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In ASP.Net, GridView Control also provides the functionality to edit and update the data retrieved from the database using CommandField template. You can cancel the action using Cancel Command at the server side with the help of RowCancelingEdit event handler using VB.Net code easily.
In this tutorial we will learn how to use the FindControl function of GridView Control to search the TextBox server controls placed inside the TemplateField and pass its value to the SQL update command to update data in the database.
You can select a row of ASP.Net GridView Control using VB.Net code with postback event of button control or link button control by passing the Command="select". Command property of button or link button control passes the name of command i.e. action to be taken on the clicked row item.
Highlight Row functionality of ASP.Net GridView control can be developed by using the combination of CSS and Javascript code with the help of VB.Net server side code to attach the script with each dynamically generated gridview row item.
Here we will complete the next step of DataBinding using the DataSource property of GridView control. We will use VB.Net for each loop over the rows of GridView control after databinding. VB.Net for each loop will allow using the FindControl method to get the reference of DropDownList control placed inside the ItemTemplate of GridView Control.
SelectedValue property of each DropDownList placed inside the rows of GridView control can be set using the VB.net code at server side with the help of value of order_status_id field of tbl_orders and tbl_order_status. As we discussed in the previous tutorial ASP.Net Gridview DropdownList Column order_status_id is a relational foreign key of tbl_orders table and primary key of tbl_order_status ta
You can edit and update the SelectedValue property of DropDownList nested inside the GridView control with vb.net code using the RowUpdating event of the GridView control. In this tutorial, for learning the Edit and update action on GridView DropDownList SelectedValue we will again consider the SQL Database tables i.e. tbl_orders and tbl_order_status
In the previous tutorial we learnt how to edit and update the SelectedValue of DropDownList placed inside the GridView control separately for each row using RowUpdating event. Here we will learn the VB.Net code to update all the DropDownList selected values placed inside the GridView Control into the SQL database table i.e. tbl_orders all at once with a single click on a link button control.
After designing the HTML layout of GridView control by placing checkbox control in the ItemTemplate next step is to bind the data with GridView control. In this tutorial for ASP.Net GridView checkbox control we have used VB.Net code to connect and bind the data with GridView control using categories table of SQL Northwind database.
The FindControl function with ASP.Net GridView control can be used to access the Checkbox control placed inside the ItemTemplate of TemplateField Column. FindControl function returns the naming container of the server control (e.g. checkbox in this tutorial) who's ID is passed to the function. The VB.Net FindControl function searches the server control within the row items and column of the GridV
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