以下是源代碼，第一次點擊按鈕，展示報表資料正常。但是再點擊按鈕，資料變化后，報表中顯示還是第一次的不重繪。
求解，怎么破？
Dim Myreport = New Mod_MatbarCode()
Myreport.Report_MatName.Text = A_txt_MatName.Text
Myreport.Report_BarCode.Text = A_txt_MatID.Text
Myreport.Report_MatType.Text = A_txt_MatType.Text
Dim printControl1 = New PrintControl()
printControl1.PrintingSystem = Myreport.PrintingSystem
Dim PrintBarManager = New PrintBarManager()
PrintBarManager.Form = printControl1
PrintBarManager.Initialize(printControl1)
PrintBarManager.MainMenu.Visible = False
PrintBarManager.AllowCustomization = False
printControl1.PrintingSystem.SetCommandVisibility(PrintingSystemCommand.Print, DevExpress.XtraPrinting.CommandVisibility.Toolbar)
Myreport.CreateDocument()
GC_MatBarcode.Controls.Add(printControl1)
printControl1.Dock = DockStyle.Fill
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標籤：VB.NET
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