Data Driven Pages in ArcGIS; not all pages plotting

Question

I am using Data Driven Pages (DDP) in ArcGIS for Desktop 10.3. My pages are indexed with the lables "Page1", "Page2"..."Page12". However only the first ten are showing. From looking into this I am not aware of any such limit of the number of pages. See my index layer below;

OBJECTID * Shape * Shape_Length Shape_Area PAGE
1 Polygon 3883.2122 942341.856 Page1
2 Polygon 6865.951 2912272.508 Page2
3 Polygon 6905.639 2969978.993 Page3
4 Polygon 8350.2668 4357918.976 Page4
5 Polygon 8995.8514 5008438.638 Page5
6 Polygon 5549.911 1905578.347 Page6
7 Polygon 6625.1798 2731887.094 Page7
8 Polygon 3979.3414 983396.9592 Page8
9 Polygon 8625.434 4301756.02 Page9
10 Polygon 8382.0168 4215492.372 Page10
11 Polygon 8305.8166 4290331.162 Page11
12 Polygon 9359.9188 5302510.725 Page12

However the last page that shows in the drawing is Page9; the other shows do not show in the Data Driven Pages Toolbar even after refreshing. See screenshot;

Screenshot of DDP Toolbar

What is the error in my setup or my approach?

Answer 1

When you set up your Data Driven Pages make sure you use a numeric field to sort your pages. If you sort by your page name it'll sort in character order from left-to-right in your field, so 10 will come before 2 - It'll sort it Page1, Page10, Page11, Page2, Page21 etc.:

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If you have a numeric field with each page number in it and set Data Driven Pages to sort on that field, your pages will sort numerically:

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