I have a required field validator for a textbox which I want to disable on click of a link button. I coded like so.
Protected Sub lnkDeleteTimeSlots_click(sender As Object, e As EventArgs)
txtTimeslotName_RequiredFieldValidator.Enabled = False
End Sub
The design of the textbox.
<asp:TextBox ID="txtTimeslotName" runat="server"></asp:TextBox>
<font color="red">*</font>
<asp:RequiredFieldValidator ID="txtTimeslotName_RequiredFieldValidator"
runat="server"
ErrorMessage="Timeslot Name Required!"
Display="None"
ControlToValidate="txtTimeslotName"
ForeColor="Red"
ValidationGroup="Timetable">
</asp:RequiredFieldValidator>
But it still validates for the required field. What is the issue?
EDIT:
The linkbutton is inside a grid. When it is clicked, I open a popup window with the textbox and a button. The code for the button is like so.
<asp:Button ID="btnMAdd" runat="server" Text="Add Timeslot" PostBackUrl="~/TimeSlots.aspx" OnClick="btnMAdd_Click" CssClass="button" ValidationGroup="Timetable" OnClientClick="javascript:shouldsubmit=true;" />
Set Cause Vlaidation Property of Link Button to falselike this...
CausesValidation="false" so it will allow you to call your code and disable your Validator...
I have fixed this issue - removed the CausesValidation from the linkbutton.
Related
This is the issue I have going right now with validation controls and I simply can't find answer anywhere for it.
I currently have a required field validator watching a listbox. The validator's initial value property is set to "None". The first item in the listbox's value is also set to "None", thus forcing the user to change the selection. However I don't want the validation to show on the selected index change, I want it to show after a button press. So I changed the validation group of the validator and the button to "final" however the validator still shows on selected index changed without the button being pressed.
My code on the validator:
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ErrorMessage="Please Select an Incident" ControlToValidate="lstIncidents"
ValidationGroup="final" CssClass="style3" InitialValue="None" Display="Dynamic">
</asp:RequiredFieldValidator>
My Code on the Submit Button:
<asp:Button ID="btnSubmit" runat="server" Text="Submit" ValidationGroup="final"
Enabled="False" />
Anyone see what might be wrong here?
Thanks in advance!
Set the validator's EnableClientScript to false (default is true):
<asp:RequiredFieldValidator EnableClientScript="False" ID="RequiredFieldValidator2" runat="server"
ErrorMessage="Please Select an Incident" ControlToValidate="lstIncidents"
ValidationGroup="final" CssClass="style3" InitialValue="None" Display="Dynamic">
</asp:RequiredFieldValidator>
I Got a text box with a Regular Expression validator, to validate if my textbox is numeric.
here's the code :
<asp:TextBox ID="txtAmount" runat="server" CssClass="TextBoxCls"></asp:TextBox>
<asp:RegularExpressionValidator runat="server" ID="valNumbersOnly" ControlToValidate="txtAmount"
SetFocusOnError="true" Display="Dynamic" ErrorMessage="Please enter a numbers only in text box."
Font-Bold="true" ForeColor="Red" ValidationExpression="(^([0-9 ]*|\d*\d{1}?\d*)$)">
</asp:RegularExpressionValidator>
and , if the user accidentally input the wrong data , it'll show the Error Like This :
and i give the user, a clear function to clear all the textbox : with kind of this function :
Public Sub ClearTextBox(ByVal root As Control)
For Each ctrl As Control In root.Controls
ClearTextBox(ctrl)
If TypeOf ctrl Is TextBox Then
CType(ctrl, TextBox).Text = String.Empty
End If
Next ctrl
End Sub
Protected Sub btnClr_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnClr.Click
ClearTextBox(Me)
dropResponse.SelectedIndex = 0
FillData()
End Sub
but , the amount is not cleared, it still show the error. why it still happen?
If you are providing this through another button on the same form it won't ever hit the code-behind.
If you want a button on a validated form that needs to fire regardless of whether the other controls have validated, put it in a separate validation group:
<asp:Button runat="server" ID="btnClr" Text="Clear form" OnClick="btnClr_Click" ValidationGroup="unvalidatedControls" />
Alternatively, put a validation group on your controls that need validating and also the button that submits the form:
<asp:TextBox ID="txtAmount" runat="server" CssClass="TextBoxCls" ValidationGroup="validatedControls"></asp:TextBox>
<asp:RegularExpressionValidator runat="server" ID="valNumbersOnly" ControlToValidate="txtAmount"
SetFocusOnError="true" Display="Dynamic" ErrorMessage="Please enter a numbers only in text box."
Font-Bold="true" ForeColor="Red" ValidationExpression="(^([0-9 ]*|\d*\d{1}?\d*)$)"
ValidationGroup="validatedControls">
</asp:RegularExpressionValidator>
<asp:Button runat="server" ID="btnSubmit" Text="Submit Form" ValidationGroup="validatedControls" />
You could put a ValidationGroup attribute on both your clear button and the main form, as long as they're different, the clear button will work just fine.
Some documentation on Validation Groups: http://msdn.microsoft.com/en-us/library/ms227424.aspx
I suspect that the textbox is contained in a panel or another container control. Only the toplevel controls of a page are available in the controls collection of the page.
I would suggest to change the parameter of the call to ClearTextBox with the correct container control.
Hi all I need a required field validator for my textbox..This is my textbox..
<asp:TextBox ID="txtTimeSlotGroupName" runat="server" AutoPostBack="false"
ClientIDMode="Static"></asp:TextBox>
<font color="red">*</font>
<asp:RequiredFieldValidator ID="RequiredFieldValidator_txtTimeSlotGroupName"
runat="server" ControlToValidate="txtTimeSlotGroupName" Display="None"
ErrorMessage="Timeslot Group Required!" ForeColor="Red" InitialValue="0"
ValidationGroup="TimeSlot"></asp:RequiredFieldValidator>
My button:
<asp:Button ID="btnAddTimeSlots" Text="Add Timeslots" CssClass="button"
runat="server" OnClick="btnAddTimeslots_Click" ValidationGroup="TimeSlot"
OnClientClick="javascript:shouldsubmit=true;"/>
I am not getting the error message. Any solutions?
You have to define the Validation Group Of your Textbox too....to make it work
<asp:TextBox ID="txtTimeSlotGroupName" runat="server"
AutoPostBack="false" ValidationGroup="TimeSlot" ClientIDMode="Static"></asp:TextBox>
Remove InitialValue="0" from the RequiredFieldValidator tag, it is not required when you are validating the textbox.
Even I was facing the same issue. Kindly check if any javascript are present on your page. Irrespective of above make use of Page.Validate() method and if(Page.IsValid) in your code. This will automatically force your validation controls and issue will be solved
If two objects have the same id the required field validator Does not work.
You just add ValidationGroup="TimeSlot" in textbox
<asp:TextBox ID="txtTimeSlotGroupName" runat="server" AutoPostBack="false"
ValidationGroup="TimeSlot" ClientIDMode="Static"></asp:TextBox>
I had this same issue... but none of the above answers were the fix for me...
My problem was that I was missing the Page.isValid in my button press method. Below is my button code and the method called by the button.
Button:
<asp:Button ID="btnBtmSave" runat="server" Text="Save" OnClick="btnSave_Click" BtnGroup="save" TabIndex="18" />
Button method:
protected void btnSave_Click(object sender, EventArgs e)
{
if (Page.IsValid)
{
//Logic goes here
}
}
make the same Validation Group Of all your text and Add button and Validation
ValidationGroup="AAA"
and add the code to your save button:
If (Page.IsValid) Then
YOURSQL.Insert()
'or ur code here'
End If
In my case, For button, I was using both client side validation i.e onClientClick="return validate()", and ASP.NET Validation i.e Reguired field Validation (ValidationGroup). Hence the Required field validators were not firing.
I have an input button on my page that is dynamically created, every time I press it, it fires the RequiredFieldValidator for the blank field in the email address.
is there a way to ovverride it?
input code:
<input class=\"hledat\" id=\"searchbutton\" type=\"image\" src=\"search-button.gif\" value=\"{0}\" onclick=\"search('{1}');\" onkeypress=\"search('{1}');\"/>"
validator code:
<asp:TextBox runat="server" ID="txtEmail" ClientIDMode="Static" Width="98%" />
<asp:RequiredFieldValidator runat="server" ControlToValidate="txtEmail" ErrorMessage="email"
Display="dynamic" ValidationGroup="newsletter" />
<asp:RegularExpressionValidator runat="server" ControlToValidate="txtEmail" ErrorMessage="email"
ValidationExpression="\w+([-+.']\w+)*#\w+([-.]\w+)*\.\w+([-.]\w+)*" Display="dynamic"
ValidationGroup="newsletter" />
I have an input button on my page that is dynamically created, every
time I press it, it fires the RequiredFieldValidator for the blank
field in the email address. is there a way to ovverride it?
HtmlButton.CausesValidation Property
Mark UP
<button causesvalidation="false" /><button ID="StateQueryButton"
CausesValidation="False"
runat="server">
Submit
</button>
yes, i want it to do a postback
HtmlButton.OnServerClick Method
Code Behind
protected void FancyBtn_Click(object sender, EventArgs e)
{
}
Mark Up
<button causesvalidation="false" /><button ID="StateQueryButton"
CausesValidation="False"
OnServerClick=" FancyBtn_Click"
runat="server" >
Submit
</button>
Make it server side button by writing runat="Server" attribute and make a CausesValidation="true|false" on your requirements. If you do false it will not validate. Do let me know if it solves the problem
try to add runat="server" to input button as shown:
*Note* the runat="server". While asp:button probably renders similarly, if what you really want it an HTML button input, you can use that. Yes, ASP.NET will pick up the value on the server side.**
<input type="button" runat="server" id="btnTest" value="change" onclick="doPostBack('btnTest', '');"/>
I wrote a simple asp.net code with the asp.net required validator control, the problem is that I only have one submit button called GO, and a dropdownlist that looks for the selection :
clear, submit, cancel.
No matter what option is selected, the required field validation is being fired.
Is there a way to code the page so only when the selected value is Submit it validates?
<asp:TextBox runat="server" id="txtName" />
<asp:RequiredFieldValidator runat="server" id="reqName" controltovalidate="txtName" errormessage="Please enter your name!" />
<br /><br />
<asp:DropDownList ID="dpAction" runat="server">
<asp:ListItem>Submit</asp:ListItem>
<asp:ListItem Value="Reset">Reset</asp:ListItem>
<asp:ListItem>Cancel</asp:ListItem>
</asp:DropDownList>
<asp:Button ID="btnAction" runat="server" onclick="btnAction_Click" Text="Go"
Width="40px" />
You will probably have to use a custom validator, and you would need to write the client side code for it also if you want client side validation.
I'm assuming you have a text box or something else that is required when "dpAction" is set to "Submit"?
So for example you would do something like this in your markup
<asp:CustomValidator id="CustomValidator1" runat="server"
OnServerValidate="TextValidate"
ControlToValidate="TextBox1"
ErrorMessage="Text must be specified if Submit is selected">
and in your code-behind
protected void TextValidate(object source, ServerValidateEventArgs args)
{
args.IsValid = dpAction.SelectedValue == "Submit" && !String.IsNullOrEmpty(textbox1.Text);
}
using "required" attribute.
its new in html 5
you should set ValidationGroup for each Validator!
for all controls that you want to be validated and the button to fire the validation:
and the button must have same validaton group with your validator!