DrawItemEventArgs.State 屬性

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

取得所繪製項目的狀態。

public:
 property System::Windows::Forms::DrawItemState State { System::Windows::Forms::DrawItemState get(); };

public System.Windows.Forms.DrawItemState State { get; }

member this.State : System.Windows.Forms.DrawItemState

Public ReadOnly Property State As DrawItemState

屬性值

DrawItemState

DrawItemState，表示所繪製項目的狀態。

範例

下列程式碼範例示範此成員的使用。 在此範例中，事件處理常式會報告事件發生次數 ListBox.DrawItem 。 此報告可協助您瞭解事件發生的時間，並可協助您進行偵錯。

若要執行範例程式碼，請將它貼到包含名為 ListBox1 之型 ListBox 別實例的專案。 然後確定事件處理常式與事件相關聯 ListBox.DrawItem 。

private void ListBox1_DrawItem(Object sender, DrawItemEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "BackColor", e.BackColor );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Bounds", e.Bounds );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Font", e.Font );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ForeColor", e.ForeColor );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Graphics", e.Graphics );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Index", e.Index );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "State", e.State );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "DrawItem Event" );
}

Private Sub ListBox1_DrawItem(sender as Object, e as DrawItemEventArgs) _ 
     Handles ListBox1.DrawItem

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "BackColor", e.BackColor)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Bounds", e.Bounds)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Font", e.Font)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ForeColor", e.ForeColor)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Graphics", e.Graphics)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Index", e.Index)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "State", e.State)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"DrawItem Event")

End Sub

備註

這個屬性值可以是列舉成員的組合 DrawItemState 。 成員可以使用位運算子來結合。

另請參閱

• DrawItemState