GridViewRowCollection.Item Property (Int32)
.NET Framework (current version)
Gets the GridViewRow object at the specified index.
Assembly: System.Web (in System.Web.dll)
Parameters
- index
-
Type:
System.Int32
The index of the GridViewRow object to retrieve from the collection.
Property Value
Type: System.Web.UI.WebControls.GridViewRowThe GridViewRow object at the specified index in the collection.
Use this indexer to retrieve a GridViewRow object from the collection at the specified index, using array notation.
The following example demonstrates how to use the indexer to retrieve a GridViewRow object from the collection. The values of the cells in the GridViewRow object are displayed on the page.
<%@ Page language="VB" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> Sub AuthorsGridView_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs) ' The GridView control does not automatically extract updated values ' from TemplateField column fields. These values must be added manually ' to the NewValues dictionary. ' Get the GridViewRow object that represents the row being edited ' from the Rows collection of the GridView control. Dim index As Integer = AuthorsGridView.EditIndex Dim row As GridViewRow = AuthorsGridView.Rows(index) ' Get the controls that contain the updated values. In this ' example, the updated values are contained in the TextBox ' controls declared in the EditItemTemplates of the TemplateField ' column fields in the GridView control. Dim lastName As TextBox = CType(row.FindControl("LastNameTextBox"), TextBox) Dim firstName As TextBox = CType(row.FindControl("FirstNameTextBox"), TextBox) ' Add the updated values to the NewValues dictionary. Use the ' parameter names declared in the parameterized update query ' string for the key names. e.NewValues("au_lname") = lastName.Text e.NewValues("au_fname") = firstName.Text End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>GridViewRowCollection Indexer Example</title> </head> <body> <form id="form1" runat="server"> <h3>GridViewRowCollection Indexer Example</h3> <!-- The GridView control automatically sets the columns --> <!-- specified in the datakeynames attribute as read-only --> <!-- No input controls are rendered for these columns in --> <!-- edit mode. --> <asp:gridview id="AuthorsGridView" datasourceid="AuthorsSqlDataSource" autogeneratecolumns="false" autogenerateeditbutton="true" datakeynames="au_id" cellpadding="10" onrowupdating="AuthorsGridView_RowUpdating" runat="server"> <columns> <asp:boundfield datafield="au_id" headertext="Author ID" readonly="true"/> <asp:templatefield headertext="Last Name" itemstyle-verticalalign="Top"> <itemtemplate> <%#Eval("au_lname")%> </itemtemplate> <edititemtemplate> <asp:textbox id="LastNameTextBox" text='<%#Eval("au_lname")%>' width="90" runat="server"/> <br/> <asp:requiredfieldvalidator id="LastNameRequiredValidator" controltovalidate="LastNameTextBox" display="Dynamic" text="Please enter a last name." runat="server" /> </edititemtemplate> </asp:templatefield> <asp:templatefield headertext="First Name" itemstyle-verticalalign="Top"> <itemtemplate> <%#Eval("au_fname")%> </itemtemplate> <edititemtemplate> <asp:textbox id="FirstNameTextBox" text='<%#Eval("au_fname")%>' width="90" runat="server"/> <br/> <asp:requiredfieldvalidator id="FirstNameRequiredValidator" controltovalidate="FirstNameTextBox" display="Dynamic" text="Please enter a first name." runat="server" /> </edititemtemplate> </asp:templatefield> <asp:checkboxfield datafield="contract" headertext="Contract" readonly="true"/> </columns> </asp:gridview> <!-- This example uses Microsoft SQL Server and connects --> <!-- to the Pubs sample database. --> <asp:sqldatasource id="AuthorsSqlDataSource" selectcommand="SELECT [au_id], [au_lname], [au_fname], [contract] FROM [authors]" updatecommand="UPDATE authors SET au_lname=@au_lname, au_fname=@au_fname WHERE (authors.au_id = @au_id)" connectionstring="server=localhost;database=pubs;integrated security=SSPI" runat="server"> </asp:sqldatasource> </form> </body> </html>
.NET Framework
Available since 2.0
Available since 2.0
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