Solved

Get values of controls in ListView Items

Posted on 2008-06-23
3
520 Views
Last Modified: 2013-11-26
I have an ASP.NET 3.5 application with a web control that has a ListView which displays a list of questions.  Each question has: the question (label), "pass" radio button, "fail" radio button and a notes multi-line textbox.  The end user will select either pass or fail for each question (list item) and then click a submit button (not in the ListView).  On click I need to iterate through each of the items in the ListView and figure out if pass or fail was checked and record that question id and the response (pass or fail).  I have the recording process done with LINQ and it works well but need to get the iteration down.

Thank you for your help!
0
Comment
Question by:csg_int_it
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 37

Expert Comment

by:samtran0331
ID: 21848507
It's pretty much the same as any data listing control...
aspx:
==========================================================
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="VB_2008._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 id="Head1" runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" 
            SelectCommand="SELECT TOP 4 [EmployeeID], [LastName], [FirstName] FROM [Employees]"></asp:SqlDataSource>
    </div>
    <asp:ListView ID="ListView1" runat="server" DataKeyNames="EmployeeID" 
        DataSourceID="SqlDataSource1">
        <LayoutTemplate>
            <table id="Table1" runat="server">
                <tr id="Tr1" runat="server">
                    <td id="Td1" runat="server">
                        <table ID="itemPlaceholderContainer" runat="server" border="1" 
                            style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;font-family: Verdana, Arial, Helvetica, sans-serif;">
                            <tr id="Tr2" runat="server" style="background-color: #FFFBD6;color: #333333;">
                                <th id="Th1" runat="server">
                                    EmployeeID</th>
                                <th id="Th2" runat="server">
                                    LastName</th>
                                <th id="Th3" runat="server">
                                    FirstName</th>
                                    <th id="Th4" runat="server">Stuff</th>
                            </tr>
                            <tr ID="itemPlaceholder" runat="server">
                            </tr>
                        </table>
                    </td>
                </tr>
                <tr id="Tr3" runat="server">
                    <td id="Td2" runat="server" 
                        style="text-align: center;background-color: #FFCC66;font-family: Verdana, Arial, Helvetica, sans-serif;color: #333333;">
                    </td>
                </tr>
            </table>
        </LayoutTemplate>
        <ItemTemplate>
            <tr style="background-color: #FFFBD6;color: #333333;">
                <td>
                    <asp:Label ID="EmployeeIDLabel" runat="server" 
                        Text='<%# Eval("EmployeeID") %>' />
                </td>
                <td>
                    <asp:Label ID="LastNameLabel" runat="server" Text='<%# Eval("LastName") %>' />
                </td>
                <td>
                    <asp:Label ID="FirstNameLabel" runat="server" Text='<%# Eval("FirstName") %>' />
                </td>
                <td>
                    <asp:RadioButtonList ID="RadioButtonList1" runat="server">
                    <asp:ListItem Text="Pass" Value="p"></asp:ListItem>
                    <asp:ListItem Text="Fail" Value="f"></asp:ListItem>
                    </asp:RadioButtonList>
                    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                </td>
            </tr>
        </ItemTemplate>
    </asp:ListView>
    <asp:Button ID="Button1" runat="server" Text="Button" />
    
    </form>
</body>
</html>
 
 
 
 
codebehind:
=================================================================
    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
        Dim str As String = String.Empty
        For i As Integer = 0 To Me.ListView1.Items.Count - 1
            If Me.ListView1.Items(i).ItemType = ListViewItemType.DataItem Then
                str &= "Row: " & i.ToString & " "
                Dim rbl As RadioButtonList
                rbl = CType(ListView1.Items(i).FindControl("RadioButtonList1"), RadioButtonList)
                If rbl.SelectedValue = "p" Then
                    str &= ", Pass"
                Else
                    str &= ", Fail"
                End If
                str &= ", Text: " & CType(ListView1.Items(i).FindControl("TextBox1"), TextBox).Text & "<br />"
            End If
        Next
        Response.Write(str)
    End Sub

Open in new window

0
 
LVL 37

Accepted Solution

by:
samtran0331 earned 500 total points
ID: 21848527
the gist of the above sample being:
1. Loop through the listview items
2. findcontrol to find your controls and set them to instantiated controls
3. get the value of the instantiated controls:



       For i As Integer = 0 To Me.ListView1.Items.Count - 1
            If Me.ListView1.Items(i).ItemType = ListViewItemType.DataItem Then
                str &= "Row: " & i.ToString & " "
                Dim rbl As RadioButtonList
                rbl = CType(ListView1.Items(i).FindControl("RadioButtonList1"), RadioButtonList)
                If rbl.SelectedValue = "p" Then
                    str &= ", Pass"
                Else
                    str &= ", Fail"
                End If
                str &= ", Text: " & CType(ListView1.Items(i).FindControl("TextBox1"), TextBox).Text & "<br />"
            End If
        Next
0
 

Author Closing Comment

by:csg_int_it
ID: 31469818
Thank you for the very fast response, it helped me to continue on with my development.
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question