Solved

Get values of controls in ListView Items

Posted on 2008-06-23
3
508 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
  • 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

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

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

Suggested Solutions

Today I had a very interesting conundrum that had to get solved quickly. Needless to say, it wasn't resolved quickly because when we needed it we were very rushed, but as soon as the conference call was over and I took a step back I saw the correct …
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

810 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