語言

DrawItemEventArgs.State 屬性

定義

命名空間:
System.Windows.Forms
組件:
System.Windows.Forms.dll
來源:
DrawItemEventArgs.cs
來源:
DrawItemEventArgs.cs
來源:
DrawItemEventArgs.cs
來源:
DrawItemEventArgs.cs
來源:
DrawItemEventArgs.cs

會取得正在繪製物品的狀態。

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

那 DrawItemState 代表被抽取物品的狀態。

範例

以下程式碼範例展示了此成員的使用方式。 在這個例子中，事件處理者會回報事件 ListBox.DrawItem 的發生情況。 此報告能幫助您了解事件發生時機，並協助除錯。

要執行範例程式碼，請將其貼到包含一個名為 ListBox的實例ListBox1的專案中。 然後確保事件處理程式與事件 ListBox.DrawItem 相關聯。

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

此性質值可為列 DrawItemState 舉成員的組合。 成員可透過位元運算子組合。

適用於

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