Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 678
  • Last Modified:

Getting a user control's property's value on the client side

Hello,

I am creating a c# asp.net ascx control which I want to use in my applications.
The control has a textbox and 2 images and a  property "UpDownMaxValue" which I would like to get its value on the client side, when clicking one of the images.

 I know I can get the control's value, for example,  by using:
document.getElementById('<%= txtUpDown.ClientID %>').value

How can I get the "UpDownMaxValue" on client side?

Thank you

ascx code
----------
 
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="updown.ascx.cs" Inherits="ControlsTests.updown" %>
<script language="javascript">
    function increment()
    {
       var currentVal = document.getElementById('<%= txtUpDown.ClientID %>').value
       if(!isNaN(parseInt(currentVal)))
       {
            document.getElementById('<%= txtUpDown.ClientID %>').value = Number(currentVal) + 1;
       }
    }
    
    function decrement()
    {
       var currentVal = document.getElementById('<%= txtUpDown.ClientID %>').value
       if(!isNaN(parseInt(currentVal)))
       {
            document.getElementById('<%= txtUpDown.ClientID %>').value = Number(currentVal) - 1;
       }
    }
</script>
 
<table>
    <tr>
        <td>
            <asp:TextBox ID="txtUpDown" runat="server" Width="30px"></asp:TextBox>
             <img src="images/arrUp.gif" onclick="javascript:increment()" style="position:relative; left: -4px; top: -8px;" />
             <img src="images/arrDown.gif" onclick="javascript:decrement()" style="position:relative; left: -19px; top: 3px;"/>
        </td>
    </tr>
</table>
 
cs code
--------
 public int UpDownMaxValue
        {
            get
            {
                return this.MaxVal;
            }
            set
            {
                this.MaxVal = value;
            }
        }

Open in new window

0
Relegence
Asked:
Relegence
1 Solution
 
gops1Commented:
Is it not possible to get the maxvalue to a javascript variable
var a=<%=UpDownMaxValue%>
This just a rough idea since I am not sure about ASP
0
 
Oliver AmayaEntrepeneurCommented:
Hi, the way to get a property is by using the following syntax: UserControlClientID:PropertyName

Try this and see if it works:
var currentVal = document.getElementById('this:UpDownMaxValue').value;

Open in new window

0
 
RelegenceAuthor Commented:
joex911: - I got an "Object Required" error message
It got it working by sending the value of the parameter i needed in the call to the javascript function -
onclick="javascript:increment('<%= txtUpDown.ClientID %>', <%=MaxVal%>)"

MaxVal is a protected variable in the code behind which was set using the property's "set" method.
That is what solved the problem
0
 
modus_operandiCommented:
Closed, 400 points refunded.
modus_operandi
EE Moderator
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Get your problem seen by more experts

Be seen. Boost your question’s priority for more expert views and faster solutions

Tackle projects and never again get stuck behind a technical roadblock.
Join Now