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Dynamically adding validation controls
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Vaishali DotNet
-- Copied from [aspngfreeforall] to [aspng-validators] by Charles M. Carroll <Click here to reveal e-mail address> --

Hi,
I am adding required field validation controls to the
form dynamically. It validates as expected by it never
shows the errormessage on the screen. It does prevent
post back. How do I solve this?
Thanks.
-Vaishali

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Steven A Smith (VIP)
What does it show? There are two parts that a ValidationControl may show,
its Text or its ErrorMessage. These are also affected by the presence of a
ValidationSummary control on the page. Some example code would help.

Steve

----- Original Message -----
From: "Vaishali DotNet" <Click here to reveal e-mail address>
To: "aspng-validators" <Click here to reveal e-mail address>
Sent: Friday, March 29, 2002 5:26 AM
Subject: [aspng-validators] Dynamically adding validation controls

> -- Copied from [aspngfreeforall] to [aspng-validators] by Charles M.
Carroll <Click here to reveal e-mail address> --
[Original message clipped]
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Scott Cate
In writing a commercial application, I'm building everything dynamically
so the user interface is minimal.

Below is some code that I use to create textboxxes, inside my forms, and
user controls.

I'm having problems getting a validation control to work, it seems to
bind tofunctions follow the control, however doesn't seem to work
properly, the controls all get added, but I'm missing something.

Here is the code to follow.

<table created that will add this row>

EditUserTable.Rows.Add(myKBGenericFunctions.CreateEditRowTextBox("UserNa
me", "tbUserName"))
</table created that will add this row>

<CreateEditRowTextBox>
EditCell.Controls.Add(CreateTextBox(tbName, tbValue, tbLength))
</CreateEditRowTextBox>

Public Function CreateTextBox(ByVal name As String, ByVal text As
String, Optional ByVal size As Integer = 40) As TextBox
Dim TextBoxCtl As New TextBox()
TextBoxCtl.Attributes.Add("Size", size)
TextBoxCtl.ID = name
TextBoxCtl.Text = text
Return TextBoxCtl
End Function

<Commnet> This all works fine </comment>

Now the validator

Dim revUserName As New RegularExpressionValidator()
With revUserName
.ControlToValidate = "tbUserName"
.ValidationExpression = "(admin)"
.ErrorMessage = "UserName [Admin] is not allowed"
.Display = ValidatorDisplay.Dynamic
End With

And this gets added to the same placehodler control that the table got
added to.

I'm trying to check if someone is typeing in a new user names "Admin"
and prevent that from happening.

Tia
Scott
Reply to this message...
 
 
System.Web.UI.MobileControls.RegularExpressionValidator
System.Web.UI.MobileControls.TextBox
System.Web.UI.MobileControls.ValidationSummary
System.Web.UI.WebControls.RegularExpressionValidator
System.Web.UI.WebControls.TextBox
System.Web.UI.WebControls.ValidationSummary
System.Web.UI.WebControls.ValidatorDisplay
System.Windows.Forms.TextBox




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