I am having N numbers of Text boxes those are generating dynamically. I want to validate each textbox for Formate HH:MM:SS PM/AM so i dynamicaly create the validation control . but as the dynamic textbox has no ID , so what i have to pass to the Validation control for ControlToValidate Property ?
View 1 RepliesHow do get the value in the JavaScript function identified in ClientValidationFunction property that was entered in the control that was identified in the ControlToValidate property of a asp:CustomValidator control?
function MyValidateFunction(sender, args) {
//want to get value of MyControl
}
<asp:CustomValidator
ID="cvAlarmedLocationAddress"
runat="server"
ControlToValidate="MyControl"
ClientValidationFunction="MyValidateFunction"
Text=""
/>
I've been ditched by my developer who's run off without finished a project.
View 11 RepliesI've searched a fair bit round and tried a number of potential solutions, suggested on their respective threads on various sites, to which none have worked for me.
My objective is to make sure the date entered, and to be stored, is not 'less than' (before) the present datei.e. Booking a reservation for a restaurant.
The first is:
"The ControlToValidate property of 'cvDate' cannot be blank..."
I've tried specifying it in page_load and .aspx source, the same has happened in both, in addition to ValueToCompare. I cant understand why it cant detect it?
C# (ControltoValidate):
Csharp Code:
[code]....
<asp:TextBox ID="TextBox1" runat="server" />
<asp:CustomValidator ID="CustomValidator1" runat="server"
ClientValidationFunction="ValidationFunction1"
ControlToValidate="TextBox1"
Display="Dynamic" />
And a validationFunction:
function ValidationFunction1(sender, args)
{
}
And i would like to know if, inside the function I could get the Control to validate something like: var v = sender.ControlToValidate;
I am maintaining some Asp.net code. When one of the pages displays, a bulleted list of text is displayed on the web form. Somehow the bulleted text is passed in with a LITERALcontrol. I looked at the property of this LITERAL control and it is defined as "Pass Through".
I was confused because their was no C# code that was used to populate the LITERAL control. So basically with google I found out that the LITERAL must be using something called a "Pass through property"to pass in the data. Does anyone know anything about this? It seems very strange because I have no idea where the data is coming from.
So I hope I am on the right path here figuring out that a pass through property might be getting used.
Can someone me to understand this more, as I am so confused.
<table cellspacing="0" cellpading="0" width="100%" border="0">
<tr>
<td rowspan="2">
<td>
<ASP:LITERAL id="litMessage" runat="server"></ASP:LITERAL>
</td>
</tr>
how to pass parameters to the selectmethod property of the objectdatasource control.
View 1 RepliesLine 44, Column 69: there is no attribute "AlternateText" You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).
This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.
How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page, see the FAQ item on valid flash. I can't figure this out.
Here is data binding expression (dropdown list is nested in gridview)
[Code]....
Code Behind has function which looks like
[Code]....
The whole reason for passing the reference is to save round trip to database and not to use SESSION
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");
I need to use the email for the username of a CreateUserWizard without making the user also fill out the Email box. I followed an article here...
[URL]
I need to pass a value from several pages back and end up populating the CreateUserWizard UserName textbox. The property is getting into the textbox successfully on page load, but the problem is after I submit, I get a message saying to "Please use a valid email address". This does not appear when I normally typed in a email for a username. Only when I am populating using the Server.Transfer method. Here is some of my code...
[Code]....
Does anyone know how to do validation for a unique property or can point me to an example? Say I have a grid of movies and I do an edit or an insert. If I set the textbox 'Title' to be 'A really cool movie'. How would I do the validation to ensure the database doesn't already contain a movie by this title? Would I use a CustomValidator? I tried doing this but when I was checking the text in the textbox it was coming through as an empty string.
View 1 RepliesI have site with two text boxes and dynamically create validation control. This is code from .aspx file:
<form runat="server">
<asp:TextBox AutoPostBack="true" ID="TextBox1" Text="" runat="server" Width="200px"
OnTextChanged="TextBox1_TextChanged"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server" Visible="True" Width="200px"AutoPostBack="true"></asp:TextBox>
<asp:Panel ID="Panel1" runat="server">
</asp:Panel>
<asp:TextBox ID="ValidationTB" runat="server" Visible="true"></asp:TextBox>
</form>
This is my code-behind:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (TextBox2.Visible)
{
if (!String.IsNullOrEmpty(TextBox1.Text) && String.IsNullOrEmpty(TextBox2.Text))
{
RequiredFieldValidator RequiredFieldValidator1 = new RequiredFieldValidator();
RequiredFieldValidator1.Enabled = true;
RequiredFieldValidator1.ErrorMessage = "Second field required";
RequiredFieldValidator1.Display = ValidatorDisplay.Dynamic;
RequiredFieldValidator1.ControlToValidate = "TextBox2";
Panel1.Controls.Add(RequiredFieldValidator1);
RequiredFieldValidator1.Validate();
}
if (!String.IsNullOrEmpty(TextBox2.Text) && String.IsNullOrEmpty(TextBox1.Text))
{
RequiredFieldValidator RequiredFieldValidator1 = new RequiredFieldValidator();
RequiredFieldValidator1.Enabled = true;
RequiredFieldValidator1.ErrorMessage = "First field required";
RequiredFieldValidator1.Display = ValidatorDisplay.Dynamic;
RequiredFieldValidator1.ControlToValidate = "TextBox1";
Panel1.Controls.Add(RequiredFieldValidator1);
RequiredFieldValidator1.Validate();
}
if (!String.IsNullOrEmpty(TextBox2.Text) && !String.IsNullOrEmpty(TextBox1.Text))
{
if (Convert.ToDateTime(TextBox2.Text) < Convert.ToDateTime(TextBox1.Text))
{
ValidationTB.Text = null;
RequiredFieldValidator RequiredFieldValidator1 = new RequiredFieldValidator();
RequiredFieldValidator1.Enabled = true;
RequiredFieldValidator1.ErrorMessage = "Bad range of dates";
RequiredFieldValidator1.Display = ValidatorDisplay.Dynamic;
RequiredFieldValidator1.ControlToValidate = "ValidationTB";
Panel1.Controls.Add(RequiredFieldValidator1);
RequiredFieldValidator1.Validate();
}
}
}
}
protected void TextBox1_TextChanged(object sender, EventArgs e)
{
RegularExpressionValidator RegularExpressionValidator1 = new RegularExpressionValidator();
RegularExpressionValidator1.ValidationExpression = @"^[0-9]{4}-(((0[13578]|(10|12))-(0[1-9]|[1-2][0-9]|3[0-1]))|(02-(0[1-9]|[1-2][0-9]))|((0[469]|11)-(0[1-9]|[1-2][0-9]|30)))$";
RegularExpressionValidator1.Enabled = true;
RegularExpressionValidator1.ErrorMessage = "Bad format of date";
RegularExpressionValidator1.Display = ValidatorDisplay.Dynamic;
if (!String.IsNullOrEmpty(TextBox1.Text))
{
RegularExpressionValidator1.ControlToValidate = "TextBox1";
Panel1.Controls.Add(RegularExpressionValidator1);
RegularExpressionValidator1.Validate();
}
if (!String.IsNullOrEmpty(TextBox2.Text))
{
RegularExpressionValidator1.ControlToValidate = "TextBox2";
Panel1.Controls.Add(RegularExpressionValidator1);
RegularExpressionValidator1.Validate();
}
}
}
TextBox ValidationTB is just to make validate on empty control. This validation doesn't work, when I try:
1. To first textbox enter for example: 2009-09-09
2. To second textbox enter for example: 2009-10-09 Now, everything is OK.
3. I change my first textbox on for example 2009-12-09 I get error Bad range of dates - it's OK.
4. I correct first textbox on 2009-09-09, message disappear-OK.
5. Again enter to first textbox 2009-12-09 - I don't have error, but it should be.
What strange - in debug mode I can see, that in code:
if (Convert.ToDateTime(TextBox2.Text) < Convert.ToDateTime(TextBox1.Text))
{
ValidationTB.Text = null;
RequiredFieldValidator RequiredFieldValidator1 = new RequiredFieldValidator();
RequiredFieldValidator1.Enabled = true;
RequiredFieldValidator1.ErrorMessage = "Bad range of dates";
RequiredFieldValidator1.Display = ValidatorDisplay.Dynamic;
RequiredFieldValidator1.ControlToValidate = "ValidationTB";
Panel1.Controls.Add(RequiredFieldValidator1);
//In debug window: RequiredFieldValidator1.ControlToValidate = "TextBox2"
RequiredFieldValidator1.Validate();
}
instead of ValidationTB control, RequiredFieldValidator1.ControlToValidate is set to TextBox2 (it isn't empty, so I haven't error message). Why TextBox2 is set to RequiredFieldValidator1.ControlToValidate instead of ValidationTB textbox and how I could solve this?
Here is my ASP code:
<asp:GridView ID="WagerTable" runat="server" AutoGenerateColumns="False" CssClass="basix" >
<columns>
<asp:BoundField DataField="GameName" HeaderText="Game Name" />
<asp:BoundField DataField="Amount" HeaderText="Amount" />
<asp:BoundField DataField="Comment" HeaderText="Comment" />
<asp:BoundField DataField="CreateTime" HeaderText="Create Time" />
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton runat="server" Text="Accept" OnClick="AcceptWager" ID="AcceptButton" />
</ItemTemplate>
</asp:TemplateField>
</columns>
</asp:GridView>
This is my code behind:
protected void Page_Load(object sender, EventArgs e)
{
AccountManager accManager = new AccountManager();
MembershipUser newUser = Membership.GetUser(HttpContext.Current.User.Identity.Name);
Guid UserId = (Guid)newUser.ProviderUserKey;
String myConnectionString = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
SqlDataReader reader;
using (SqlConnection myConnection = new SqlConnection(myConnectionString))
{
myConnection.Open();
String selectSql = "SELECT * FROM aspnet_Wagers INNER JOIN aspnet_Games ON aspnet_Wagers.GameId = aspnet_Games.GameId";
SqlCommand myCommand = new SqlCommand(selectSql, myConnection);
myCommand.Parameters.AddWithValue("@UserId", UserId);
reader = myCommand.ExecuteReader();
WagerTable.DataSource = reader;
WagerTable.DataBind();
myConnection.Close();
}
}
protected void AcceptWager()
{
}
I want to be able to have it so that each LinkButton can pass through an ID from the database as an parameter into the AcceptWager function and then I will do with it from there. The sql column for the ID is WagerId. It is returned in that query that i execute, so it is already in the reader.
I have a page where I'm using jQuery Grid. through routing I'm reaching that page and have an id being passed. eg. localhost/MyController/MyAction/5/ -- 5 being the ID passed. as I'm using jQuery Grid in the same page and to get data I'm setting url property
like this localhost/MyController/MyJQueryDataAction/ -- but for this also I need the above mentioned ID. how can I get that ID and pass it in to jQuery Grid url property on page.
I have a viewmodel with a property of a model class type. I set some properties in the model class to be able to show it to the user but then when I make a post, the model gets validated. How to overcome this? I don't want to enforce the DataAnnotations contraint in this case....
public class TheViewModel
{
TheModel TheModel { get; set;}
}
[code]...
We're developing a business ASP.NET application. Is it better to pass an entire entity to a method or pass each property of this entity as parameters? What is the best practice?
Case 1. Pass Customer entity to a manager - InsertCustomer(Customer cust)
Case 2. Pass each property as a parameter - InsertCustomer(string name, string address...etc)
i am using COM Component in my asp.net project. My problem is that i am not able to assign the Arabic string to the property of that component. Whe i debug it shows that input textbox has arabic text and when i assign that text to the property of my COM Component then it shows that in the property is save. where i have to change my .net code. is there any settings related to globalization etc.
View 1 RepliesI have a GridView and I need update some data inserting HTML CODE; I would need this data been stored encoded and decoded on request.
I cannot in any way disable globally "Request Validation" and not even at Page Level, so I would need a solution to disable "Request Validation" at Control Level.
At the moment I am using a script which should Html.Encode every value being update, butt seems that "Request Validation" start its job before event RowUpdating, so I get the Error "Page A potentially dangerous Request.Form ... ".
void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
foreach (DictionaryEntry entry in e.NewValues)
{
e.NewValues[entry.Key] = Server.HtmlEncode(entry.Value.ToString());
}
PS I USE Wweb Controls not MVC
I have a simple form on an ASP.NET MVC site that I'm building. This form is submitted, and then I validate that the form fields aren't null, empty, or improperly formatted.
However, when I use ModelState.AddModelError() to indicate validation errors from my controller code, I get an error when my view is re-rendered. In Visual Studio, I get that the following line is highlighted as being the location of the error:
<%=Html.TextBox("Email")%>
The error is the following:
NullReferenceException was unhandled by user code - object reference not set to an instance of an object.
My complete code for that textbox is the following:
<p>
<label for="Email">Your Email:</label>
<%=Html.TextBox("Email")%>
<%=Html.ValidationMessage("Email", "*") %>
</p>
Here's how I'm doing that validation in my controller:
try
{
System.Net.Mail.MailAddress address = new System.Net.Mail.MailAddress(email);
}
catch
{
ModelState.AddModelError("Email", "Should not be empty or invalid");
}
return View();
Note: this applies to all of my fields, not just my Email field, as long as they are invalid.
I have a model class which consists of some other classes as its properties.The name class is named Person and has an Address property which is another class and has certain required properties such as City or Line1.The 'required' constrain for 'City' and 'Line1' is properly observed by the server-side validation by the client-side validation seems to be ignoring them.I have properly called Html.EnableClientValidation and have all the required scripts in place.Is there a way to force client-side validation for the described scenario or I'm gonna have to flatten the model class?
View 7 RepliesThis is probably going to end up as a stupid question, but countless research has offered me no results. I know there are different types of errors I want to check for, and when I should be throwing an exception for "exceptional" errors, and that I should create validating functions for input and other checks. My problem is, how do I send an error back to a page when the data entered fails in a separate class?
For Example:
User input entered in Page1.aspx, click calls Submit() in Class.vb Class.vb finds that input is invalid How do I update Page1.aspx label to say "Hey, that is not right".
In my model, it seems that Validate() is only called AFTER both properties pass validation.
public class MyModel : IValidatableObject
{
[Required]
public string Name { get; set;}
[Required]
public string Nicknames {get; set;}
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
if(Nicknames != null && Nicknames.Split(Environment.NewLine.ToCharArray()).Count() < 2)
return yield result new ValidationResult("Enter at least two nicknames, new [] { "Nicknames" });
}
}
When a user enters a single line of text in the Nicknames text area but leaves the Name text box empty, only the Required error message for the Name property is displayed. The error message that should be displayed from the Validate() function never shows up.
Only after entering a name in the Name text box and some text in the Nicknames text is the Validate() function called.
Is this how it's supposed to work? It seems odd that a user is shown an error message on a subsequent page when the error is being caused on the current page.
Can you validate just a single property with the Fluent Validation Library, and if so how? I thought this discussion thread from January of 2009 showed me how to do it via the following syntax:
validator.Validate(new Person(), x => x.Surname);
Unfortunately it doesn't appear this works in the current version of the library. One other thing that led me to believe that validating a single property might be possible is the following quote from Jeremy Skinners' blog post:
"Finally, I added the ability to be able to execute some of FluentValidation's Property Validators without needing to validate the entire object. This means it is now possible to stop the default "A value was required" message from being added to ModelState. "
However I do not know if that necessarily means it supports just validating a single property or the fact that you can tell the validation library to stop validating after the first validation error.
I have this code..
[code] ...
I am checking this on my telerik grid..I have add new button on my telerik grid when I click add new I can able to insert new record but here my validation message are showing minmum and maximum length perfectly..but if I dint enter anything when I hit insert my validation message showing me as'{ Property name }' should not be null?I dont know why my RequiredMessage is not working on my Empty Textboxes?