Web Forms :: How To Reference CustomValidator
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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Similar Messages:
Jun 9, 2010
I am attempting to use a CustomValidator control to validate a FileUpload control that is present in my Gridview's EditItemTemplate
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I'm not calling the FileUpload control correctly, because I am getting the "Object reference..." error
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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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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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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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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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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]....
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Nov 24, 2010
I have a CustomValidator and has ServerValidate handler that does custom user input validation against values in database. The key point is the validator is inside of DetailsView. Using Asp.Net 2.0
Issue:
The ServerValidate handler is firing twice when I click a button inside the DetialsView. I am injecting a javascript to show my custom error message in a dialog. So due the event firing twice the dialog appears twice.
Reason for this behavior:
I am sure there isn't anything in my code doing this. It is how the DetailsView and Button control works. Similar issue is listed
here and "DenGn" has given some explanation.
I don't know if anything really exists that can stop this behavior. What I am going to do is use a counter and store it in session, then do the check to see if it is the second time fire, not to inject my script.
Does anyone have any better solution or any other valid reason why this is happening and how to stop it?
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Jun 9, 2010
I'm attempting to validate the width of an image to make sure that it is at least 130px wide before uploading it to the server
Below is how I tried to accomplish this, however, I was still able to upload images that were less than 130px wide without drawing the error as intended
[Code]....
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Jun 5, 2012
I have listbox where I am binding values from my database. Now my requirement is when user select values from listbox he/she can select only 4 values from listbox. If user select less than 4 or more than 4 values. I need to show validator that you can select only 4 values. How to achieve this?
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Jan 13, 2011
I have a custom validator, i want to change the Error message dinamically.
[Code]....
How can i use the 'val' parameter. Could tell me how the Error Message can be changed dynamically ?
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Jul 30, 2010
I am building a CustomValidator, here is my html declaration:
[Code]....
I can not figure out how to get client side javascript to change the error message of the CustomValidator, unlike server side I can change ErrorMessage property. Here is the client side javascript declaration:
[Code]....
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Apr 27, 2010
I have use my custom Contol which include textbox and customValidator in my aspx page.
iv noice it never get into the customValidator function.
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