Creating a Customized Sorting User Interface:
Step 2-Exploring Techniques for Adding the Separator Rows
This step of the VIDEO TUTORIAL will zoom in and show case on various techniques for adding separator rows in the GridView control display that was configured in the previous step with standard paging and sorting interfaces. To implement separator rows in the GridView control display, the records are retrieved programmatically and are bound to the GridView control based on its sort expression. Following which, GridView’s product rows are iterated through to find out where the new category begins, once a new category is found a ‘separator record’ of ProductRow instance is injected by assigning the CategoryID equal to ‘-1’ and rows are programmatically bound to the GridView control for display. However, the previous process becomes more complex since the sorting has to be done programmatically before the data is bound. Therefore, a new technique will be implemented where the ‘separator record’ will be injected into GridView control’s hierarchy after the data is bound and will be explained in the next step. For detailed information and source code for this step, please refer to the original article.

 

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