BindingSource.SupportsSearching 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

Source:

BindingSource.cs

获取一个值，它指示数据源是否支持使用 Find(PropertyDescriptor, Object) 方法进行搜索。

public:
 virtual property bool SupportsSearching { bool get(); };

[System.ComponentModel.Browsable(false)]
public virtual bool SupportsSearching { get; }

[<System.ComponentModel.Browsable(false)>]
member this.SupportsSearching : bool

Public Overridable ReadOnly Property SupportsSearching As Boolean

属性值

Boolean

如果列表是 IBindingList 并且支持使用 Find 方法进行搜索，则为 true；否则为 false。

实现

SupportsSearching

属性

BrowsableAttribute

示例

下面的代码示例演示如何使用 SupportsSearching 成员。 有关完整示例，请参阅类概述主题。

private void button1_Click(object sender, EventArgs e)
{
    if (!binding1.SupportsSearching)
    {
        MessageBox.Show("Cannot search the list.");
    }
    else
    {
        int foundIndex = binding1.Find("Name", textBox1.Text);
        if (foundIndex > -1)
            listBox1.SelectedIndex = foundIndex;
        else
            MessageBox.Show("Font was not found.");
    }
}

    Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
        Handles button1.Click

        If binding1.SupportsSearching <> True Then
            MessageBox.Show("Cannot search the list.")
        Else
            Dim foundIndex As Integer = binding1.Find("Name", textBox1.Text)
            If foundIndex > -1 Then
                listBox1.SelectedIndex = foundIndex
            Else
                MessageBox.Show("Font was not found.")
            End If
        End If

    End Sub
End Class

注解

如果数据源不是 ，IBindingListSupportsSearching则始终返回 false。