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.
Related
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.
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!
I have a requirement that one of multiple fields is required. Using custom validator the even fires, false is returned, but no error message is display and the form validates.
What am I missing? I have tried with and without ValidationSummary.
Thanks!
<asp:CustomValidator ID="CustomValidator1" OnServerValidate="validatePhone" EnableClientScript="false" runat="server" ErrorMessage="Home or Cell Phone is Required" ></asp:CustomValidator>
<asp:ValidationSummary ID="ValidationSummary1" DisplayMode="BulletList" runat="server" ForeColor="Red" Font-Size="X-Small" Font-Bold="true" />
protected void validatePhone(object sender, ServerValidateEventArgs e)
{
e.IsValid = string.IsNullOrEmpty(txtCellPhone.Text) && string.IsNullOrEmpty(txtHomePhone.Text) ? false : true;
}
You have to set the ControlToValidate to some TextBox.
<asp:CustomValidator ID="CustomValidator1" OnServerValidate="validatePhone" EnabEnableClientScript="false" runat="server" ErrorMessage="Home or Cell Phone is Required" ControlToValidate="txtHomePhone"/>
Check out this article. Basically you need to wire up the client side validation.
Add the following just before the closing form tag changing the control names as needed:
<%-- This configures the validator to automatically--%>
<%-- update when either of these controls is changed --%>
<script type="text/javascript">
<!--
ValidatorHookupControlID("<%= MyControl1.ClientID %>",
document.getElementById["<%= CustomValidator1.ClientID %>"]);
ValidatorHookupControlID("<%= MyControl2.ClientID %>",
document.getElementById["<%= CustomValidator1.ClientID %>"]);
//-->
</script>
Alternatively use this control
Issue was completely my fault. On my submit button the final thing I do is a Response.Redirect. The message was coming up, but then the Thank you page was being presented. Now only doing the Response.Redirect if the customvalidator returns true.
I have used a required field validator followed by a regular expression validator but the required field validator is not working.....
<asp:TextBox ID="txtSummary" runat="server" TextMode="MultiLine" Width="700px"
CssClass="txtStyle" Font-Names="Arial" MaxLength="1000"
ValidationGroup="Valtxt" TabIndex="2" Rows="4">
</asp:TextBox>
<asp:RegularExpressionValidator ID="regValSummary" runat="server"
ControlToValidate="txtSummary" Display="Dynamic"
ValidationExpression="[^<>&#!]*" ValidationGroup="Valtxt">
Invalid characters(<>&#!) are not allowed
</asp:RegularExpressionValidator>
<asp:RequiredFieldValidator ID="reqvalSummary" runat="server"
ControlToValidate="txtSummary" ErrorMessage="Summary is required"
ValidationGroup="Valtxt" Display="Dynamic">
</asp:RequiredFieldValidator>
can anyone sees the problem???
The RequiredFieldValidator is triggered by the client side onchange event. It sounds like you're expecting it to be triggered by the onblur event, such that tabbing away from the textbox would fire the validation.
Before jumping to that, I suspect this is what you are seeing and to validate that it's actually working you need to trigger onchange. To do so, enter some text in the textbox, tab away, tab back to it, clear the textbox, then tab away once more. You should now see the RequiredFieldValidator's error message since it's contents have changed.
Back to the onblur issue. To accomplish that behavior you could add the onblur attribute in your code-behind and have it call the ValidatorValidate(...) JavaScript method as follows:
void Page_Load(object sender, EventArgs e)
{
txtSummary.Attributes.Add("onblur", "ValidatorValidate(" + reqvalSummary.ClientID + ")");
}
Alternately, you could accomplish the same thing in markup. First, add this script block:
<script type="text/javascript">
function rfvBlur() {
var rfv = document.getElementById("<%= reqvalSummary.ClientID %>");
ValidatorValidate(rfv);
}
</script>
Second, update the <asp:TextBox.../> markup by adding onblur="rfvBlur()" so that it now looks like this:
<asp:TextBox ID="txtSummary" runat="server" TextMode="MultiLine" Width="700px" CausesValidation="true"
CssClass="txtStyle" Font-Names="Arial" MaxLength="1000" ValidationGroup="Valtxt"
TabIndex="2" Rows="4" onblur="rfvBlur()" />
Yet another option is to validate the entire ValidationGroup by adding the following attribute to your <asp:TextBox.../> markup (no additional script block needed):
onblur="Page_ClientValidate('Valtxt')"
Adding this line to <appSettings> section of web.config worked for me (I had a problem when all validators stopped working when project was upgraded to .NET 4.5):
<add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
Source:
http://forums.asp.net/t/1876231.aspx?ASP+Net+4+5+Validation+Controls+not+working+with+AJAX+ToolkitScriptManager1
Why don't you change the regular expression of the "RegEx" validator to check if the textbox is empty instead of use another validator?
Anyway probabily you have not specify ValidationGroup="Valtxt" for the button or the control that raise the postback. Just add ValidationGroup="Valtxt" to the button or the server control that raise the post to the page
I put the following at the top of my btn_Click event handler (to prevent further code execution) and upon 'return', the rfv messages show...
Page.Validate("your validation group");
if (!Page.IsValid)
{
return;
}
<asp:TextBox ID="txtSummary" runat="server" TextMode="MultiLine" Width="700px"
CssClass="txtStyle" Font-Names="Arial" MaxLength="1000"
TabIndex="2" Rows="4">
</asp:TextBox>
<asp:RegularExpressionValidator ID="regValSummary" runat="server"
ControlToValidate="txtSummary" ErrorMessage="Invalid characters(<>&#!) are not allowed" Text="*"
ValidationExpression="[^<>&#!]*" ValidationGroup="Valtxt">
</asp:RegularExpressionValidator>
<asp:RequiredFieldValidator ID="reqvalSummary" runat="server"
ControlToValidate="txtSummary" ErrorMessage="Summary is required" Text="*"
ValidationGroup="Valtxt">
</asp:RequiredFieldValidator>