語言

BindingSource.SupportsSearching 屬性

定義

會得到一個值,表示資料來源是否支援使用該 Find(PropertyDescriptor, Object) 方法進行搜尋。

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

屬性值

true若列表為 aIBindingList,且支援使用Find該方法搜尋;否則,。 false

實作

屬性

範例

以下程式碼範例示範如何使用成員。SupportsSearching 完整範例請參見課程總覽主題。

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

備註

若資料來源非 ,IBindingListSupportsSearching則 總是返回 false。

適用於