delete row from selected gridview and database
- by user175084
i am trying to delete a row from the gridview and database...
It should be deleted if a delte linkbutton is clicked in the gridview..
I am gettin the row index as follows:
protected void LinkButton1_Click(object sender, EventArgs e)
{
LinkButton btn = (LinkButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
if (row != null)
{
LinkButton LinkButton1 = (LinkButton)sender;
// Get reference to the row that hold the button
GridViewRow gvr = (GridViewRow)LinkButton1.NamingContainer;
// Get row index from the row
int rowIndex = gvr.RowIndex;
string str = rowIndex.ToString();
//string str = GridView1.DataKeys[row.RowIndex].Value.ToString();
RemoveData(str); //call the delete method
}
}
now i want to delete it... so i am having problems with this code.. i get an error
Must declare the scalar variable "@original_MachineGroupName"... any suggestions
private void RemoveData(string item)
{
SqlConnection conn = new SqlConnection(@"Data Source=JAGMIT-PC\SQLEXPRESS;
Initial Catalog=SumooHAgentDB;Integrated Security=True");
string sql = "DELETE FROM [MachineGroups] WHERE [MachineGroupID] =
@original_MachineGroupID;
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@original_MachineGroupID", item);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
}
Blockquote
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:SumooHAgentDBConnectionString %>"
SelectCommand="SELECT MachineGroups.MachineGroupID, MachineGroups.MachineGroupName,
MachineGroups.MachineGroupDesc, MachineGroups.TimeAdded,
MachineGroups.CanBeDeleted, COUNT(Machines.MachineName) AS Expr1,
DATENAME(month, (MachineGroups.TimeAdded - 599266080000000000) / 864000000000) +
SPACE(1) + DATENAME(d, (MachineGroups.TimeAdded - 599266080000000000) /
864000000000) +
', ' + DATENAME(year, (MachineGroups.TimeAdded - 599266080000000000) /
864000000000) AS Expr2 FROM MachineGroups FULL OUTER JOIN Machines ON
Machines.MachineGroupID = MachineGroups.MachineGroupID GROUP BY
MachineGroups.MachineGroupID, MachineGroups.MachineGroupName,
MachineGroups.MachineGroupDesc, MachineGroups.TimeAdded,
MachineGroups.CanBeDeleted"
DeleteCommand="DELETE FROM [MachineGroups] WHERE
[MachineGroupID] =@original_MachineGroupID" >
<DeleteParameters>
<asp:Parameter Name="@original_MachineGroupID" Type="Int16" />
<asp:Parameter Name="@original_MachineGroupName" Type="String" />
<asp:Parameter Name="@original_MachineGroupDesc" Type="String" />
<asp:Parameter Name="@original_CanBeDeleted" Type="Boolean" />
<asp:Parameter Name="@original_TimeAdded" Type="Int64" />
</DeleteParameters>
</asp:SqlDataSource>
I still get an error : Must declare the scalar variable "@original_MachineGroupID"
