Web Forms :: Create A Customvalidator For The Checkboxlist?
Mar 29, 2010
I found this article [URL] on how to create a customvalidator for the checkboxlist. Followed all the way thru, but when i load my page i get the following error, how can it exist in 2 places? How can i resolve this to use the validation on the page?
Compiler Error Message: CS0433: The type 'CustomValidators.RequiredFieldValidatorForCheckBoxLists' exists in both 'c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files
oot294f506e54827e67assemblydl3b4b5a368e15533_8dcfca01RequiredFieldValidatorForCheckBoxLists.DLL'and 'c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files oot294f506e54827e67App_Code.5yh9snf-.dll'
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Similar Messages:
Jan 12, 2011
I want to use CustomValidator for CheckBoxList web control. I tried the code found on:[URL]
But it is not working for me. Nothing happens. No error.
My code (based on the provided link) is as follows:
[Code]....
But it doesn't execute client side CheckItem2 method.
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Feb 8, 2011
how can i make dynamice fileupload and customvalidator on my page where customvalidator have some type of file for example xls,ppt just;
in onther word when user select file where it not in ajenda must customvaliator work else nothing do
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Feb 16, 2011
Does anyone know if it is possible to create a vertically scrollable Checkboxlist WITHOUT using a DIV
I have to build my controls using server code, hence cannot use a div.
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Aug 3, 2010
First, I use vs 2010 and asp.net 4.0.
I have a page, there is a pre-created checkboxlist, for certain people it should be possible to add new checkboxes to the list.How should they do that? Here is what I have in mind.
Next to the checkboxlist there is a button (Add new items), when clicked a popup should be shown, there the name for a column (in a pre-created table MSSQL) can be entered (this column is only a text column), column is created and when clicked ok, the checkbox is added to the list (checkbox binded to the just created column).
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Oct 25, 2010
I have a little question about building controls at runtime.
In my case I would like to create a checkboxlist in my page_load event
[Code]....
This control is a part of a wizard-Control. At the end after clicking the finisch-Button, the selected values have to sent by email to me. My question is, how can I get the ID of the Checkboxlist-Control whitch was build at runtime?I tried following workaround
[Code]....
But I get following error-message:
System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
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Jul 20, 2010
I'm using asp.net mvc-2 and would like to know if there's a way to create a listbox with a checkboxlist inside of it?
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May 24, 2010
I have a requirement to create our own MultiValueControls like CheckBoxList, RadioButtonList, DropDownList. I need a headstart, the usercontrols should have all the Even Handler implementation, setters and getters. Also,i will have a table which has the control properties(width, height, cssclass, etc) stored for that control. HOw to dynamically set the properties from the database to the usercontrol. This is required, because the requirement is for the Dynamic Form creation, I store all these ascx controls in the database and all the properties of the usercontrols in another table and map them dynamically.
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May 7, 2015
I need to charge my checkboxlist1 from database, eg load fruits and vegetables. When selecting fruits, new filter based on the previous selection in my checkboxlist2. for specific search.
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Oct 10, 2010
I need to create a server control which contains a checkboxlist with a scrolling div using asp.net server control.And also I need to display the checked items in any control by clicking on a button. the code needed in the asp.net server control page in C#.....
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Sep 2, 2010
I have two CustomValidators, both of which function in the same way (call a query and check if a particular value is available in the DB), the only difference is the query itself.
Rather than writing the same function definition in the code-behind, I would like to find a way to execute a particular query depending on which CustomValidator called the function (I guess using the CustomValidator's ID) so if I have the follwing:
[Code]....
How can I check in the code behind , which validator called the function "Check"??
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Dec 2, 2010
I am clicking one linkbutton to check the validators clientside in the panels. This works well in IE, but not in Firefox. When I click the button, it does not even hit the validateLength function
[Code]....
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Jan 3, 2011
Sample code below. Either I am doing something wrong or missing something in 4.0.
1: The function CheckText fires upon button click in IE but not in FF.
2: The function CheckText fires upon button click in IE /FF when the site runs under 2.0 or 3.5.
[Code]....
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Apr 20, 2010
I have a custom validator which validates three text boxes. my code is,
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Jan 25, 2011
How can I set an error message in a CustomValidator and show this with the ValidationSummary after the submit with JavaScript.Thus, I want to trigger the Customvalidator with Javascript.
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Jan 30, 2010
I try to use CustomValidator ClientValidationFunction. The issue I have is CallBack using Asynchronous call which make it difficult to detect when the call is complete.
var callbackresult;
function ValidateSomething(src, args)
{
MyCallBackMethod(param); How shall I check when the call back is complete??? Any workaround?
if(callbackresult == 'true')
args.IsValid = true;
else
args.IsValid = false;
}
function CallBackRef(result, context)
{
callbackresult = result;
}
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Mar 8, 2011
I'm trying to compare two dates to make sure one is not greater than the other using a customvalidator and validatorcallout. However, I can't seem to get it to work and I've tried many examples but I can't seem to get what I want to work
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Jan 4, 2011
i have written a dynamic formular designer that generates all its form elements from a database at runtime.
The controls of the forms are entered into a table.
The HTML Table is the value that i return to the caller of my method so the caller can display the table insidehis own page.
I try to use ClientSideValidation to check the inputs of the form fields. So i generate a CustomValidator and try to add itto my table. But then there are some client side funtions missing, e.g. Page_ClientValidate().
When I add a static CustomValidator to the aspx Page (of the caller) the functions are existing. But i don't want to place a static CustomValidator on each ASPX Page that uses my Formulardesigner...
But how can i get the javascript functions added to the page at runtime? I added my javascript code for clientvalidation functions withClientScriptManager and RegisterStartupScript but how can i add the javascript functions for the CustomValidator add runtime?
Here's a very small snippet of my code:
[Code]....
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May 20, 2010
i have 2 texztboxes for password function. Now i want to use the customvalidator to compare the 2 textboxes instead of the comparevalidator. I used a cs code like this bloew, but it doesnt work.
[Code]....
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Feb 1, 2010
I have this:
<asp:TextBox ID="tbxCustomer" runat="server" Font-Size="X-Small" Width="257px"></asp:TextBox>
<asp:CustomValidator ID="tbxCustomer_RequiredFieldValidator" runat="server" ClientValidationFunction="CheckRequiredField" ControlToValidate="tbxCustomer" EnableClientScript="true" ValidateEmptyText="true" />
So I want my javascript function fired even with empty text, but it doesn't. Is there a workaround or should just use jQuery to do this?
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Mar 19, 2010
I have a CheckBoxList generated from the code behind file that I want to validate with a CustomValidator.However, I don't succeed in stating the C# function that it has to use, and I can't seem to bind it to the CheckBoxList control.
[Code]....
and then something like:WorkCheckboxValidator.ControlToValidate = WorkScheduleCheckboxList.ToString();
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May 7, 2015
I want my Start Time and End TIme should not be equal to each other and I want the End TIme should not go beyond the Start TIme. For example:
Start Time = 8:30 AM
End Time = 8:00 AM
The above example should have an error because the End Time go beyond the Start Time.
My HTML code:
Time In:
<cc1:MaskedEditValidator ID="mevStartTime" runat="server" ControlExtender="meeStartTime"
ControlToValidate="txtStartTime" IsValidEmpty="False" EmptyValueMessage="Time is required "
InvalidValueMessage="Time is invalid" Display="Dynamic" EmptyValueBlurredText="Time is required "
InvalidValueBlurredMessage="Invalid Time" ValidationGroup="MKE" ForeColor="Red" />
<asp:TextBox ID="txtStartTime" runat="server" Text='<%# Bind("StartTime", "{0:t}") %>'
[Code] ...
Time Out:
<cc1:MaskedEditValidator ID="MaskedEditValidator1" runat="server" ControlExtender="meeStartTime"
ControlToValidate="txtEndTime" IsValidEmpty="False" EmptyValueMessage="Time is required "
InvalidValueMessage="Time is invalid" Display="Dynamic" EmptyValueBlurredText="Time is required "
InvalidValueBlurredMessage="Invalid Time" ValidationGroup="MKE" ForeColor="Red" />
<asp:TextBox ID="txtEndTime" runat="server" Text='<%# Bind("StartTime", "{0:t}") %>'
[Code] .....
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Dec 20, 2010
I have two lines of dropdown menus. There are 3 dropdown in each line (together 6). First dropdown in each line is "independent". The second and third are dependent. If user selects second, page loads and user can then selects item in third. So user have option to select first OR second and third in each line.
.ASPX code:
[Code]....
Since I've found out that you can't validate dropdown controls directly with CustomValidator I've wrote few lines of code for each of dropdowns to insert some values in txtBx_Cln1n2 which will be hidden when the page will be finished.
[Code]....
Unfortunately the code for CustomValidator have some bugs. If user doesn't select anything error message is shown. But if he choose 1 employee and then second and then select (I doubt that anybody will do this but I want to be sure and prevent as much exceptions as possible) the first item in one of the dropdowns ("all employees" or "employees by group") the custom Validator will allow execution of code for link button although the validation code should prevent this.
[Code]....
I know I could this a little better since code is quite complicated if I want to tell the user which employee he/she forget to enter. I've tried instead of SelectedItem.Value also SelectedIndex != 0 but the problems are the same.
I couldn't validate this without the use of textbox. But this method is also making complications since user can select 2 employees and then in one of the selected dropdown change selection to index = 0. Maybe I have to disable viewstate on all dropdowns? But this would probably affect INSERT of data?
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Jan 11, 2010
I have a customvalidator to validate the sum of 2 drop downs.. the validation code is working, because if the sum doesnt match my logic the page is not submitted, but if i select values that match my logic, the page is submitted.. so i know the logic is working, but the error message is not working.. and not sure why..
Some background, last week i had this working based on additional controls, but the business decided they wanted less questions on the form, so all i did was remove the controls from the validation and updated the logic to make sure it was only calculating against the existing controls. reminder that the validation is working( meaning that the page is not being submitted because it failed ) but the error message doesnt display on the page, so no one knows what is happening..
Here is my code
[Code]....
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Mar 16, 2010
i am using data grids on my web page, and on edititemtemplate i have custom validators for the drop down list ( ddl), most of them they do the same job which is to test if the user did select from the ddl or not.
i want to point all of these drop down lists to the same function and pass to this function the ddl.ClientID
how can i do this?
i tried this but it didn't work with me
[Code]....
[Code]....
[Code]....
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