Check a checkbox in grdivew when Textbox change event is completed

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Hi Friends ,

I have a ajax calendar extender and the textbox where the selected date is shown , initially when the date was change I was rasising a javascript to change the Text forecolor , so that user can know which dates he/she has change

but the new requirement is to use the checkbox

can anyone please assist to tell me , how can I achieve a checkbox check when textbox box value is change

below is the code for example

Grdiview example sample item column where I am calling javascript

ASP.NET

<ItemTemplate>
                                                            <asp:Label ID="lblProjectStartDate" runat="server" Text='<%# Bind("StartDate") %>'
                                                                Visible="false"></asp:Label>
                                                                <asp:CheckBox ID="chkProjectStartDate"  Enabled="true"  runat="server" Checked='<%# (((bool)(Eval("IsProjectDate"))) ? (bool)false: (bool)true ) %>' />
                                                            <asp:TextBox ID="txPrjStartDate" runat="server" contentEditable="false" BorderStyle="None"
                                                                CssClass="tm-text" Text='<%# Bind("StartDate") %>' Visible="true" Width="82px"
                                                                onchange="txtChange('<%= chkProjectStartDate.ClientID%>');"></asp:TextBox>
                                                            <asp:ImageButton ID="imgProjectStartDate" runat="server" Height="20px" ImageUrl="~/Images/Shared/icon_calendar.jpg"
                                                                Width="20px" />
                                                            <asp:CalendarExtender ID="calPrjStartDate" runat="server" Enabled="True" Format="dd/MM/yyyy"
                                                                PopupButtonID="imgProjectStartDate" TargetControlID="txPrjStartDate">
                                                            </asp:CalendarExtender>
                                                            <asp:RequiredFieldValidator ID="rfSTDate" runat="server" ControlToValidate="txPrjStartDate"
                                                                CssClass="mandatory" Display="Dynamic" ErrorMessage="required" ValidationGroup="SavePS"></asp:RequiredFieldValidator>
                                                        </ItemTemplate>

JavaScript code

XML

<script type="text/javascript">
              function txtChange(chkCheckbox) {
                  chkCheckbox.checked = true;

              }
          </script>

Posted 2-Feb-14 17:02pm

Rickin Kane

Updated 2-Feb-14 17:26pm

Gitanjali Singh

v2

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Karthik_Mahalingam · Accepted Answer · 2014-02-02T17:33:00

Solution 1

Try this

HTML

<script type="text/javascript">
      function txtChange(chkCheckbox) {
          var td = chkCheckbox.offsetParent;
          var inputs = td.getElementsByTagName("input");
          for (var i = 0; i < inputs.length; i++) {
              if (inputs[i].type == 'checkbox') {
                  inputs[i].checked = true;
                  break;
              }
          }
      }
  </script>

HTML

onchange="txtChange(this);

Posted 2-Feb-14 17:33pm

Karthik_Mahalingam

Comments

Rickin Kane 2-Feb-14 23:48pm

Karthik , worked like a charmed , thanks a lot , was struggling since morning Many thanks and have a great week ahead

Karthik_Mahalingam 3-Feb-14 1:21am

welcome Rickin Kane :)