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#1
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Excel Automation VS.NET2003
after objExcel.Quit I would have
objWorkbook = Nothing objWorkbooks = Nothing objExcel = Nothing or the .Net equivalent. -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... When I create a Windows Forms Application using VB.NET2003 and have that application create and save a workbook, I cannot open the worksheet with Excel until I close the VB application. Steps to reproduce the problem. 1 Create a Windows Forms Application. 2 Add a reference to 'Microsoft Excel 9.0 Object Library'. 3 Add a command button to Form1 (Button1). 4 Add the following code to the form: '***Begin Code*** Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim objExcel As Excel.Application Dim objWorkbook As Excel.Workbook Dim objWorkbooks As Excel.Workbooks objExcel = New Excel.Application objWorkbooks = objExcel.Workbooks objWorkbook = objWorkbooks.Add objWorkbook.SaveAs("C:\TempWorkbook.xls") objExcel.Quit() End Sub '***End Code*** 5 Run the program. 6 Click the button 1 time. 7 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens but the grid area does not display correctly. 8 Close excel. 9 Close the VB application by clicking the x button in the corner of form1. If you click 'Stop Debugging' in the IDE an Excel process will continue to run in Task Manager- Processes Tab. You need to 'End Process' or rebbot to get rid of it. 10 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens the file correctly. |
#2
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Excel Automation VS.NET2003
In vb.6 that works. But in .net the Object Lifetime is
different. I also tried GC.Collect after the objExcel.Quit. http://msdn.microsoft.com/library/default.asp? url=/library/en-us/vbcn7/html/vaconFinalizeDestructors.asp -----Original Message----- after objExcel.Quit I would have objWorkbook = Nothing objWorkbooks = Nothing objExcel = Nothing or the .Net equivalent. -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... When I create a Windows Forms Application using VB.NET2003 and have that application create and save a workbook, I cannot open the worksheet with Excel until I close the VB application. Steps to reproduce the problem. 1 Create a Windows Forms Application. 2 Add a reference to 'Microsoft Excel 9.0 Object Library'. 3 Add a command button to Form1 (Button1). 4 Add the following code to the form: '***Begin Code*** Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim objExcel As Excel.Application Dim objWorkbook As Excel.Workbook Dim objWorkbooks As Excel.Workbooks objExcel = New Excel.Application objWorkbooks = objExcel.Workbooks objWorkbook = objWorkbooks.Add objWorkbook.SaveAs("C:\TempWorkbook.xls") objExcel.Quit() End Sub '***End Code*** 5 Run the program. 6 Click the button 1 time. 7 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens but the grid area does not display correctly. 8 Close excel. 9 Close the VB application by clicking the x button in the corner of form1. If you click 'Stop Debugging' in the IDE an Excel process will continue to run in Task Manager- Processes Tab. You need to 'End Process' or rebbot to get rid of it. 10 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens the file correctly. . |
#3
Posted to microsoft.public.excel.programming
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Excel Automation VS.NET2003
This example shows them releasing the variables:
http://support.microsoft.com/default...b;en-us;303871 and this one http://support.microsoft.com/default...b;en-us;303294 and this one http://support.microsoft.com/default...b;en-us;302094 and here again: http://support.microsoft.com/default...b;en-us;301982 HOWTO: Automate Microsoft Excel from Visual Basic .NET but may be this one has the answer: http://support.microsoft.com/default...b;en-us;317109 PRB: Office Application Does Not Quit After Automation from Visual Studio ..NET Client -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... In vb.6 that works. But in .net the Object Lifetime is different. I also tried GC.Collect after the objExcel.Quit. http://msdn.microsoft.com/library/default.asp? url=/library/en-us/vbcn7/html/vaconFinalizeDestructors.asp -----Original Message----- after objExcel.Quit I would have objWorkbook = Nothing objWorkbooks = Nothing objExcel = Nothing or the .Net equivalent. -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... When I create a Windows Forms Application using VB.NET2003 and have that application create and save a workbook, I cannot open the worksheet with Excel until I close the VB application. Steps to reproduce the problem. 1 Create a Windows Forms Application. 2 Add a reference to 'Microsoft Excel 9.0 Object Library'. 3 Add a command button to Form1 (Button1). 4 Add the following code to the form: '***Begin Code*** Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim objExcel As Excel.Application Dim objWorkbook As Excel.Workbook Dim objWorkbooks As Excel.Workbooks objExcel = New Excel.Application objWorkbooks = objExcel.Workbooks objWorkbook = objWorkbooks.Add objWorkbook.SaveAs("C:\TempWorkbook.xls") objExcel.Quit() End Sub '***End Code*** 5 Run the program. 6 Click the button 1 time. 7 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens but the grid area does not display correctly. 8 Close excel. 9 Close the VB application by clicking the x button in the corner of form1. If you click 'Stop Debugging' in the IDE an Excel process will continue to run in Task Manager- Processes Tab. You need to 'End Process' or rebbot to get rid of it. 10 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens the file correctly. . |
#4
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Excel Automation VS.NET2003
System.Runtime.InteropServices.Marshal.ReleaseComO bject is
the answer. Thank you -----Original Message----- This example shows them releasing the variables: http://support.microsoft.com/default.aspx?scid=kb;en- us;303871 and this one http://support.microsoft.com/default.aspx?scid=kb;en- us;303294 and this one http://support.microsoft.com/default.aspx?scid=kb;en- us;302094 and here again: http://support.microsoft.com/default.aspx?scid=kb;en- us;301982 HOWTO: Automate Microsoft Excel from Visual Basic .NET but may be this one has the answer: http://support.microsoft.com/default.aspx?scid=kb;en- us;317109 PRB: Office Application Does Not Quit After Automation from Visual Studio ..NET Client -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... In vb.6 that works. But in .net the Object Lifetime is different. I also tried GC.Collect after the objExcel.Quit. http://msdn.microsoft.com/library/default.asp? url=/library/en- us/vbcn7/html/vaconFinalizeDestructors.asp -----Original Message----- after objExcel.Quit I would have objWorkbook = Nothing objWorkbooks = Nothing objExcel = Nothing or the .Net equivalent. -- Regards, Tom Ogilvy "Jeff Grundy" wrote in message ... When I create a Windows Forms Application using VB.NET2003 and have that application create and save a workbook, I cannot open the worksheet with Excel until I close the VB application. Steps to reproduce the problem. 1 Create a Windows Forms Application. 2 Add a reference to 'Microsoft Excel 9.0 Object Library'. 3 Add a command button to Form1 (Button1). 4 Add the following code to the form: '***Begin Code*** Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim objExcel As Excel.Application Dim objWorkbook As Excel.Workbook Dim objWorkbooks As Excel.Workbooks objExcel = New Excel.Application objWorkbooks = objExcel.Workbooks objWorkbook = objWorkbooks.Add objWorkbook.SaveAs("C:\TempWorkbook.xls") objExcel.Quit() End Sub '***End Code*** 5 Run the program. 6 Click the button 1 time. 7 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens but the grid area does not display correctly. 8 Close excel. 9 Close the VB application by clicking the x button in the corner of form1. If you click 'Stop Debugging' in the IDE an Excel process will continue to run in Task Manager- Processes Tab. You need to 'End Process' or rebbot to get rid of it. 10 In windows explorer double click the file C:\TempWorkbook.xls. At this point Excel opens the file correctly. . . |
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