Introduction:
In
this article I will explain how to declare multiple datakeynames in gridview and
how to get multiple datakey values in gridview rowcommand event in asp.net.
Description:
In previous posts I explained many articles relating to gridview now I will explain how to declare multiple datakeyname values in gridview and how to get datakeyname values from gridview in gridview rowcommand event in asp.net.
In previous posts I explained many articles relating to gridview now I will explain how to declare multiple datakeyname values in gridview and how to get datakeyname values from gridview in gridview rowcommand event in asp.net.
Generally in
gridview we will declare DataKeyNames values like this
DataKeyNames="yourColumnName"
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If we want to get this DataKeyNames value from gridview in rowcommand event we will get it like this
protected void
gvUserInfo_RowDataCommand(object sender, GridViewCommandEventArgs e)
{
GridViewRow gvrow;
string str =
gvUserInfo.DataKeys[gvrow.RowIndex].Value.ToString();
}
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If we want to declare multiple DataKeyNames values we will declare it as
DataKeyNames="Column1,Column2,Column3"
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Now if we want get these DataKeyNames values we will declare it like this
protected void
gvUserInfo_RowDataCommand(object sender, GridViewCommandEventArgs e)
{
GridViewRow gvrow;
string value1 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[0].ToString();
string value2 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[1].ToString();
string value3 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[2].ToString();
}
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We can get these
datakeynames values with datakeyname also that would be like this
protected void
gvUserInfo_RowDataCommand(object sender, GridViewCommandEventArgs e)
{
string value1 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values["Column1"].ToString();
string value2 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values["Column2"].ToString();
string value3 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values["Column3"].ToString();
}
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If we want to get DataKeyNames values with foreach statement in
rowcommand event that would be like this
protected void
gvUserInfo_RowDataCommand(object sender, GridViewCommandEventArgs e)
{
foreach (GridViewRow
gvrow in gvUserInfo.Rows)
{
string value1 = gvUserInfo.DataKeys[gvrow.RowIndex].Values[0].ToString();
string value2 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[1].ToString();
string value3 =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[2].ToString();
}
}
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For sample check below code
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"
runat="server">
<title>Get Gridview datakeyname values in rowcommand event in
asp.net</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<asp:GridView ID="gvUserInfo"
runat="server"
AutoGenerateColumns="false"
DataKeyNames="MobileId,MobileName"
OnRowCommand="gvUserInfo_RowDataCommand"
>
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
<Columns>
<asp:BoundField DataField="MobileId" HeaderText="MobileId" />
<asp:BoundField DataField="MobileName" HeaderText="MobileName" />
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
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After completion of aspx page add following namespaces in
codebehind
C#
Code
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
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After
that add following code in code behind
protected void
Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
SqlConnection con = new SqlConnection("Data
Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB");
con.Open();
SqlCommand cmd = new SqlCommand("select
* from MobileDetails order by Priority asc", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gvUserInfo.DataSource = ds;
gvUserInfo.DataBind();
}
}
protected void
gvUserInfo_RowDataCommand(object sender, GridViewCommandEventArgs e)
{
foreach (GridViewRow
gvrow in gvUserInfo.Rows)
{
string mobileId = gvUserInfo.DataKeys[gvrow.RowIndex].Values[0].ToString();
string mobileName =
gvUserInfo.DataKeys[gvrow.RowIndex].Values[1].ToString();
}
}
}
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VB.NET Code
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Web.UI.WebControls
Partial Public Class _Default
Inherits System.Web.UI.Page
Protected Sub
Page_Load(ByVal sender As Object, ByVal e As
EventArgs)
If Not IsPostBack Then
Dim con As New SqlConnection("Data
Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB")
con.Open()
Dim cmd As New SqlCommand("select
* from MobileDetails order by Priority asc", con)
Dim da As New SqlDataAdapter(cmd)
Dim ds As New DataSet()
da.Fill(ds)
con.Close()
gvUserInfo.DataSource = ds
gvUserInfo.DataBind()
End If
End Sub
Protected Sub
gvUserInfo_RowDataCommand(ByVal sender As Object, ByVal e As
GridViewCommandEventArgs)
For Each gvrow As GridViewRow In
gvUserInfo.Rows
Dim mobileId As String = gvUserInfo.DataKeys(gvrow.RowIndex).Values(0).ToString()
Dim mobileName As String =
gvUserInfo.DataKeys(gvrow.RowIndex).Values(1).ToString()
Next
End Sub
End Class
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10 comments :
nice artilce..really helpful and needful
super super suresh,,, god bless u..........
I am highly impress by your Articles
But you using () bracket instead of [] ???
nice artical
nice article
Nice article . we would expect more explanation on the code.
the use of unassigned local variable gvrow error....
help!
super suresh ..
i am shiv from guntur
I am your fan/