Now let’s create a method for executing the Update or Insert.
Six of those paramaters basically comes from the Text Box values that were entered in the page. Invalid Cast Exception: Unable to cast object of type 'System.
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There are many articles and tutorials around that illustrate the use of Grid View control along with the new Data Source Controls.
When attached with a Data Source control Grid View performs tasks such as paging, sorting and editing automatically i.e. However, at times you require to bind the Grid View with a Data View or Data Table directly.
A static method is callable on a class even when no instance of the class has been created.
If any instances of the class are created then they cannot be used to access the static member. This static method can be The Enable Page Methods property of the Script Manager Control indicates whether public static page methods in an ASP. The Enable Page Methods attribute must be added on the Script Manager tag as true.
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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.
Fortunately Grid View can also be used without attaching with the Data Source Controls. In this article we will see how paging, sorting and editing can be implemented in a Grid View control that is bound with a Data View (or Data Table) directly.
This calls for some extra coding from developer's end. As an example we are going to use Employees table of the Northwind database. Add three Bound Fields and a Command Field to the Grid View with the help of Fields dialog (see below).