Question

从另一个object处理form的{{1}}时exception就像Parameter is not valid

一样

访问第二种表单的代码

        Assembly X = Assembly.LoadFile(Application.StartupPath + "\\Test.dll");
        Form frminv = (Form)X.CreateInstance("Test.Form1");
        frminv.Dispose();

这是表单处理方法（来自Designer.cs）

protected override void Dispose(bool disposing)
    {
        if (disposing && (components != null))
        {
            components.Dispose();
        }
        base.Dispose(disposing);// exception is thrown from here
    }

这是堆栈跟踪

     at System.Drawing.Image.get_FrameDimensionsList()
 at System.Drawing.ImageAnimator.CanAnimate(Image image)
 at System.Drawing.ImageAnimator.ImageInfo..ctor(Image image)
 at System.Drawing.ImageAnimator.Animate(Image image, EventHandler onFrameChangedHandler)
 at System.Windows.Forms.PictureBox.Animate(Boolean animate)
 at System.Windows.Forms.PictureBox.Animate()
 at System.Windows.Forms.PictureBox.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Form.OnVisibleChanged(EventArgs e)
 at System.Windows.Forms.Control.WmShowWindow(Message& m)
 at System.Windows.Forms.Control.WndProc(Message& m)
 at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
 at System.Windows.Forms.ContainerControl.WndProc(Message& m)
 at System.Windows.Forms.Form.WmShowWindow(Message& m)
 at System.Windows.Forms.Form.WndProc(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
 at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
 at System.Windows.Forms.UnsafeNativeMethods.IntDestroyWindow(HandleRef hWnd)
 at System.Windows.Forms.UnsafeNativeMethods.DestroyWindow(HandleRef hWnd)
 at System.Windows.Forms.NativeWindow.DestroyHandle()
 at System.Windows.Forms.Control.DestroyHandle()
 at System.Windows.Forms.Control.Dispose(Boolean disposing)
 at System.Windows.Forms.ContainerControl.Dispose(Boolean disposing)
 at System.Windows.Forms.Form.Dispose(Boolean disposing)
 at ICFTWaveForm.WaveForm.Dispose(Boolean disposing)
 at System.ComponentModel.Component.Dispose()
 at System.Windows.Forms.Control.Dispose(Boolean disposing)
 at System.ComponentModel.Component.Dispose()
 at System.Windows.Forms.Control.Dispose(Boolean disposing)
 at System.ComponentModel.Component.Dispose()
 at System.Windows.Forms.Control.Dispose(Boolean disposing)
 at System.Windows.Forms.ContainerControl.Dispose(Boolean disposing)
 at System.Windows.Forms.Form.Dispose(Boolean disposing)
 at XXXX.frmMain.Dispose(Boolean disposing) in E:\XXXX\XXXX\frmMain.Designer.cs:line 20
 at System.ComponentModel.Component.Dispose()
 at XXXX.TestComponents.OpenComponentForTestting(stComponents TestComponent, stTestStepDetails Test, enExecutionModeTypes Mode, Boolean IsVisibleMode, Int32 nStepIndex, Int32 nTotalSteps) in E:\My Projects\XXXXXXXX\frmMDIContainer.cs:line 3145

会出现什么问题。请帮帮我。

Answer 1

我必须看一下代码才能确定，但也许我可以帮你找到合适的地方......

堆栈跟踪表示在Dispose序列期间正在重新绘制pictureBox中的动画。那么为什么图片盒试图在它应该死的时候这样做呢？

在这种情况下，您可能需要执行以下操作：在处理窗口之前关闭（）窗口，干净地关闭窗口（例如，在调用base.Dispose（）之前禁用图片框中的动画），或者可能还有其他您可以在安全地调用base.Dispose之前在类中创建并需要处理的资源。或者，您可能已经处置了仍然需要的东西（例如，PictureBox试图访问的图像） - 检查处理“组件”将实际处理的内容。

C＃：异常 - 参数无效 - 表单Dispose方法

1 个答案: