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990137-Modify file streams of C# [Cross-platform] in XlsIO UG #1699

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990137-Modify file streams of C# [Cross-platform] in XlsIO UG #1699

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88 changes: 20 additions & 68 deletions Document-Processing/Excel/Excel-Library/NET/Security.md
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Original file line number Diff line number Diff line change
Expand Up @@ -36,24 +36,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputExcel.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputExcel.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//Encrypt workbook with password
workbook.PasswordToOpen = "syncfusion";

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/EncryptedWorkbook.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/EncryptedWorkbook.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -141,24 +135,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/EncryptedWorkbook.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open encrypted Excel document with password
IWorkbook workbook = application.Workbooks.Open(inputStream, ExcelParseOptions.Default, false, "syncfusion");
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/EncryptedWorkbook.xlsx"), ExcelParseOptions.Default, false, "syncfusion");
IWorksheet worksheet = workbook.Worksheets[0];

//Decrypt workbook
workbook.PasswordToOpen = string.Empty;

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/DecryptedWorkbook.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/DecryptedWorkbook.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -204,24 +192,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputWorkbook.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputWorkbook.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//Protect workbook with password
workbook.Protect(true, true, "syncfusion");

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/ProtectedWorkbook.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/ProtectedWorkbook.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -271,24 +253,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputWorkbook.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputWorkbook.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//UnProtect workbook with password
workbook.Unprotect("syncfusion");

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/UnProtectedWorkbook.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/UnProtectedWorkbook.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -332,24 +308,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputData.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputData.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//Protect worksheet with multiple options
worksheet.Protect("Protect", ExcelSheetProtection.FormattingCells | ExcelSheetProtection.LockedCells | ExcelSheetProtection.UnLockedCells);

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/ProtectedSheet.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/ProtectedSheet.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -472,17 +442,14 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Excel2013;
FileStream inputStream = new FileStream("ChartSheet.xlsx", FileMode.Open, FileAccess.Read);
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open("ChartSheet.xlsx");
IChart chart = workbook.Charts[0];

//Protect chart sheet
chart.Protect("syncfusion", ExcelSheetProtection.All);

//Saving the workbook as stream
FileStream stream = new FileStream("Output.xlsx", FileMode.Create, FileAccess.ReadWrite);
workbook.SaveAs(stream);
stream.Dispose();
//Saving the workbook
workbook.SaveAs("Output.xlsx");
}
{% endhighlight %}

Expand Down Expand Up @@ -526,24 +493,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/ProtectedWorksheet.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/ProtectedWorksheet.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//UnProtect worksheet with password
worksheet.Unprotect("syncfusion");

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/UnProtectedSheet.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/UnProtectedSheet.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down Expand Up @@ -589,17 +550,14 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Excel2013;
FileStream inputStream = new FileStream("Sample.xlsx", FileMode.Open, FileAccess.Read);
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open("Sample.xlsx");
IChart chart = workbook.Charts[0];

//Unprotect chart sheet
chart.Unprotect("syncfusion");

//Saving the workbook as stream
FileStream stream = new FileStream("Output.xlsx", FileMode.Create, FileAccess.ReadWrite);
workbook.SaveAs(stream);
stream.Dispose();
//Saving the workbook
workbook.SaveAs("Output.xlsx");
}
{% endhighlight %}

Expand Down Expand Up @@ -645,24 +603,18 @@ using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputData.xlsx"), FileMode.Open, FileAccess.ReadWrite);

//Open Excel
IWorkbook workbook = application.Workbooks.Open(inputStream);
IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputData.xlsx"));
IWorksheet worksheet = workbook.Worksheets[0];

//Unlock cell
worksheet["A1"].CellStyle.Locked = false;

#region Save
//Saving the workbook
FileStream outputStream = new FileStream(Path.GetFullPath("Output/LockedCells.xlsx"), FileMode.Create, FileAccess.Write);
workbook.SaveAs(outputStream);
workbook.SaveAs(Path.GetFullPath("Output/LockedCells.xlsx"));
#endregion

//Dispose streams
outputStream.Dispose();
inputStream.Dispose();
}
{% endhighlight %}

Expand Down