hide and show table column using CheckBox

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hi ..
how to hide and show table column using CheckBox if the table are in Repeater Controle

Posted 19-Sep-13 1:42am

ankit kumar from RIT

Updated 19-Sep-13 1:48am

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[no name] 19-Sep-13 8:46am

What do you mean by that? elaborate

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Zubair Alie · Answer 1 · 2013-09-19T03:41:00

CSS

.Hide{visibility:hidden;}
        .Show {visibility:visible;}

Page

XML

<asp:ScriptManager ID="scManager" runat="server"></asp:ScriptManager>
    <asp:UpdatePanel ID="upTest" runat="server">
        <ContentTemplate>
             <asp:CheckBox ID="chkShowHide" runat="server" AutoPostBack="true"
                oncheckedchanged="chkShowHide_CheckedChanged" />

         <asp:Repeater ID="rptTest" runat="server">
            <ItemTemplate>
                <table id="myTable" runat="server">

                <tr id="myTr">
                     <td id="mytd1" runat="server">
                           <asp:Label ID="lblTest" runat="server" Text='<%# Eval("Col1") %>'></asp:Label>
                        </td>
                        <td id="mytd2" runat="server">
                            <asp:Label ID="lblTest2" runat="server" Text='<%# Eval("Col2") %>'></asp:Label>
                        </td>
                        <td id="mytd3" runat="server">
                             <asp:Label ID="Label3" runat="server" Text='<%# Eval("Col3") %>'></asp:Label>
                        </td>
                </tr>
                </table>

            </ItemTemplate>
        </asp:Repeater>
        </ContentTemplate>
    </asp:UpdatePanel>

CS Code

C#

foreach (Control ctrlItem in rptTest.Controls)
            {
                if (ctrlItem is RepeaterItem)
                {
                    foreach (Control ctrlTable in ctrlItem.Controls)
                    {
                        if (ctrlTable is System.Web.UI.HtmlControls.HtmlTable)
                        {
                            foreach (Control ctrlRow in ctrlTable.Controls)
                            {
                                if (ctrlRow is System.Web.UI.HtmlControls.HtmlTableRow)
                                {
                                    int i = 0;
                                    foreach (Control ctrlCell in ctrlRow.Controls)
                                    {
                                        if (ctrlCell is System.Web.UI.HtmlControls.HtmlTableCell && i <2)
                                        {
                                            if(chkShowHide.Checked)
                                            ((System.Web.UI.HtmlControls.HtmlTableCell)ctrlCell).Attributes["class"] = "Show";
                                            else
                                                ((System.Web.UI.HtmlControls.HtmlTableCell)ctrlCell).Attributes["class"] = "Hide";

                                            i++;
                                        }
                                        if (i == 2)
                                            break;
                                    }
                                }
                            }



                        }
                    }

                }


            }

Note: It is working very fine but i would suggest you to use TWO Repeaters. One with all columns and second with all - 2.
Show Repeater-1 when requred and on click of checkbox show the other one and hide the first.
(as the above solution may give you the performance hit).

Give a look to <asp:MultiView>. you may use two views in your page. and switch the selected view on check of checkbox.

ankit kumar from RIT · Answer 2 · 2013-09-19T22:33:00

<script type="text/javascript">
        var hide1 = true;
        

        function hideColumn1(tableId, colIndex) {
            var table = document.getElementById(tableId);

            if (table != null) {
                for (i = 0; i < table.rows.length; i++) {
                    if (hide1)
                        table.rows[i].cells[colIndex - 1].style.display = 'none';
                    else
                        table.rows[i].cells[colIndex - 1].style.display = '';
                }
                hide1 = !hide1;
            }
    </script>

<asp:repeater id="rpt" runat="server" >

       <headertemplate>
        <table  id="myTable" >
          <tr>
                <th >
                </th>
                  <th >
                </th>
                 .
                 .
                 .
        </tr>
           </table></headertemplate></asp:repeater>

<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 1)"  runat="server" checked="checked" />
<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 2)"  runat="server" checked="checked" />
<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 3)"  runat="server" checked="checked" />
.
.
.

hide and show table column using CheckBox

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