In this article we create a Gridview from database and add some additional operations such a add, edit and delete data in the Grid View control. In the previous article , we learned how to create a simple Grid View at runtime .
As the values are inserted into an Ordered Dictionary - you can use the field names to access the changed data 2. There are multiple ways in which one can get the data from the current row that is being edited in a Grid View. Using "Extract Values From Cell": This is an easy way to get all the values from the current row.Now we want to edit the department for selected employee.So now we added a drop-down list under edit template, which will display only on edit mode. This is a simple task, we made a common function `gv Bind()` which binds our Gridview control with data.In order to develop a test web form create a new web site in VS. Set various properties of the Bound Fields as shown in the following table: Here, we call Bind Grid() method if the web form is being served as a result of first request.
The Bind Grid() method is our own function that we will create later on.
In order to implement paging you need to set Allow Paging property of the Grid View control to True. There are two events of Grid View that are related to paging.
They are: The former event is raised before the current page changes and the later is raised after the page has changed. Write the following code in the Page Index Changing event of the Grid View.
the good old problem of getting the data from the row that is being currently edited within a Grid View. Accessing the "Controls": This method gets you access to the control in the Grid View, which might be useful based on what you are doing.
Obviously the simplest method is to use Data Key Names on the Grid View and then you should have the data in your Grid View Update Event Args as part of e. (In the following example, I cast to a Check Box as I know I have a checkbox at the col Index You Are Interested In - you should cast to whatever control you have in that column).
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.