Web Forms :: Unable To Get Any Validation Controls To Work With Checkbox Lists?
Jun 14, 2010
I can't seem to be able to get any validation controls to work with checkbox lists. I tried adding a custom validator but just get an error message. Are there any work around because I would like to add custom validation and required validators?
I have all the properties of the class Person as required using Data Annotations.
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In the View I loop the List like this:
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Generated HTML:
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Result:
Does not work at all.
Other things I've tried:
Tried using these HTML Helper methods instead:
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Generated output:
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Result:
Interestingly, when I trigger a validation on the first textbox, it fires simultaneously for all of the textboxes. The rest of the textboxes do not trigger validation at all.
Looking at the generated id and names for the textboxes and their corresponding error text span element, they areall identical.
Anyone figure out how to use Client Validation with Data Annotations with a List in the view data, supporting Model Binding?
i am stucked in Checkbox Filteration issue... My problem is If first checkbox list is checked and user clicks on second checkbox list then i want to compare both checkboxes and populate result based on both checkboxes. using System;
using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Configuration; using System.Data.SqlClient;
I have tinkered with this a bit, and would like to know how to require fields based on the status of the checkbox.
The page I am referring to is located at www.libertyhtc.com/billsubmit.aspx.
Under Step 3, say, if a user checked the Television box, the textboxes for service provider, and authentication would be required. the upload file can be left blank if the user chooses to do so. This would be true of the Internet, Home Phone, and Cell Phone areas.
Now, later on, once the user clicks submit bill, I would like to have it go to a page that would bring up a page with the service agreement. The service agreement would pull data that they just put into the form before clicking that button. This step is necessary to allow the user to print out the page for their records.
Finally, there should be a button that, when clicked, will send all the data in the first form (located at www.libertyhtc.com/billsubmit.aspx) to a specified email account. I have sent data to an email before, but the code sample I used wanted the stmp details and logon information in the source code of the page, and for obvious reasons, i dont want users to know this.
SELECT MenuItemID, MenuItemType, ItemName, PizzaToppings, Description, GraphicFileName FROM MenuItems WHERE (MenuItemType = @MenuItemType) AND (ItemName = CASE WHEN @ItemName = - 1 THEN ItemName ELSE @ItemName END)I have created 2 drop-down box and a search button to display all records when one drop-down box is set to 'All"In the web-form I have set one of the drop-down box to value = -1 and appenddatabounditems to true.In the SQL I have typed the above but it does not work? Any one have an idea how this could be achieved with SQL?Essentially retrieving all records with the 'all' value selected.
I have checkbox in gridview. When I m getting data from database, I m getting correct value in checkbox.When I m trying to change the Checkbox value manually, I m unable to do that.As my database id Oracle, I dont have boolean value. So, I m storing using Char value. I m giving my code here. help me with the exact code in the checked changed.
I am making checkbox in datagrid, no matter what I try, I cannot get the right result from checkbox. Even I check or not check the checkbox, the result is false. It is like somehow the result is always the default value of the checkbox.
I have a GridView which is databound and I added two columns which are checkboxes. There is no link between the two columns. On a check box click , I need to check to see any other check boxes on the same column checked, if so, show a javascript confirmation . If click ok, need to do postback to update the database.if cancel, no change. The goal is ,I need to make sure that only one check box is checked in a check box column.
I want to validate a GridView row only if the checkbox is selected.
My page contains a gridview and 1 button, I have used custome template for few fields in GridView. All fields are currently validated using requiredfield validator.
The validation workd fine when I click the button, but now I want custome validation, means only the rows which are selected shoud be validated.
i got checkbox in gridview which put inside the itemtemplate. the problem is when i tick on the checkbox, the value for checked property still is a false value. Wat;s wrong?
If GridViewRDR1_Hidden.Rows.Count > 0 Then For Each row As GridViewRow In GridViewRDR1_Hidden.Rows Dim cb As CheckBox = CType(row.FindControl("chkstatus"), CheckBox ) If cb.Checked Then MsgBox("True") End If Next End If
i have a page with 2 Textboxes. in that page i use userControl with 2 textbox and a Save button now case is when i click on Save Button...i want to validate my controls. Both of page and both of usercontrol. in usercontrol is done by customvalidator... because of some specific conditions. now same time ... the controls of page should be validated for requred fieldvalitors, the issue is.... same type of usercontrol i have and which are on page same time. so i am not able to fire validation controls for parent page.
We are investigating using ASP.Net validations for client side validating. Is it possible to get the client side validators to work before an initial postback?
I am testing my web site to allow people to navegate despite having the javascript feature disabled but the asp validation control dont work in this mode.
I am working with master pages and I have the the text box I want to validate inside a panel to enable my nextbutton to work like enter like this:
i have datalist and on button click event i check the checkbox is checked or notfor this my code is
<asp:DataList runat="server" ID="dlstproductsize"> <ItemTemplate> <input type="checkbox" value="<%#eval("size_id")%>" id="chksize" runat="server" /> <%#Eval("name")%> </ItemTemplate> </asp:DataList> If chkallowsize.Checked = True Then For Each item In dlstproductsize.Items If (CType(item.FindControl("chksize"), HtmlInputCheckBox)).Checked = True Then ocommon.ProductMapingInsert(uniq_id.Text, CType(item.FindControl("chksize"), HtmlInputCheckBox).Value) End If Next End If
i get the error like object reference not set to the object
Is there a way to not trigger the validation until a checkbox on the form is checked? We have a form that a user does some work in, so they could be adding data throughout the day and saving it, but when it is complete and they check the completed box I want it to run the validation.
I have a webform with 2 listboxes and 2 checkboxes... When I check checkbox1 I want listbox1 to be disabled and checkbox2 to be disabled. Similarly, when I check checkbox2 I want listbox2 to be disabled and checkbox1 to be disabled. The code does not show any errors; however, when I run the Page everything appears as it is supposed to but when I check the boxes, nothing happens. What am I missing that will link the code on the .aspx.vb page to the objects on the .aspx page and make them work together?
now i am facing the problem to validate the checkboxlist is displaying dynamically, acutally at my present page i am doing the checkboxlist which is controled by another check box for the checkboxlist items for select and deselect, now i need to handle the validation for this checkboxlist for null value
I am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
I have a webform with 2 radio buttons and 1 checkbox. These work in IE and FireFox, but theye never get checked in Opera. Is this some problem with Opera or with my checbox/radio button?