I am getting error when deleting rows from grid view

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I am using this code when deleting rows from grid The multi-part identifier "System. Web.UI.WebControls.Label" could not be bound. grid view

C#

Label name = (Label)grddata.Rows[0].FindControl("lblname");
//Label salary = (Label)grddata.Rows[0].FindControl("lblsal");
Label id = (Label)grddata.Rows[0].FindControl("lblid.text");
//string id = grddata.DataKeys
//   [e.Item.ItemIndex].ToString();

//SqlDataAdapter da = new SqlDataAdapter("UPDATE empdata SET name ='" + name + "' and salary=" + salary + " ", con);

SqlCommand cmd;
       
cmd = new SqlCommand("delete from empdata name='"+name+"'  ", con);
cmd.CommandType = CommandType.Text;
con.Open();
cmd.ExecuteNonQuery();

showdata();
con.Close();

[edit]Code block added[/edit]

Posted 15-Feb-14 8:54am

Member 9425683

Updated 15-Feb-14 9:27am

Nelek

v3

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Krunal Rohit 15-Feb-14 23:10pm

can you post the .aspx code ?

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Zahid Khan Kakar · Answer 1 · 2014-02-15T10:18:00

Try this under the row deleting event:

C#

 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
Label name= (Label)GridView1.Rows[e.RowIndex].FindControl("lblname");
            SqlConnection CN = new SqlConnection(Str_Conn);
            CN.Open();
            SqlCommand myCommand = new SqlCommand("Delete from empData Where name=@name", CN);

            myCommand.Parameters.Add(new SqlParameter("name", SqlDbType.VarChar)).Value = name.Text ;
            SqlDataReader myReader = default(SqlDataReader);
            myReader = myCommand.ExecuteReader();
lblStatus.text="Data deleted successfully."
}

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 2 · 2014-02-15T16:26:00

That is because of the following line.

C#

Label id = (Label)grddata.Rows[0].FindControl("lblid.text");

It should be.

C#

Label id = (Label)grddata.Rows[0].FindControl("lblid");

Bit this "id" is never used in that function. So, no need to read it either.

C#

Label id = (Label)grddata.Rows[0].FindControl("lblid.text");

One more thing, you are always reading the name from Row[0], which is not the correct way.
You should read the name from the Row, which is being deleted using e.RowIndex, already suggested by zahid.

JatinKhimani · Answer 3 · 2014-02-15T21:00:00

You are not write the Where Keyword in your query so its show the error
try to correct like this way

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
Label name= (Label)GridView1.Rows[e.RowIndex].FindControl("lablename");
SqlConnection cn = new SqlConnection(Str_Conn);
cn.Open();
SqlCommand cmd = new SqlCommand("Delete from empData Where name='"+name.Text+"'", cn);
cmd.ExecuteNonQuery();
cmd.dispose();
cn.Close();
lablemsg.Text="Data deleted..";
}

I am getting error when deleting rows from grid view

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