ButtonField class in ASP.NET

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ButtonField is very well known field of ASP.NET Gridview control.
We have seen how to use element to display select, edit and delete buttons in a GridView control. However, if we wish to provide buttons which perform additional custom functionalities, we use the element in a GridView control.
 
It's part of Data events like DetailView and Gridview under 
<Column>
<asp:ButtonField ButtonType...... />
</Column> 

Description With Example :

In the below example, we have used the ButtonField element to add Details button in a row of GridView control. The element displays the button as a link or a button or an Image.

Step 1:

Declare a GridView control and set the AutoGenerateColumns property to 'false' and set the event handler for the RowCommand event.

Step 2:

When we click on the Details button, the GridView controls row command event is raised. In this example, the event RowCommand is handled by the GridView1_RowCommand event.
<asp:GridView ID="GridView1"  DataSourceId="MyDataSource"
DataKeyNames="BlogId,FollowerName" ShowFooter="true" AutoGenerateColumns="false"
AutoGenerateEditButton="true" AutoGenerateDeleteButton="true"
OnRowCommand="GridView1_RowCommand"
runat="server">
<Columns>
 <asp:BoundField  DataField="BlogId" HeaderText="Blog Code" />
    <asp:BoundField  DataField="FollowerName" HeaderText="FollowerName" />
 <asp:BoundField  DataField="FollowerDetails" HeaderText="Description" />
 <asp:buttonfield  buttontype="button" Text="Row Details" commandname="Details"  />
</Columns>
</asp:GridView>

 



Step 3:

For row command , use following code or use can use RowCreated , RowUpdating etc gridviewrow events

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
 {
        int index = Int32.Parse((string)e.CommandArgument);
        string Code = (string)GridView1.DataKeys[index].Values["BlogId"];
        string Name = (string)GridView1.DataKeys[index].Values["FollowerName"];
 }

Above post is just is simple example for beginner to use it.. ...
We can do onclick events by ModelPopupExtender of Ajax toolkit...
 Enjoy..

[ Quote : "For the unlearned, old age is winter; for the learned it is the season of the harvest." ]








 
























 

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