We also need force databinding to occur when then page is loaded, which we’ll handle in Page_Load.The required actions for paging to work are setting the new page index, setting the Data Source, and calling Data Bind (the last two through the Bind Data method).

rowupdating event of gridview in asp net-77

When the Bound Field is in Edit mode, things are a little different.

In that case a Text Box is created and added to the Controls collection for the appropriate cell (and it's the only item added to the Controls collection, so it's Controls[0]).

If we were using a Template Field instead, the compiler translates the markup in the templates to the appropriate types of controls in the same way as the page markup in parsed.

For this example, the Item Template would be transformed into a Literal control, and the Edit Item Template would be transformed into a Literal control, a Text Box, and a Literal control (the literal controls would include the spacing between the Edit Item Template tags and the Text Box tags).

After specifying the query, we add the appropriate sorting. When you bind a Grid View through a Data Source ID, the Grid View will update this value since it is internally tracking the sort expression, so it knows when to switch between ascending and descending.

We can implement it in this way without a performance impact because the data is not actually retrieved from the database until required, so we can build up a chain of queries up to that point and only the end result will be pulled from the database. When manually databinding the Grid View, this will always show ascending, so we need to handle this manually with the following logic: After that we save the new Sort Expression. NET forums is how to deal with exceptions like The Grid View 'Grid View1' fired event Row Editing which wasn't handled.The Grid View 'Grid View1' fired event Page Index Changing which wasn't handled.In addition to that, we’re resetting the Edit Index and Selected Index when the page is changed to avoid cases, for example, where you change pages and are suddenly editing a different item.Bind Data could be called in Page Index Changing, but to show that it the event is raised, we’ve handled that in Page Index Changed.We’re sorting on the appropriate field based on the Sort Expression, and setting the direction based on Sort Direction by calling either the Order By or Order By Descending methods. As with paging, we also reset the Edit Index and Selected Index when sorting.