?
Solved

Datagrid with Multiple Select Checkboxes

Posted on 2004-09-02
1
Medium Priority
?
276 Views
Last Modified: 2011-09-20
Hi,

I have a datagrid with a list of items, and I want to be able to have a column that contains checkboxes and then a button below that postbacks. On postback, I want to be able to determine which rows were checked. How can I do this without a postback for each checkbox being checked?

Thanks!
0
Comment
Question by:tonypino123
1 Comment
 
LVL 17

Accepted Solution

by:
AerosSaga earned 1500 total points
ID: 11964326
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb" Inherits="RadioButtonInDataGrid.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
      <HEAD>
            <title>WebForm1</title>
            <meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
            <meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
            <meta name="vs_defaultClientScript" content="JavaScript">
            <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
      </HEAD>
      <body MS_POSITIONING="GridLayout">
            <form id="Form1" method="post" runat="server">
                  <asp:DataGrid id="DataGrid1" style="Z-INDEX: 101; LEFT: 8px; POSITION: absolute; TOP: 8px" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" BackColor="White" CellPadding="4" AutoGenerateColumns="False" Width="144px" Height="22px">
                        <SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>
                        <ItemStyle ForeColor="#330099" BackColor="White"></ItemStyle>
                        <HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000"></HeaderStyle>
                        <FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>
                        <Columns>
                              <asp:TemplateColumn HeaderText="Select">
                                    <ItemTemplate>
                                          <asp:Label id="Label2" runat="server"></asp:Label>
                                    </ItemTemplate>
                              </asp:TemplateColumn>
                              <asp:BoundColumn DataField="lastname" HeaderText="Last Name"></asp:BoundColumn>
                        </Columns>
                        <PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC"></PagerStyle>
                  </asp:DataGrid>
                  <asp:Label id="Label3" style="Z-INDEX: 103; LEFT: 222px; POSITION: absolute; TOP: 35px" runat="server" Width="184px"></asp:Label>
                  <asp:Button id="Button1" style="Z-INDEX: 102; LEFT: 218px; POSITION: absolute; TOP: 70px" runat="server" Text="Display Selected Value"></asp:Button>
            </form>
      </body>
</HTML>

----------------------------------------------------------------------------------------------------------------------

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If Not Page.IsPostBack Then
            BindGrid()
        End If
    End Sub

    Sub BindGrid()
        Dim connstr As String = "Integrated Security=SSPI;Initial Catalog=Northwind;Data Source=.\NetSDK"
        Dim cnn As SqlConnection
        Dim da As SqlDataAdapter
        Dim ds As New DataSet()
        cnn = New SqlConnection(connstr)
        da = New SqlDataAdapter("select * from employees", cnn)
        da.Fill(ds, "employees")
        DataGrid1.DataSource = ds
        DataGrid1.DataBind()
    End Sub

    Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound
        If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.Item Then
            Dim r As Label
            r = e.Item.FindControl("Label2")
            r.Text = "<input type=radio name='myradiogroup' value=" & e.Item.Cells(1).Text & ">"
        End If
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Label3.Text = Request.Form("myradiogroup")
        Dim i As DataGridItem
        For Each i In DataGrid1.Items
            If i.ItemType = ListItemType.AlternatingItem Or i.ItemType = ListItemType.Item Then
                Dim r As Label
                r = i.FindControl("Label2")
                If r.Text.IndexOf(Label3.Text) > 0 Then
                    r.Text = "<input type=radio name='myradiogroup' value=" & i.Cells(1).Text & " checked>"
                Else
                    r.Text = "<input type=radio name='myradiogroup' value=" & i.Cells(1).Text & ">"
                End If
            End If
        Next
    End Sub
0

Featured Post

The new generation of project management tools

With monday.com’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

Question has a verified solution.

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

In .NET 2.0, Microsoft introduced the Web Site.  This was the default way to create a web Project in Visual Studio 2005.  In Visual Studio 2008, the Web Application has been restored as the default web Project in Visual Studio/.NET 3.x The Web Si…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…
Free Data Recovery software is an advanced solution from Kernel Tools to recover data and files such as documents, emails, database, media and pictures, etc. It supports recovery from physical & logical drive after a hard disk crash, accidental/inte…
Suggested Courses

600 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