With the following simple mark-up, I get very strange behaviour in FF and IE8. If I give the textbox focus, and tab out, nothing happens. If I give a user name value, and erase it immediately, nothing happens. However, only when I supply a user name, tab away, the erase it and tab away again, do I finally get a red star "required" mark. The summary doesn't show at all.
This is the markup I was trying with. Looks like my issue was with EnableClientScript and ValidationGroup:
<asp:Label ID="userNameLabel" runat="server"
AssociatedControlID="userNameText">
User Name:
</asp:Label>
<asp:TextBox ID="userNameText" runat="server"
Width="200px">
</asp:TextBox>
<asp:RequiredFieldValidator ID="userNameRequired" runat="server"
ControlToValidate="userNameText"
Display="Dynamic"
EnableClientScript="true"
ValidationGroup="userValidation"
ErrorMessage="User Name is always required.">
*
</asp:RequiredFieldValidator>
Are you sure EnableClientScript="true" is even needed? I think it defaults to that.
Related
I'm writing an application with multiple validators (date, required, regexp for format) on the same page. They validate correctly, but they turn up in the same place. That is, they don't turn up next to the validated field, they are appended to another validation error message next to a completely other field.
Here goes example code snippets:
Number:
<asp:RegularExpressionValidator class="IMSIValidators" runat="server" ErrorMessage="Enter digits only, no other characters" ControlToValidate="IMSIRangeTextBox" Display="Dynamic" ValidationGroup="AllValidators" ValidationExpression="[0-9]+"></asp:RegularExpressionValidator>
<p class="IMSIEditLabels">Operator: <asp:TextBox ID="OperatorTextBox" runat="server"></asp:TextBox></p>
<asp:RequiredFieldValidator runat="server" class="IMSIValidators" Text="Enter the customer" ControlToValidate="OperatorTextBox" Display="Dynamic" ValidationGroup="AllValidators"></asp:RequiredFieldValidator>
<p class="IMSIEditLabels">Requested by:<asp:TextBox ID="RequestedTextBox" class="IMSIEditInputItems" runat="server" ValidationGroup="AllValidators"></asp:TextBox></p>
<asp:RequiredFieldValidator runat="server" Text="Enter a full name" ControlToValidate="RequestedTextBox" Display="Dynamic"></asp:RequiredFieldValidator>
I've tried all ways that I can think of, such as setting Display="Dynamic" and ValidationGroup="AllValidators". No combination works for me.
I've tried to set their position in a CSS class, but then they came up on top of each other (which is logical).
Any input is greatly appreciated. I'm getting SO frustrated :)
//Eva-Lotta
I'm new to all this and trying to only allow numeric values to be entered into an existing TextBox in ASP.Net. I've got the code for this, but can't figure out where to put it in. If I do it like the below, it creates an additional box in the textbox (that works). How can I apply this limitation to the current textbox?
<asp:TableCell>
<asp:TextBox ID="txtS2" runat="server" Width="95%" AutoPostBack="true" OnTextChanged="WerklikChanged"></asp:TextBox>
<input type="text" onkeypress="filterDigits(event)"/>
</asp:TableCell>
Update:
I ended up using the below, which is not really what I wanted as it still only checks the field once I leave the field. I'll look into blocking the entry of letters completely at a later stage and post the answer here.
<asp:CompareValidator
ID="ProgrammaticID"
ControlToValidate="txtS2KoringA"
Type="Double"
Operator="DataTypeCheck"
ErrorMessage="Error Message"
Text=" Net nommers word toegelaat in die 'Werklik' velde"
ForeColor="Red"
BackColor="White"
SetFocusOnError="false"
Display="Dynamic"
runat="server">
</asp:CompareValidator>
I am having trouble with the <asp:RequiredFieldValidator> in this code.
<asp:Label ID="email_Label" runat="server" Text="Email"></asp:Label>
<asp:TextBox ID="email_Text" runat="server" MaxLength="40" Width="250"></asp:TextBox> *
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="email_Text" Text="Required"></asp:RequiredFieldValidator>
According to the W3schools documentation here I have used the <asp:RequiredFieldValidator> correctly, however instead of displaying the label and text box the page also displays the error message. This happens on page_load so the value has not had a chance to change from the default yet. I want the error text to display after the user clicks the Save button at the bottom of the form I am building.
What is Being Displayed:
Email[TextBox] * Required
What Should Be displayed:
Email[TextBox] *
Am I missing a parent element for the validator or something. According to the example on w3schools site no parent element should be needed. In fact the way they have their example set-up is exactly what I was expecting for this.
Use Validation Group if want to display Error message on Button click. Like this.
<asp:RequiredFieldValidator ID="rqtxtQName" ValidationGroup="save" ControlToValidate="txtQueueName" runat="server" ErrorMessage="Some required field are missing." SetFocusOnError="True"Display="Dynamic"></asp:RequiredFieldValidator>
and use validation group on Button also.
<asp:Button ID="btnSubmit" runat="server" Text="Submit" ValidationGroup="save" OnClick="btnSubmit_Click"/>
Hope it will helps.
you should use ErrorMessage instead of Text
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="email_Text" ErrorMessage="Required"></asp:RequiredFieldValidator>
If you want to validation on save button click event then set property ValidationGroup="Group1"
for RequiredFieldValidator and also for save button. So it will check validation when you click save button.
And For display message you can use ErrorMessage property.
Thanks,
Hitesh
Set the RequiredFieldValidator this way. Remove the property: 'TextRequired' & put a * inbetween the opening and closing tag.
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server"
ControlToValidate="email_Text">*</asp:RequiredFieldValidator>
Also, Do not set the ErrorMessage property as this will again not fit your requirements.
For some reason, I can't get the validator to raise a flag when I do things wrong.
<asp:DropDownList ID="ddlTypeList" runat="server" DataSourceID="ods_TypeOptions" DataTextField="name" DataValueField="id" SelectedValue='<%# Bind("Type") %>' AppendDataBoundItems="true">
<asp:ListItem Text="-" Value="-1" Selected="True"></asp:ListItem>
</asp:DropDownList>
The drop down list has nice values, incl the initial dummy.
Neither
<asp:RequiredFieldValidator ID="rfw" runat="server" ControlToValidate="ddlTypeList"
InitialValue="-1" ToolTip="Required">*</asp:RequiredFieldValidator>
Nor
<asp:CompareValidator ID="cv" runat="server" ControlToValidate="ddlTypeList" ValueToCompare="-1" Operator="NotEqual" ToolTip="Required">*</asp:CompareValidator>
Raises any flags to say "hey - u messed up, go fix it". For all the google, searching, reviews, swinging big hammers, I have yet to spot what I am doing wrong.
I just want one solution to fix them all.
Oh yes, I also had a ValidationGroup="myGroup" between the DDL, RFV/CV and the button. No luck.
Your code is correct. You must have some element of code or markup that is obstructing the functionality of the validator. Is it possibly that the "-" item has its value changed from "-1" to something else?
Verify that your button that submits the form has CausesValidation=True.Also, make sure that the parent of the validators is not set to Visible=False or the children will not render on the page.
Verify that the RequiredFieldValidator and CompareValidator are rendering in the markup by searching for "_cv" or possibly "cv" in the outputted markup. If it is not there, then one of the parent elements is not being rendered or the validators are being deleted.
I have an ASP.NET page developed in VS 2008. there is a text box and login button.Required fireld validator and Validtion Group controls are associate for validation.I wrote code for the Button click evenet handler too.But the Button click is not getting fired.There is no post back happening. Can any one tell me why ?
HTM lmarkup
<asp:TextBox ID="txtLoginPass" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" ControlToValidate="txtPassword" ValidationGroup="Login" ErrorMessage="Please enter password." runat="server" />
<asp:Button ID="btnLogin" runat="server" Text="Login"
onclick="btnLogin_Click" ValidationGroup="Login" />
Validators generate client side JavaScript which can prevent a postback if the required field is empty.
Is that exact code snippet? It didn't work at all - no such control as txtPassword.
Altough, this worked as expected:
<asp:TextBox ID="txtPassword" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" ControlToValidate="txtPassword" ValidationGroup="Login" ErrorMessage="Please enter password." runat="server" />
<asp:Button ID="btnLogin" runat="server" Text="Login"
onclick="btnLogin_Click" ValidationGroup="Login" />
I'm sure that you've got that correct in your code, so the problem must be somewhere else - could please post more code surrounding this snippet?
I expect that you have AutoPostBack="True" on one of your components. If so then remove that and your onclick should work on the button.
I had this same exact problem. The RequiredFieldValidator was working as expected when the textbox was empty, but the button click wasn't causing a postback when there was text. My problem? I was using the same validationgroup name in a separate user control. So make sure all of your validationgroup names are unique.