BindingSource.SupportsSearching 属性

定义

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

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

属性

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 != true)
    {
        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

适用于