How to write linkbutton click event (linkbutton in gridview)?

Question

Hi all I have a linkbutton placed in template field in gridview.. How can i write the click even for this linkbutton and in rowdatabound event of gridview how to access this linkbutton? At this linkbutton click event i need to load another gridview with data based on selected id in that row.. Plzz help

Vijay Yadav · Answer

Hi Nethra Please have a look protected void LinkButton1_Click (object sender EventArgs e) { LinkButton LnkSeletedRow= sender as LinkButton; if (LnkSeletedRow!= null) { GridViewRow grv = LnkSeletedRow.NamingContainer as GridViewRow; if (grv != null) { Label lblEmpId = (Label)grv.FindControl(LblEmpID); // Suppose employee id is unique // now here you can do the coding for displaying record in another Gridview by datasource and databind() } } }

Nethra R S · Answer

Hi Vijay I have a gridview with a linkbutton as child controls. For the linkbutton click event i need to display the related row in another gridview. How do i do it?

Vijay Yadav · Answer

Hi Nethra Check this LinkButton1 runat= server Text= Click Here... OnClick=LinkButton1_Click/> protected void LinkButton1_Click (object sender EventArgs e) { LinkButton LnkSeletedRow= sender as LinkButton; string strSelectedRow=LnkSeletedRow.Text; } Hope this will help you...! :)

Sandeep Kumar · Answer

Nethre are you sure you have defined the command name in the grid view link button define command name then use ............

Nethra R S · Answer

Hi Satypriya But this is not wat i need..

Satyapriya Nayak · Answer

Hi Nethra One other way to do it.I have the code in vb language below. Normal 0 test3.aspx code @ Page Language =VB AutoEventWireup =false CodeFile =test3.aspx.vb Inherits =test3 %> DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd> html xmlns =http://www.w3.org/1999/xhtml> head runat =server> title > Untitled Page title > head > body > form id =form1 runat =server> div > asp : gridview id =g4 runat =server AutoGenerateColumns =false > columns > asp : hyperlinkfield headertext =Empid datatextfield =empid datanavigateurlformatstring =test4.aspx?details={0} datanavigateurlfields =empid/> asp : boundfield headertext =Empname datafield =empname /> columns > asp : gridview > div > form > body > html > test3.aspx.vb code Imports System.Data Imports System.Data.SqlClient Partial Class test3 Inherits System.Web.UI.Page Dim strConnString As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item( ConnectionString ).ToString() Dim con As New SqlConnection(strConnString) Dim str As String Dim com As SqlCommand Dim sqlda As SqlDataAdapter Dim ds As DataSet Protected Sub Page_Load( ByVal sender As Object  ByVal e As System.EventArgs) Handles Me .Load bind() End Sub Sub bind() con.Open() str = select * from employee com = New SqlCommand(str con) Dim reader As SqlDataReader reader = com.ExecuteReader() g4.DataSource = reader g4.DataBind() con.Close() End Sub End Class test4.aspx code @ Page Language =VB AutoEventWireup =false CodeFile =test4.aspx.vb Inherits =test4 %> DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd> html xmlns =http://www.w3.org/1999/xhtml> head runat =server> title > Untitled Page title > head > body > form id =form1 runat =server> div > div > asp : GridView ID =g5 runat =server> asp : GridView > form > body > html > test4.aspx.vb code Imports System.Data Imports System.Data.SqlClient Partial Class test4 Inherits System.Web.UI.Page Dim strConnString As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item( ConnectionString ).ToString() Dim con As New SqlConnection(strConnString) Dim str As String Dim com As SqlCommand Dim sqlda As SqlDataAdapter Dim ds As DataSet Dim s1 As String Dim dt As DataTable Protected Sub Page_Load( ByVal sender As Object  ByVal e As System.EventArgs) Handles Me .Load Try con.Open() s1 = Request.QueryString(0) str = select * from employee where empid=' + s1 + ' com = New SqlCommand(str con) g5.DataSource = com.ExecuteReader g5.DataBind() Catch ex As Exception MsgBox(ex.Message) End Try con.Close() End Sub End Class Thanks If this post helps you mark it as answer

Nethra R S · Answer

Hi Amit  The code you have given does not work for me. How can i write an event for linkbutton in the gridview?

Nethra R S · Answer

Hi Amit My code is like below protected void GVSearchItem_RowCommand(object sender GridViewCommandEventArgs e) { if (e.CommandName == View) { GridViewRow row = GVSearchItem.SelectedRow; int itemid = Convert.ToInt32(row.Cells[2].Text); //Load Location Details of the Selected Item in GVSearchItem Gridview DataSet DSLoadLocation = obj.LoadDataSet(Select * from vw_tblItem_LocationMaster where ItemID='+itemid+'); ItemLocationDetails.DataSource = DSLoadLocation.Tables[0]; ItemLocationDetails.DataBind(); } } What is CommandArgument?

Amit Choudhary · Answer

Use the Gridview row command event to handle the button click event. Use CommandName for identifying the event source and pass command argument to identify the index like below AddButton runat= server CommandName= AddToCart CommandArgument=   Text= Add to Cart /> protected void GridView1_RowCommand( object sender GridViewCommandEventArgs e) { if (e.CommandName == AddToCart ) { // Retrieve the row index stored in the // CommandArgument property. int index = Convert.ToInt32(e.CommandArgument); // Retrieve the row that contains the button // from the Rows collection. GridViewRow row = GridView1.Rows[index]; // Add code here to add the item to the shopping cart. } } Hope this was helpful.