How to pass multiple selected check-box values in repeater C#

Question

I am using Repeater control to display data from Database table in HTML table on ASPX page. There are also two link buttons Approve and Rejectwhich are bind with Repeater method ItemCommand.

There is a checkbox in first column of each row. This will enable user to select multiple rows and perform Approve and Reject operation. Here is the code:

<asp:Repeater ID="PendingRegRepeater" runat="server" OnItemCommand="PendingRegRepeater_ItemCommand">
                <HeaderTemplate>
                    <table>
                        <thead>
                            <tr>
                                <th>
                                    Select
                                </th>
                                <th>
                                    Customer Name
                                </th>
                                <th>
                                    Space ID
                                </th>
                                <th>
                                    Date
                                </th>
                                <th>
                                    Amount Paid
                                </th>
                                <th>
                                    Pin Code
                                </th>
                                <th>
                                    Payment Method
                                </th>
                                <th>
                                    Action
                                </th>
                            </tr>
                        </thead>
                </HeaderTemplate>
                <ItemTemplate>
                    <tbody>
                        <tr>
                            <td>
                                <asp:CheckBox runat="server" />
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "CustomerName") %>
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "SpaceID") %>
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "TransactionDate") %>
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "AmountPaid") %>
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "Pincode") %>
                            </td>
                            <td>
                                <%# DataBinder.Eval(Container.DataItem, "PaymentMethod") %>
                            </td>
                            <td>
                                <asp:LinkButton ID="lnkApprove" CommandName="Approve" CommandArgument='<%# Eval("RRID") %>' Text="Approve" runat="server" ForeColor="Black" Font-Underline="true"></asp:LinkButton>
                                /
                                <asp:LinkButton ID="lnkReject" CommandName="Reject" CommandArgument='<%# Eval("RRID") %>' Text="Reject" runat="server" ForeColor="Black" Font-Underline="true"></asp:LinkButton>
                            </td>
                        </tr>
                    </tbody>
                </ItemTemplate>
                <FooterTemplate>
                    </table>
                </FooterTemplate>
            </asp:Repeater>

But I am unable to think a way to handle when user selects multiple checkboxes and presses Approve or Reject button. The compiler won't allow me to set ID attribute of Check-box a dynamic value <%# Eval("RRID") %>. Please suggest to handle this situation. thanks.

Adil · Accepted Answer · 2013-10-01 18:10:15Z

3

The id of checkbox will be generated using the id you assigned to the checkbox. ASP.net generated will have unique id for each checkbox in the generated row.

Html

<asp:CheckBox runat="server" id="checkBoxID" />

In code Behind

foreach (RepeaterItem item in PendingRegRepeater.Items)
{
    if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
    {
        var checkBox = (CheckBox)item.FindControl("checkBoxID");
        checkBox.Checked = true;
    }
}

edited Oct 1, 2013 at 18:10

answered Oct 1, 2013 at 18:04

Adil

148k25 gold badges217 silver badges207 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Azeem Over a year ago

and on server side how to check which check-boxes are selected?

Azeem Over a year ago

Actually I need to associate <%# Eval("RRID") %> with each check-box because after user selects check-boxes I will be able to query with each selected check-box id or row id.

Adil Over a year ago

You can try adding custom attribute to checkbox like <asp:CheckBox runat="server" id="checkBoxID" SomeAttr='<%# Eval("RRID") %>' /> and later accessing it like checkBox.Attributes["SomeAttr"].ToString()

Servy · Accepted Answer · 2013-10-01 18:06:07Z

2

Just set each checkbox a static ID. The actual ID object generated will be unique for each row.

You can then go through all of the rows and access that checkbox for each row:

foreach (RepeaterItem item in repeater.Items)
{
    var checkbox = item.FindControl("checkboxId") as CheckBox;
}

answered Oct 1, 2013 at 18:06

Servy

204k27 gold badges347 silver badges470 bronze badges

2 Comments

Azeem Over a year ago

Actually I need to associate <%# Eval("RRID") %> with each check-box because after user selects check-boxes I will be able to query with each selected check-box id or row id.

Servy Over a year ago

@NidaSulheri But you already have access to all of the row information through the RepeaterItem object. There's no need to embed the information in the ID property.

Jacob · Accepted Answer · 2013-10-01 18:21:40Z

Greate, clearly sample i've made for you:

<asp:Repeater ID="rptPerson" runat="server" EnableViewState="false">
        <ItemTemplate>
            <asp:CheckBox ID="chCustomer" runat="server" Text='<%#Eval("FirstName") %>' />
            <asp:HiddenField ID="hidden" runat="server" Value='<%#Eval("LastName") %>' />
        </ItemTemplate>
</asp:Repeater>

In your C# code:

protected void btnSubmit_Click(object sender, EventArgs e)
{
    foreach (RepeaterItem item in rptPerson.Items)
    {
        CheckBox c = item.Controls[1] as CheckBox;
        if (c.Checked)
            doSomething((item.Controls[3] as HiddenField).Value);
    }
}

You can breakpoint at the beggining of this method to check wehre are the controls of your repeater positioned. In this example the asp:HiddenField is at position 3 and the asp:checkBox is at position 1.

I very !!! recommand you to create a UserControl that composite together all the elements you need for one row with the required properties like: Checked, ID etc... and simply put that control in the repeater section so it will generate all you need together for every row (include ID).

Collectives™ on Stack Overflow

How to pass multiple selected check-box values in repeater C#

3 Answers 3

3 Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related