Check Box/check Box List Server Side Validation In MVC 2?

Jun 28, 2010

How to validate check box/ check box list in Model?

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Javascript - Perform A Validation To Check Whether A TextBox Value Is Empty On Dropown List Selected Index Change Using Validation Controls?

Jan 19, 2011

I need to perform a validation to check whether a TextBox value is empty on Dropown list selected Index change using validation controls in asp.net

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Javascript - Check Box Validation For Atleast One Check Box Should Cheked In .net

Feb 22, 2011

I have asp.net form having 4 check boxes. not check box list. these 4 check boxes having the ValidationGroup property with same name say "chkValied". I have added Custom Validator there. now want to check at least on check box should be check out of these.

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C# - Apply Client Side Validation On Fileupload Control To Check Filename Contain Special Character?

May 24, 2010

I am working on ASP.NET3.5 platform. I have used a file upload control and a asp button to upload a file. Whenever i try to upload a file which contain special characterlike (file#&%.txt) it show crash and give the messeage "Server Error in 'myapplication' Application." A potentially dangerous Request.Files value was detected from the client (filename="...New Text &#.txt"). Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.

Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Files value was detected from the client (filename="...New Text &#.txt"). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. how can i prevent this crash using javascript at client side?

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Javascript - Client Side Validation And Server Side Validation In Java Script And Respectively ?

Sep 6, 2010

want to know that can we validate a control which is out side a form element in asp.net(server side validation)and outside a form element in html(client side validation) let's take a closer look

<html>
<body>
<input type="text" name="first name"/>
</body>
</html>

can we apply clien side validation on above text box by java script ?in asp.net

<form runat="server">
</form>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

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How To By-pass Client-side Validation To Verify Server-side Validation

Mar 1, 2011

I'm interested in identifying a means to verify the server-side validation is performing as expected, but need to bypass the client-side validation being done using ASP.NET validation controls. To test this, I've tried using the form Poster add-on to Firefox that allowed me to get/modify the page contents and post it, but the .NET framework interpreted the submission as harmful and threw an application error ("A potentially dangerous Request.Form value was detected from the client").I've created a WinForm that includes a WebBrowser control and I'm able to manipulate the contents of the web page and invoke the button click, but am interested in seeing how to allow a postback with invalid input values. I don't want to assume the server-side validation works (even though I do check if Page.IsValid on the server on postback).This submits the web form in the WebBrowseer control and the expected client-side validation fires:
extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click");
This is how I've manipulated some of the page contents (this just prevents submission):
mshtml.IHTMLDocument2 doc = extendedWebBrowser1.Document.DomDocument as mshtml.IHTMLDocument2;
string html = doc.body.innerHTML;
html.Replace("Page_ValidationActive = false", "Page_ValidationActive = true");
doc.body.innerHTML = html.ToString();
extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click");

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Web Forms :: How To Populate Back Radio-button List And Check Box List Comparing With The Character Of The String

Mar 7, 2011

I have string which came from the database,now i want to compare each charater of the string with the radiobuttonlist value and check box list value and select both radiobutton list and checkboxlist.

Here i write down some code but its just select 2 item of the each radiobuttonlist and checked all checkboxlist.

[Code]....

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C# - Max Length Validation Check?

Nov 25, 2010

In my table in the DB, I have these data types for some of its columns..

Address1 nvarchar(200)
Address2 nvarchar(200)
City nvarchar(200)
State nvarchar(200)

Now in my aspx page I need to display this data in text boxes. What should be the max length for the text boxes for Address1 text box, Address2 textbox, City's text box and state's according to what I have in my DB ?

How do I apply the max length validation check on these text boxes in my page ?

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Forms Data Controls :: Update A Date Field When Check Box Check In Detailsview

Jul 15, 2010

I have a detailsview with an update button one of the update fields is a checkbox which when is checked I want to automatically update a date field of when the checkbox was checked, am I going the right way with this code....... as I am getting a number of errors

Dim i As Integer
For i = 0 To detailsview2.Rows.Count - 1 Step i + 1
Dim row As GridViewRow = GridView1.Rows(i) [code]....

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Forms Data Controls :: Uncheck And Check The Check Box Inside Gridview Using Button?

Nov 12, 2010

i have a UP and DOWN buttons ouside a gridview and a checkbox inside the templated field .I will check the checkbox to sleect a row , after that if i click on UP button the checkbox above the selected checkbox should be selected.

same with when i click on DOWN button the checkbox below the selected checkbox should be selected.

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Forms Data Controls :: Check The Check Box In The ItemDataBound Event Or Will It Get Checked Automatically?

Jul 1, 2010

I have a check box in the grid.IF IsChecked has a value checkbox should be checked else not.Should i check the check box in the ItemDataBound event or will it get checked automatically.

<asp:DataGrid Runat="server" ID="gridProduct" AllowPaging="True">
<Columns>
<asp:TemplateColumn HeaderText="Employee Name">[code]....

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Forms Data Controls :: Uncheck / Check A Check Box Inside The Gridview

Jan 6, 2010

I have a grid view with two columns...one column has a no. like (123) and a check box....which user can checked or unchecked......all I need to do is that I need to disable the man handling of that check box......rather I would like to see a seperate grid view with the same no. of rows as of the first and in this gridview I may allow to type in or scan the no. and if this scanned or typed number matches any no. in the first gridview number then the corresponding check box should be checked/unchecked.

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Web Forms :: Create Dynamic Check Boxes In Check Box Selection?

Feb 11, 2011

when we select a check boxes creat dynamic check boxes. I have a main catagory check box when we select this main catagory check box creat subcatagory check boxes related to main catagory dynamically.

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Web Forms :: Unable To Check Whether Dynamically Created Check Is Checked Or Not

Aug 16, 2010

i generated dynamic checkbox n placed it in table cell( <td runat='server' id="trial"></td>) ,

i am not able to check whether check is checked when i click a button.

i recieve exeception :System.NullReferenceException was unhandled by user code

[Code]....

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How To Check Page Validation Error

Apr 4, 2010

An error occur something like this "Page.IsValid cannot be called before validation has taken place. It should be queried in the event handler for a control that has CausesValidation=True and initiated the postback, or after a call to Page.Validate. I make some work around but it didn't work
Here's my code in my Page Load event that an error occur

Code:

if (Request.QueryString["id"] != null)
{
txtID.Text = clsFunction.ReplaceString(Request.QueryString["id"].ToString());
if (!Page.IsValid)
{
Page.Validate();
cmdProceed_Click(sender, e);
}
}

In my page, I have this two validation group so if I am going to re-structure my above code like this

Code:

protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["id"] != null)
{
txtID.Text = clsFunction.ReplaceString(Request.QueryString["id"].ToString());
Page.Validate();
if (Page.IsValid)
{
cmdProceed_Click(sender, e);
}
}
}

I will not encounter the above mentioned error however, my second validation group trigger and the cmdProceed_Click is not executed.

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Validation - How To Extend A CompareValidator So Can Check

Jun 12, 2010

How to extend a compareValidator so i can check, if user has written some text in ControlToValidate then he must write some text in ControlToCompare too.

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Validation That Can Check The Duplicate Value Of Textbox?

Dec 22, 2010

Requirment is: while enterening the value you should know that this values is already we have used in data base for that textbox field.Please give code in .aspx and .aspx.cs with database if any

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AJAX :: How To Check DB Connection On Client Side

Nov 2, 2010

is there any way to check whether the DB connection is exist or not from aspx client side?

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Spellchecking - Asp With Client Side Spell Check?

Mar 25, 2011

whats the best client side spell check utility to use that would integrate well with asp.net/ c#?

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10 Check Boxes In One Page - How To Code To Allow User Only Check One

Nov 22, 2010

There are 10 check boxes in one page. How to code to allow user only check one?

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Web Forms :: Check Box Group / Code To Allow User Only Check One?

Nov 22, 2010

There are 10 check boxes in one page. How to code to allow user only check one?

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Web Forms :: Validation - Check Address Already In The Database?

Jan 27, 2011

I have a form with x fields on - its a signup form on a web page. I use standard validation controls which I use for validating on both client and server side, however I have an additional requirement I don't think is covered by the standard controls. When a user enters an email address and press enter, I validate that the address is not already in the database, by calling a stored procedure. This works fine but it would be great to validate it client side as with all the other entry fields.

I wouldn't know where to start with javascript so I have come up with the following solution. I have put a ontextchanged event on the email textbox and set to autopostback. When the user navigates away from the textbox validation is called and this seems to work ok. My question is have I missed something, and is there an easier soluyion using validation controls or is this an appropriate solution to the problem?

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JQuery :: Check Date Of Birth In Validation?

Nov 14, 2010

how to check the Date of birth in jquery validation or in Jquery....

I know how to check with the Regex but I want to do like real DOB checking ...

User should not enter today's or future date and must be greater than 1/1/1990...

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Check Page.Validate() On Client Side (Javascript) In Asp?

Oct 19, 2010

I want to check page validation on client side, like Page.Validate() but its server side method, is there any client side function which can work like Page.Validate() with javascript.

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Web Forms :: To Handle The Validation To Check The File Size?

Oct 26, 2010

In my application the user uploads three files ( Resume, Cover Letter, Selection Creteria).

I want users not to upload more then 4 MB files, so In my web.confing file I have allowed max of 5 MB. <httpRuntime maxRequestLength="5000"/>. I did this so that I can validate the file and give user a message that they are trying to upload more then 4 MB file.

It all works fine if the user is only uploading resume. But if the user uploads all three files of size 4MB then my validation does not work and it goes to connection time out.

How can i handle the validation to check the file size of all 3 files?

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