This will improve performance in cases where you display a large number of rows to the user and the user only updates few rows.Free counters Added on January 19,2012 Follow Me @vmsdurano A bit About Me Disclaimer The opinions expressed herein are my own personal opinions and does not represent the opinions of my employers.
How Edit Operation works When a user clicks on the pencil image button used for editing, the Grid View enters into Edit mode and the Figure 2 The figure above shows how it looks when the Grid View enters into Edit mode.
For every field, data bound textboxes are displayed.
You can distinguish between standard events and event delegates by the type in the Events table. If the type is Command Delegate, it is a delegate command.
The Sort method in the viewmodel accepts one parameter of string.
Let’s take a look at the implementation below: “Just a heads up: readers should know that Container.
Data Item Index returns the index position in the entire dataset, which is not what you want if you are using paging and you have not used a sproc that pulls only one page of value at a time. Display Index to get the row position on the page being displayed / updated.
This article explains how to perform insert, update and delete operations in ASP. Let us take an example to perform CRUD operations using Entity Framework Database First approach.
Suppose we’ve to work on Customer table having Category ID as foreign key.
If your Page Size is 10 and you've edited the first record on the second page, Data Item Index returns 10 while Display Index returns 0, and since each page only has index values of 0-9, you get an index out of bounds error if you use the Data Item Index to find a Data Key value to use in your update code.
I learned this the hard way.”In this article we learned how to update only the changed rows of the Grid View control by using Ajax calls.
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