Merge pull request #1699 from syncfusion-content/990137-SecurityUG

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

Author: Mohan2401

Document-Processing/Excel/Excel-Library/NET/Security.md

@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}
 
@@ -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 %}