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Grid View control Row Command event will give you the Product ID of the product from the Grid View Rows when user will click any of the button in the Grid View. To handle click event of the buttons in Grid View you need to handle Row Command event of the Grid View control.
Following code will show you how you can get Row Index, Product ID and Command Name of the button when user click any button in the Grid View.
In the following tutorial, I will show you different techniques you can use to display command buttons in Grid View. Command Name Dim current Row Index As Integer = Int32.
For this tutorial I am using Microsoft famous sample database Northwind. Also make sure you are setting Grid View Data Key Fields property to the Primary Key column of the Product Table such as Product ID.
Its implementation in the current scenario is a little lengthy, yet it is quite easy as we have to do a similar type of job with each control; instantiate it, set its text property with is a Button then it creates three buttons for the aforementioned tasks.
It is simple to do; create a button object, set its all properties accordingly, also add the button's click event handler and finally, add it into the control collection of the control (Container) passed as an argument.
Click on the "Advanced" button and check the "Generate INSERT, UPDATE and DELETE statements" checkbox (Figure 3). Now that you have configured the SQL Data Source control let's bind it with a Grid View control. Open its smart tag and configure it as shown in Figure 4.
Here, we set the Data Source of the Grid View to Sql Data Source1. We also enable paging, sorting and editing features of the Grid View.
It also has many different types of fields (columns) such as hyperlinks, images, checkboxes etc. To String()) Dim Product ID As String = Grid View1. Enter the database details as per your setup and click on OK.On the next step select Customer ID, Company Name, Contact Name and Country columns (Figure 2).If it is expensive, this could easily sum up to a large cost. In this example, I am hiding it if the field "Scenario" of the grid shows the text "Actual" for the relevant row of the Row Data Bound event.I almost gave up and just convert my commandfield to a templatefield but I know it can be done so I keep on searching for it. (Although I'm still not sure what the asker meant about the declarative answer.) If this was based on roles you could use the multiview panel but not sure if you could do the same against a property of the record. In your rowdatabound event you can hide or show the button in it.
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Listing 4 is not a Command it means we have to instantiate it with a label as in Grid View's normal mode when each cell text of Grid View's rows is displayed in label.