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How to fire a stored procedure on dropdownlist change passin the row from a gridview?

Posted on 2008-10-13
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Last Modified: 2013-11-07
I used the code below to fire a stored procedure without having to 'edit' the row using a command button, it works fine, but now I want to do the same using a dropdownlist which will be in each gridview row, again without having to 'edit' the row.
How do I make it so that when I change one of the drop down lists it passes the row key value and the dropdown value to a stored procedure similarly to this command button solution?
Thanks in advance,
Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
        If e.CommandName = "SetMessagePreference" Then
 
            Dim sConnStr As String = SqlDataSource1.ConnectionString
            Dim cnBKTest As New SqlConnection(sConnStr)
            Dim cmdTest As New SqlCommand("FGContactDetailsMessagePreference", cnBKTest)
 
            cmdTest.CommandType = Data.CommandType.StoredProcedure
            cmdTest.Parameters.Add(New SqlParameter("@ContractID", Data.SqlDbType.VarChar, 10))
            cmdTest.Parameters("@ContractID").Value = e.CommandArgument
            cmdTest.Parameters.Add(New SqlParameter("@MessagePreferenceID", Data.SqlDbType.VarChar, 10))
            cmdTest.Parameters("@MessagePreferenceID").Value = 2
 
            cnBKTest.Open()
            cmdTest.ExecuteNonQuery()
            cnBKTest.Close()
            GridView1.DataBind()
        End If
    End Sub

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Question by:dgloveruk
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3 Comments
 
LVL 12

Accepted Solution

by:
madhevan_pillai earned 2000 total points
ID: 22711237
Try this

aspx
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!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="GridView1" runat="server" AutoGenerateColumns="False" DataMember="DefaultView" DataSourceID="SqlDataSource1"   >
        <Columns>
            <asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />
            <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
            <asp:TemplateField>
            <HeaderTemplate>
            <label>ID1 </label>
            </HeaderTemplate>
            <ItemTemplate >
           
            <asp:DropDownList AutoPostBack="true"    id="ddlEmployeeID1" DataSourceID="SqlDataSource1"
                Runat="Server" DataTextField="Id1" DataValueField="Id1"  SelectedValue='<%#Bind("Id1") %>' OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" />

            </ItemTemplate>
            </asp:TemplateField>
        </Columns>
        </asp:GridView>
       
     
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:testConnectionString %>"
            SelectCommand="SELECT [Id], [Name], [Id1] FROM [Parent]"></asp:SqlDataSource>
   
    </div>
    </form>
</body>
</html>


codebehind
Partial Class _Default
    Inherits System.Web.UI.Page

  Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)
    Dim i As Integer
    'i will have the id
    i = CInt(DirectCast(DirectCast(DirectCast(sender, DropDownList).Parent, System.Web.UI.WebControls.DataControlFieldCell).Parent, System.Web.UI.WebControls.GridViewRow).Cells(0).Text)

    ''add code to invoke the stored procedure

  End Sub
End Class
0
 

Author Closing Comment

by:dgloveruk
ID: 31505643
Thanks for that, sorry for the delay in awarding points!
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