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Getting page object using Index

Aspose.Diagram Product Family
#1

Hello


Iam using Aspose Diagram for java 5.7.0 with Aspose Total License.

Is there any way to extract page from visio diagram using Page Index.

Example :
If I have 7 pages within my visio document each have index 0,1–upto 6 same as in Array.
Is there any way to get pages directly based on their indices.
As currently through the documentation I could find 2 methods :


Regards
Shubhi
#2

Hi Shubhi,


Thank you for contacting support. Yes, the version 5.7.0 has support of getting a page object by its index. Please use these lines of code:

[Java]
// Call the diagram constructor to load diagram from a VDX file
Diagram diagram = new Diagram(“Drawing1.vdx”);

// Set page index
int pageid = 2;
// Get page object by index
Page page2 = diagram.getPages().get(pageid);

#3

Hello


Page index is being set randomly.

Kindly find the example i am trying it is giving me null pointer exception As Page Id’s that are being assigned to pages within Visio Diagram not in sequence .

PFA Source Code file :AsposeVdxIssue.java
Input Diagram MeetRoom_AddedPAge.vsd

Regards
Shubhi
#4

Hi Shubhi,

Thank you for supplying source diagram and code. The null reference error occurred because the code is passing page id 1 to the getPage method and there is no available page with id 1 in the Visio diagram. Please use “get” instead of the “getPage” method. Please check this modified code:

[Java]

Diagram diagram = new Diagram(“c:\temp\MeetRoom_AddedPAge.vsd”);

// Set page index
for(Page page:(Iterable)diagram.getPages())
{
System.out.println(page.getID());
}

for(int i=0;i<diagram.getPages().getCount();i++)
{
[//System.out.println](https://system.out.println/)(diagram.getPages().getPage(i).getName());
System.out.println(diagram.getPages().get(i).getName());
}