Changing my PPT background causes my code to fail

[medrio]

I have a PPT file that I use as a template, open using Aspose slides then manipulate the objects on the slides to build my full presentation. I need to change the background image on the template presentation. I have tried setting the background to both a new image as well as to a simple solid fill color. In both instances, my code breaks when trying to find a table object on the second slide.

The code opens the file, selects the second slide, iterates throug the shapes on the slide and looks for a table object which exists in the template file. I then add rows to the table from my data set.

I am perplexed as to why changing the background image or color would cause a table object to seemingly disappear.

Any suggestions?

[shakeel.faiz]

Dear medrio,

Please attach your source code and presentation to look into this problem.

[medrio]

Baseline1.ppt is the presentation file that works fine.

[medrio]

This is the updated file that fails.

[medrio]

private void NewBaselineSlide()

{

_varsAdded = 0;

//Instantiate a Presentation from where the slide will be cloned

Presentation presSrc = new Presentation(_templatePath);

//Accessing a slide using its slide position

Slide slide = presSrc.GetSlideByPosition(2);

//Creating SortedList object that is used to store the temporary information

//about the masters of PPT file. No value should be added to it.

System.Collections.SortedList sList = new System.Collections.SortedList();

//Cloning the selected slide at the end of another presentation file

Slide clonedSlide = presSrc.CloneSlide(slide, _currentPresentation.Slides.LastSlidePosition + 1 - STATIC_SLIDE_COUNT, _currentPresentation, sList);

_baselineTable = GetTableFromSlide(clonedSlide);

SetupTableDimensions();

SetupHeaderRow();

}

private Table GetTableFromSlide(Slide slide)

{

Table tbl = null;

int i;

//Iterating through all shapes unless the desired table is found

for (i = 0; i < slide.Shapes.Count; i++)

{

if (slide.Shapes[i] is Table)

{

//in the original file this is found. in the update file this code is never hit and tbl remains NULL

tbl = (Table)slide.Shapes[i];

}

}

MAX_TABLE_WIDTH = 0;

for (i = 0; i < tbl.ColumnsNumber; i++)

MAX_TABLE_WIDTH += tbl.GetColumnWidth(i);

return tbl;

}

[shakeel.faiz]

Did you create the baseline1+-+Copy.ppt by changing the background of baseline1.ppt using MS-PowerPoint? If so, which version of MS-PowerPoint did you use? I think, you have you used MS-PowerPoint 2007, because this problem does not occur if I change a background of baseline1.ppt using MS-PowerPoint 2002.

The problem occurs because table has been converted into a group shape, that’s why, it could not be found.