怎样解决reportViewer在RefreshReport()后，调用PrintDialog()出现的异常问题？

Question

this.reportViewer1.LocalReport.Refresh();
this.reportViewer1.RefreshReport();
this.reportViewer1.PrintDialog();
未处理 System.InvalidOperationException
  Message="对象的当前状态使该操作无效。"
  Source="Microsoft.ReportViewer.WinForms"
  StackTrace:
       在 Microsoft.Reporting.WinForms.ReportViewer.PrintDialog()
       在 WinUI.Form1.button1_Click(Object sender, EventArgs e) 位置 E:\Demo\WinUI\WinUI\Form1.cs:行号 35
       在 System.Windows.Forms.Control.OnClick(EventArgs e)
       在 System.Windows.Forms.Button.OnClick(EventArgs e)
       在 System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       在 System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       在 System.Windows.Forms.Control.WndProc(Message& m)
       在 System.Windows.Forms.ButtonBase.WndProc(Message& m)
       在 System.Windows.Forms.Button.WndProc(Message& m)
       在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       在 System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.Run(Form mainForm)
       在 WinUI.Program.Main() 位置 E:\Demo\WinUI\WinUI\Program.cs:行号 18
       在 System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       在 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       在 System.Threading.ThreadHelper.ThreadStart()
  InnerException: 此问题我在几个月前就碰到过一直没解决
http://topic.csdn.net/u/20090803/09/920f4d85-afd6-4b65-aaac-c1c7c3388373.html/// <summary>
        /// 设置报表
        /// </summary>
        private void SetReport()
        {
            if (reportModel != null)
            {
                if (ReportSource.Count > 0) ReportSource.Clear();
                if (this.reportViewer1.LocalReport.DataSources.Count > 0) this.reportViewer1.LocalReport.DataSources.Clear();               
                ReportSource.Add(reportModel);               
                this.reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("SMAccidentInfo_SimpleReport", ReportSource));
              
                this.reportViewer1.LocalReport.Refresh();
                this.reportViewer1.RefreshReport(); 
              
            }        } private void tsbPrint_Click(object sender, EventArgs e)
        {
            try
            {
                
                SetReport();
                this.reportViewer1.PrintDialog();
              
            }
            catch (Exception ex)
            {
                Sys_Error.WriteError(this, ex);
            }
        }捕捉到 System.InvalidOperationException
  Message="对象的当前状态使该操作无效。"
  Source="Microsoft.ReportViewer.WinForms"
  StackTrace:
       在 Microsoft.Reporting.WinForms.ReportViewer.PrintDialog()
       在 Report.FrmSimpleReport.tsbPrint_Click(Object sender, EventArgs e) 位置 希望高手帮忙看看！

Answer 1

 把 this.reportViewer1.PrintDialog();
 放在 RenderingComplete 事件中试试！