Question

i 需要在我的申请中改变母子的背书或背景形象。 i 试图改变背书者,或说明背景形象,它赢得了工作。 i 并尝试以控制的形式进行控制,以获得红.,并改变其背书,结果也零。

Answer 1

http://support.microsoft.com/kb/3 19465“rel=“nofollow noreferer”http://support.microsoft.com/kb/3 19465。

Answer 2

如果你在试图树立形象,那么你会用一种简单的颜色来尝试以下的代码,那么你就可以使用背景分类法。

 MdiClient ctlMDI;
            foreach (Control ctl in this.Controls)
            {
                try
                {
                    ctlMDI = (MdiClient)ctl;

                    // Set the BackColor of the MdiClient control.
                    ctlMDI.BackColor = Color.DarkRed;
                }
                catch (InvalidCastException exc)
                {
                    // Catch and ignore the error if casting failed.
                }
            }

Answer 3

Private ClientControl As MdiClient

    Public Sub New()
        InitializeComponent()

        ClientControl = Nothing
        For Each Ctl As Control In Me.Controls
            ClientControl = TryCast(Ctl, MdiClient)
            If ClientControl IsNot Nothing Then Exit For
        Next
    End Sub

 iN FORM LOAD

ClientControl.BackColor = Color.Cyan

Answer 4

这样做是行之有效的。

foreach (Control control in this.Controls)
{

    // #2
    MdiClient client = control as MdiClient;
    if (!(client == null))
    {
        // #3
        client.BackColor = GetYourColour();
        // 4#
        break;
    }

}

Answer 5

提出 ......

  Public Sub MDIBGColor()
        Dim ctl As Control
        Dim ctlMDI As MdiClient

          Loop through all of the form s controls looking
          for the control of type MdiClient.
        For Each ctl In Me.Controls
            Try

                  Attempt to cast the control to type MdiClient.
                ctlMDI = CType(ctl, MdiClient)

                  Set the BackColor of the MdiClient control.
                ctlMDI.BackColor = Me.BackColor

            Catch exc As InvalidCastException
                  Catch and ignore the error if casting failed.
            End Try
        Next

    End Sub

并将该次改为形式负荷活动

友情链接