GridView Selectedindex Changed Event not getting Fired

Question

1.00/5 (1 vote)

See more:

Daer All;

Design Code:

XML

<asp:GridView ID="grdView" runat="server" DataKeyNames="ID" AutoGenerateColumns="false"
                    OnSelectedIndexChanged="grdView_SelectedIndexChanged">
                    <Columns>
                        <asp:BoundField DataField="ID" Visible="false" HeaderText="ID"></asp:BoundField>
                        <asp:BoundField DataField="NAME" Visible="true" HeaderText="NAME"></asp:BoundField>
                    </Columns>
                </asp:GridView>

C# Code Behind :

C#

protected void grdView_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                string index = grdView.DataKeyNames.ToString();
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message);
            }
        }

Once I'm Clicking the gridview The event Selectedindex changed is not getting fired.. Kindly guide me to get out of it..

And If you can give me a example to retrieve data of particular row which I'm selecting from grid Pls.. thanks in advance :-)

Posted 16-Dec-12 23:32pm

GANESH KUMAR K

Updated 16-Dec-12 23:34pm

v2

Add a Solution

Comments

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 17-Dec-12 6:27am

Have you check with the debugger, whether it is hitting or not?

GANESH KUMAR K 17-Dec-12 6:31am

Ya i put a break point in the event.. In page load also i do have a break point but it's not entering into pageload also while clicking(Selecting) row in grid..

[no name] 17-Dec-12 6:43am

Try changing the <asp:BoundField DataField="ID" Visible="false" HeaderText="ID"> to
<asp:BoundField DataField="ID" Visible="true" HeaderText="ID">

if this also not works then there must be some other problems with your code.
you need to attach your whole code so that we can look into the exact problem,

GANESH KUMAR K 19-Dec-12 4:14am

Thaks for your help @Armando Talex Thank you so much...

[no name] 19-Dec-12 5:02am

Did that worked?

GANESH KUMAR K 21-Dec-12 0:21am

Dear Armando Talex , I just Updated my codes fully.. See below... Thank you for your response. And actually the problem was not that one. Eventhough i changed the visibility true i did'n get the selected index changed event firing.. Thanks for your help again.. The code below is working.... Finally i got what exactly i wanted to get.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rai Pawan · Accepted Answer · 2012-12-17T00:19:00

Solution 2

You need to have a button firing select command in the gridview by default clicking a row does not fire this event. check this link out http://stackoverflow.com/questions/8358641/why-doesnt-my-gridview-selectedindexchanged-event-fire[^]

Regards
Pawan

Posted 17-Dec-12 0:19am

Rai Pawan

GANESH KUMAR K · Accepted Answer · 2012-12-18T22:11:00

This below Codings is to retrieve a data from ASP Datagrid. Those who are beginers to ASP.net this code will be very much useful to know.Please revert me if you facing any problem with this code.Let me try to help you :-)Please don't hesitate to go through all the codes..Hope just a copy paste of these codes in corresponding places will be works by changing your own connection string..Thanks :-)

ASPX Code:

XML

<!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>

    <script language="javascript" type="text/javascript">
        function DO(ID) {
            document.getElementById("hdnID").value = ID;
            document.getElementById("form1").submit();
        }
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table width="100%">
            <tr>
                <td colspan="2" align="center">
                    <asp:DataGrid ID="grdview" runat="server" AutoGenerateColumns="false" OnItemDataBound="ItemBound">
                        <Columns>
                            <asp:BoundColumn DataField="ID" HeaderText="ID" Visible="false"></asp:BoundColumn>
                            <asp:BoundColumn DataField="NAME" HeaderText="NAME"></asp:BoundColumn>
                        </Columns>
                    </asp:DataGrid>
                </td>
            </tr>
            <tr>
                <td colspan="2" align="center">
                    <asp:TextBox ID="txtName" runat="server"></asp:TextBox>
                    <input type="hidden" id="hdnID" runat="server" />
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>

C# Code:

public partial class Ganesh : System.Web.UI.Page
{
SqlConnection con;
protected void Page_Load(object sender, EventArgs e)
{
try
{
con = new SqlConnection(@"data source=GANESH-VAIO;initial catalog=GANESH;user id=sa;password=cool");
if (!IsPostBack)
{
FillGrid();
}
else
{
if (!string.IsNullOrEmpty(hdnID.Value))
{
GetValue();
ViewState["ID"] = hdnID.Value;
hdnID.Value = "";
}
}
}
catch (Exception ex)
{
Response.Redirect(ex.Message);
}
}

public void GetValue()
{
DataSet ds;
try
{
ds = new DataSet();
con.Open();
SqlDataAdapter dr = new SqlDataAdapter("select id,name from study where id='" + hdnID.Value.Trim() + "'", con);
dr.Fill(ds);
if(ds!=null && ds.Tables.Count>0&&ds.Tables[0].Rows.Count>0)
{
txtName.Text = ds.Tables[0].Rows[0]["NAME"].ToString();
}
}
catch (Exception ex)
{
throw ex;
}
}

protected void ItemBound(object sender, DataGridItemEventArgs e)
{
TableRow dr;
try
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
dr = (TableRow)e.Item.Cells[0].Parent;
dr.Attributes.Add("OnClick", "DO('" + e.Item.Cells[0].Text + "');");
}
}
catch (Exception ex)
{
Response.Redirect(ex.Message);
}
}

protected void FillGrid()
{
DataSet ds;
try
{
ds = new DataSet();
con.Open();
//SqlDataAdapter dr = new SqlDataAdapter("select id,name from study", con);
//dr.Fill(ds);
//grdview.DataSource = ds;
SqlCommand cmd = new SqlCommand("select id,name from study", con);
SqlDataReader read = cmd.ExecuteReader();
grdview.DataSource = read;
grdview.DataBind();
}
catch (Exception ex)
{
throw ex;
}
}
}

DATABASE CODE :

SQL

CREATE TABLE STUDY(ID CHAR(16),NAME VARCHAR(100))
INSERT INTO STUDY (ID,NAME) VALUES (REPLACE((RIGHT(NEWID(),17)),'-',''),'GANESH')
INSERT INTO STUDY (ID,NAME) VALUES (REPLACE((RIGHT(NEWID(),17)),'-',''),'RAMESH')
INSERT INTO STUDY (ID,NAME) VALUES (REPLACE((RIGHT(NEWID(),17)),'-',''),'SURESH')
SELECT * FROM STUDY

Thanks & Regards,
Ganesh kumar K