As the title says, I am making a paging function, because one page in .net corresponds to a background processing program, which feels a little different from Java, so I would like to ask how to pass the values in the variables in the background Go to his corresponding front page:
Background handler a.cs: 
## Front-end display page a.aspx:
How to get these background values during paging?
is now a null value
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You can define a variable in the a.cs file to store the total number of pages
Write a method
GetPageTotalPage(){
return totalPage;
}
In the frontend you can write like this <%=GetPageTotalPage()%>