Solved

My range validator is not working

Posted on 2008-10-23
3
344 Views
Last Modified: 2010-08-05
I have a textbox control within a update panel that I need to validate. Why is the validation not working.
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
           <ContentTemplate>
               <asp:RangeValidator ID="RangeValidator3"
                ControlToValidate="LoadNumberListBox"
                Type="Integer"
                 MaximumValue="5000000"
                  MinimumValue="1"
               runat="server" ErrorMessage="Please enter your load number"
                   
                   style="top: 500px; left: 505px; position: absolute; height: 16px; width: 206px"></asp:RangeValidator>
            <asp:Label ID="loadLabel" runat="server"
            style="top: 521px; left: 473px; position: absolute; height: 16px; width: 103px"
            Text="<b>Load Number:</b>"></asp:Label>          
           
               <asp:ListBox ID="LoadNumberListBox"
               style="top: 520px; left: 576px; position: absolute; height: 30px; width: 128px"
               
                runat="server" DataSourceID="SqlDataSource10" DataTextField="OrderID"
                   DataValueField="OrderID" AppendDataBoundItems="True"></asp:ListBox>
           
               <cc1:ListSearchExtender ID="LoadNumberListBox_ListSearchExtender"
                   runat="server" Enabled="True" TargetControlID="LoadNumberListBox">
               </cc1:ListSearchExtender>
0
Comment
Question by:soccerman777
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 10

Accepted Solution

by:
Bane83 earned 500 total points
ID: 22787717
RangeValidator only validates range and doesn't care if no item is selected.  You'll also need a RequiredFieldValidator, but in order to use this, you'll also need to add an extra item to the list such as "Select:" with a value which won't be in your range (-1 as an example) and the RequiredFieldValidator will need to have InitialValue="-1" (or whatever value you give to the new item.
0
 

Author Comment

by:soccerman777
ID: 22788205
Sorry bane I should have put that in my first post. I am using  
LoadNumberListBox.Items.Insert(0, New ListItem("Choose...", ""))

I also have a required field validator however since you mentioned it I realized that it was not in the update panel so it was not working I put it into the update panel and they both work. I am sure you would have saw that if I had put all of the code in my question.

THANKS
0
 

Author Closing Comment

by:soccerman777
ID: 31509272
Sorry bane I should have put that in my first post. I am using  
LoadNumberListBox.Items.Insert(0, New ListItem("Choose...", ""))

I also have a required field validator however since you mentioned it I realized that it was not in the update panel so it was not working I put it into the update panel and they both work. I am sure you would have saw that if I had put all of the code in my question.

THANKS
0

Featured Post

Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I recently went through the process of creating a Calendar Control of events with the basis of using a database to keep track of the dates that are selectable, one requirement was to have the selected date pop-up in a simple lightbox.  At first this…
IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…

691 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question