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C# Excel Shapes.AddPicture

Posted on 2010-08-31
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Last Modified: 2012-05-10
Visual Studeio 2008
I am creating an Excel file and exporting it to PDF.  In the beginning of my code, I add a picture to the top left of the worksheet.  I want to add the picture when I pagebreak.  I need to know how to figure out the "top" value (offset from the top of the page to the current location).  Can anyone assist with this?

Thank you in advance for your help.
Alex
Excel.Application myExcelApplication = new Excel.Application();
                Excel._Workbook myWorkbook;
                Excel._Worksheet mySheet;
                Excel.Range myRange;
                Excel.Range firstRange;
                int currentRow = 0;
mySheet.Shapes.AddPicture(Server.MapPath(imageFile),
                    Office.Core.MsoTriState.msoFalse,
                    Office.Core.MsoTriState.msoTrue,
                    left,
                    top,
                    width,
                    height);

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Question by:alexvdb
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22 Comments
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33571079
can you try something like this?
Excel.Range oRange = (Excel.Range)mySheet.Cells[yourSheetRow,yourSheetCol];
Image oImage = Image.FromFile(Server.MapPath(imageFile));
oRange.set_Item(1,1,oImage);

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Author Comment

by:alexvdb
ID: 33576933
This is close.  I get the string below in the cell.

System.Drawing.Bitmap

Thank you for your help.
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33577100
if the comment helped you, you can rate the comment. Or you want to wait some more time?
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Author Comment

by:alexvdb
ID: 33577168
Well, it hasn't solved my issue yet.  I am not getting the image.
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33577393
are you getting the image in the object "oImage" (in my previous code). Can you do a null check on that? if image is getting, i can check in the function set_Item.
0
 

Author Comment

by:alexvdb
ID: 33577462
I tested for not null and it is not.  Is there perhaps something I could do with Range.AutoFormat to format the object as an image?
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33577608
can you try this?
Excel.Range oRange = (Excel.Range)mySheet.Cells[yourSheetRow,yourSheetCol];
Image oImage = Image.FromFile(Server.MapPath(imageFile));
oRange.set_Item(1,1,oImage);
System.Windows.Forms.Clipboard.SetDataObject(oImage,true);
mySheet.Paste(oRange,imageFile);

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Author Comment

by:alexvdb
ID: 33577711
I got the error below on the SetDataObject.
at System.Windows.Forms.Clipboard.SetDataObject(Object data, Boolean copy, Int32 retryTimes, Int32 retryDelay) at System.Windows.Forms.Clipboard.SetDataObject(Object data, Boolean copy) at InstructorDB.ACICSExcel.MakeExcelFile() in c:\TFS\Westwood Faculty\InstructorDB\ACICSExcel.aspx.cs:line 931
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33577905
oh, Web-forms cannot use the Clipboard I think. let me check any other options
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33578190
can you try this?
Excel.Application myExcelApplication = new Excel.Application();
                Excel._Workbook myWorkbook;
                Excel._Worksheet mySheet;
                Excel.Range myRange;
                Excel.Range firstRange;
                int currentRow = 0;
Excel.Range oRange = (Excel.Range)mySheet.Cells[yourSheetRow,yourSheetCol];
mySheet.Shapes.AddPicture(Server.MapPath(imageFile),
                    Office.Core.MsoTriState.msoFalse,
                    Office.Core.MsoTriState.msoTrue,
                  (float)oRange.Left,
		  (float)oRange.Top,
                    width,
                    height);

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0
 

Author Comment

by:alexvdb
ID: 33578434
I'm getting a rather generic error message on the new code.

at InstructorDB.ACICSExcel.MakeExcelFile() in c:\TFS\Westwood Faculty\InstructorDB\ACICSExcel.aspx.cs:line 946

0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33578858
have you filled the values of row, column in yourSheetRow,yourSheetCol?
can you show me the latest function of yours?
0
 

Author Comment

by:alexvdb
ID: 33579003
Here it is.  I think the cast to float of the range.top and left is what is failing.

Excel.Range oRange = (Excel.Range)mySheet.Cells[currentRow, 1];
mySheet.Shapes.AddPicture(Server.MapPath(imageFile),
                    Office.Core.MsoTriState.msoFalse,
                    Office.Core.MsoTriState.msoTrue,
                    (float)oRange.Left,
                    (float)oRange.Top,
                    width,
                    height);
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33579071
can you cast it to double?
0
 
LVL 23

Accepted Solution

by:
Roshan Davis earned 2000 total points
ID: 33579101
can you try this?
				ThisSheet.Shapes.AddPicture(imageFile,
					Microsoft.Office.Core.MsoTriState.msoFalse,
					Microsoft.Office.Core.MsoTriState.msoTrue,
					System.Convert.ToSingle(oRange.Left.ToString()),
					System.Convert.ToSingle(oRange.Top.ToString()),
					100,
					100);

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Author Comment

by:alexvdb
ID: 33579246
Well, I got an error on thet too.  But, I checked the actual value of top.  It was 540.75.  WHen I tried to set the value of my float (top) I got a message indicateing I need to add a "F" suffix.  Itried this line of code and it worked.
top = 540.75F;
So I added "F" to the convert lines of code like below and it now works.
mySheet.Shapes.AddPicture(imageFile,
                    Microsoft.Office.Core.MsoTriState.msoFalse,
                    Microsoft.Office.Core.MsoTriState.msoTrue,
                    System.Convert.ToSingle(oRange.Left.ToString() + "F"),
                    System.Convert.ToSingle(oRange.Top.ToString() + "F"),
                    100,
                    100);

Thank you so muc for sticking with me on this.  I really appreciate it.
Alex
0
 

Author Comment

by:alexvdb
ID: 33579268
Check that I ran the wrong file.  I need to figure out how to get the "F" suffix in there somehow.
0
 

Author Comment

by:alexvdb
ID: 33579429
OK.  Here is the code that workds...
Single left = (Single)(1.5);
Single top = (Single)(1.5);
top = System.Convert.ToSingle(oRange.Top.ToString());
mySheet.Shapes.AddPicture(Server.MapPath(imageFile),
                    Office.Core.MsoTriState.msoFalse,
                    Office.Core.MsoTriState.msoTrue,
                    left,
                    top,
                    width,
                    height);

Thanks again.
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 33580946
I think you have used some of the code that is mentioned in my comment, that deserves some points :)
0
 

Author Comment

by:alexvdb
ID: 33581746
roshmon,  
You deserve all of the credit or points or what ever.  It was not my intention to claim anythin.  My only intention was to mark the last comment as the one that work by setting the top variable with System.Convert before using it in the AddShapes.  You get all of the kudos.  Can you tell me how I can correct this?

Thank you.
0
 

Author Closing Comment

by:alexvdb
ID: 33586445
roshmon, you were most helpful and I appreciate the fact that you stuck with me on this.

Thank you very much.
0

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