SHOW CONFIRMATION MESSAGE YES OR NO IN ASP.NET

Maria Susan

Total Post:29

Points:107
Posted by  Maria Susan
C# 
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I have drop-down box where users can select Yes or No, if user selects Yes from the drop-down then i want to show a confirmation box that shows Yes or No option. If only user selects Yes in the confirmation box then i want to proceed calling my other function which makes an update to the backend database. If user selects No in the confirmation box then i don't want to proceed and cancel the operation. Here is my drop-down code:

 

OnSelectedIndexChanged="CheckDropDownSelection"

                        runat="server" AppendDataBoundItems="true" Height="16px">

                        <asp:ListItem Text="-- Please Selet --" Value="-- Please Selet --"></asp:ListItem>

                        <asp:ListItem Text="YES" Value="YES"></asp:ListItem>

                        <asp:ListItem Text="NO" Value="NO"></asp:ListItem>

                    </asp:DropDownList>

here is my code behind:

 

protected void CheckDropDownSelection(Object sender, EventArgs e)

    {

        if (ddl_CloseTask.SelectedValue == "YES")

        {

            CloseTask();

        }

        else

        {

        }

    }

 

    protected void CloseTask()

    {

        // here is where i close the task

    }

  1. sandy taylor

    Post:46

    Points:324
    Re: Show Confirmation Message Yes or No in Asp.Net

    The code has too many Yes/No. I hope it won't confuse to user -

     

    If a user selects YES in DropDownList, a Confirmation Message will be prompted.

     

    If the user selects YES in Confirmation Message, DropDownList will post back to server.

     

    <asp:DropDownList ID="ddl_CloseTask" Width="157px"

       AutoPostBack="true"

       OnSelectedIndexChanged="CheckDropDownSelection"

       runat="server"

       AppendDataBoundItems="true" Height="16px">

       <asp:ListItem Text="-- Please Selet --" Value="-- Please Selet --"></asp:ListItem>

       <asp:ListItem Text="YES" Value="YES"></asp:ListItem>

       <asp:ListItem Text="NO" Value="NO"></asp:ListItem>

    </asp:DropDownList>

     

    <script type="text/javascript">

        var selectlistId = '<%= ddl_CloseTask.ClientID %>',

            selectlist = document.getElementById(selectlistId);

     

        selectlist.onchange = function() {

            if (selectlist.options[selectlist.selectedIndex].value == "YES") {

                if (confirm("Are you sure you want to do this?")) {

                    __doPostBack(selectlistId, '');

                }

            }

        };

    </script>

  1. Ankit Singh

    Post:341

    Points:2389
    Re: Show Confirmation Message Yes or No in Asp.Net

    This is how you can achieve with sever and client side code

     

    attach event of client code mostly in page_load

     

    yourDropDownList.Attributes["onChange"] = "jsFunction(this);";

    Client script

     

    function jsFunction(mlist){

      var myselect = mlist;

      if(myselect.options[myselect.selectedIndex].value == "YES")

      {

        if(confirm("Delete item!"))

        {

          $.ajax({

           type:"POST",

             url: window.location.pathname + "/CloseTask";,

               data: dataString,

              contentType:"application/json; charset=utf-8",

                dataType:"json",

             error:

                      function(XMLHttpRequest, textStatus, errorThrown) {

                             $(errorlableid).show();

                             $(errorlableid).html("Error");

                      },

             success:

                 function(result) {

     

                    }

             }

             }

          });

        }

      }

    }

    serverside code

     

    [WebMethod]

    protected void CloseTask()

    {

        //code to close task

     

    }

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