSource AutoCompleteSource { System::Windows::Forms::AutoCompleteSource get(); void set(System::Windows::Forms::AutoCompleteSource value); };

[System.ComponentModel.Browsable(true)]
[System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.TextBoxAutoCompleteSourceConverter))]
public System.Windows.Forms.AutoCompleteSource AutoCompleteSource { get; set; }

[<System.ComponentModel.Browsable(true)>]
[<System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.TextBoxAutoCompleteSourceConverter))>]
member this.AutoCompleteSource : System.Windows.Forms.AutoCompleteSource with get, set

Public Property AutoCompleteSource As AutoCompleteSource

属性值

AutoCompleteSource 值之一。 这些选项为 AllSystemSources、AllUrl、FileSystem、HistoryList、RecentlyUsedList、CustomSource 和 None。 默认值为 None。

属性

BrowsableAttribute TypeConverterAttribute

例外

示例

下面的代码示例演示如何使用集合作为控件的自动完成自定义源 TextBox 。 此示例将执行下列操作：

• AutoCompleteSource使用 属性使TextBox控件能够接受其自动完成行为的自定义源。

• AutoCompleteCustomSource使用 属性设置值的自定义列表。

• AutoCompleteMode使用 属性设置自动完成候选项的显示方式。

private void Form1_Load(object sender, EventArgs e)
{
    // Create the list to use as the custom source. 
    var source = new AutoCompleteStringCollection();
    source.AddRange(new string[]
                    {
                        "January",
                        "February",
                        "March",
                        "April",
                        "May",
                        "June",
                        "July",
                        "August",
                        "September",
                        "October",
                        "November",
                        "December"
                    });

    // Create and initialize the text box.
    var textBox = new TextBox
                  {
                      AutoCompleteCustomSource = source,
                      AutoCompleteMode = 
                          AutoCompleteMode.SuggestAppend,
                      AutoCompleteSource =
                          AutoCompleteSource.CustomSource,
                      Location = new Point(20, 20),
                      Width = ClientRectangle.Width - 40,
                      Visible = true
                  };

    // Add the text box to the form.
    Controls.Add(textBox);
}

Private Sub Form1_Load(ByVal sender As System.Object, _
                       ByVal e As System.EventArgs) Handles MyBase.Load

    ' Create the list to use as the custom source.
    Dim MySource As New AutoCompleteStringCollection()
    MySource.AddRange(New String() _
                        { _
                            "January", _
                            "February", _
                            "March", _
                            "April", _
                            "May", _
                            "June", _
                            "July", _
                            "August", _
                            "September", _
                            "October", _
                            "November", _
                            "December" _
                        })

    ' Create and initialize the text box.
    Dim MyTextBox As New TextBox()
    With MyTextBox
        .AutoCompleteCustomSource = MySource
        .AutoCompleteMode = AutoCompleteMode.SuggestAppend
        .AutoCompleteSource = AutoCompleteSource.CustomSource
        .Location = New Point(20, 20)
        .Width = Me.ClientRectangle.Width - 40
        .Visible = True
    End With

    ' Add the text box to the form.
    Me.Controls.Add(MyTextBox)
End Sub

注解

AutoCompleteCustomSource使用 、 AutoCompleteMode和 AutoCompleteSource 属性创建一个 TextBox ，通过将输入的前缀与维护源中所有字符串的前缀进行比较，自动完成输入字符串。 这对于经常输入 URL、地址、文件名或命令的控件很有用 TextBox 。

属性的使用 AutoCompleteCustomSource 是可选的，但必须将 属性设置为 AutoCompleteSourceCustomSource 才能使用 AutoCompleteCustomSource。

必须同时使用 AutoCompleteMode 和 AutoCompleteSource 属性。

另请参阅

• AutoCompleteCustomSource
• AutoCompleteMode