In web application, i am using regular expression for date like "dd-mm-yyyy" format for this i get the validation but it is not working when we enter date like "12-02-2012" remaining condition it is working fine, can you help me this is my validation expression.
<asp:RegularExpressionValidator ID ="myg" runat ="server" ControlToValidate ="txt" ErrorMessage ="Check"
ValidationExpression ="^(((0[1-9]|[12]\d|3[01])-(0[13578]|1[02])-((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)-(0[13456789]|1[012])-((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$" >
</asp:RegularExpressionValidator>
I solve the problem,
ValidationExpression ="^(((0[1-9]|[12]\d|3[01])-(0[13578]|1[02])-((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)-(0[123456789]|1[012])-((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$"
asp:RegularExpression is not the way to do this.
For validating date using an ASP.NET Validator its ideal to use asp:CompareValidator
Here is a small mock-up
<asp:TextBox ID="txtDatecompleted" runat="server"/>
<asp:CompareValidator ID="dateValidator" runat="server"
ControlToValidate="txtDatecompleted"
ErrorMessage="Please enter a valid date."
Operator="DataTypeCheck"
Type="Date"
ValidationGroup="TestVGroup">
</asp:CompareValidator>
<br />
<asp:Button ID="ClickButton" Text="Click Me" runat="server"
ValidationGroup="TestVGroup"
OnClick="ClickButton_Click" />
This will automatically check for different date formats and leap years
I slove the problem,
ValidationExpression ="^(((0[1-9]|[12]\d|3[01])-(0[13578]|1[02])-((19|[2-9]\d)\d{2}))|
((0[1-9]|[12]\d|30)-(0[123456789]|1[012])-((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])
\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|
((16|[2468][048]|[3579][26])00))))$"
Related
I'm having a situation where i'm having a Calendar control in my page and when user selects a date it should check whether date selected is greater than today's date.
I tried a lot and Googled it as well, but in every place they are taking value using a textbox and i want the same to be done with a Calendar control.
Contrary to popular belief, you actually don't need any C# code to get this done! All you need is some extenders and validators on your date textbox. So let's say I had two textboxes -- one named txtStartDt and one named txtEndDate; this is how the extensions for them would be placed:
// Start Date
<asp:TextBox ID="txtStartDt" runat="server" CssClass="textboxint" /> // the main control itself
<ajax:CalendarExtender ID="calStartDt" runat="server" PopupPosition="BottomRight"
TargetControlID="txtStartDt" /> // allows the control to behave like a calendar picker
<asp:CompareValidator ID="CVStartDt" runat="server" Type="Date" Operator="LessThan"
ErrorMessage="Start Date must come before the End Date" ValidationGroup="ReportDate"
ControlToValidate="txtStartDt" ControlToCompare="txtEndDt" Display="None" /> // THIS is the main solution to your problem
<ajax:ValidatorCalloutExtender ID="VCEStartDt" runat="server" TargetControlID="CVStartDt"
HighlightCssClass="valCalloutint" /> // Checks that the CV is working correctly
<asp:RequiredFieldValidator ID="RFVStartDt" runat="server" ControlToValidate="txtStartDt"
Display="None" ErrorMessage="Start Date is required" ValidationGroup="ReportDate" /> // ensures a value was added to the textbox
<ajax:ValidatorCalloutExtender ID="VCEreqStartDt" runat="server" TargetControlID="RFVStartDt"
HighlightCssClass="valCalloutint" PopupPosition="BottomRight" /> // Checks that the RFV is working correctly
// End Date
<asp:TextBox ID="txtEndDt" runat="server" CssClass="textboxint" />
<ajax:CalendarExtender ID="calEndDt" runat="server" PopupPosition="BottomRight" TargetControlID="txtEndDt" />
<asp:CompareValidator ID="CVEndDt" runat="server" Type="Date" Operator="GreaterThan"
ErrorMessage="End Date must come after the Start Date" ValidationGroup="ReportDate"
ControlToValidate="txtEndDt" ControlToCompare="txtStartDt" Display="None" />
<ajax:ValidatorCalloutExtender ID="VCEEndDt" runat="server" TargetControlID="CVEndDt"
HighlightCssClass="valCalloutint" />
<asp:RequiredFieldValidator ID="RFVEndDt" runat="server" ControlToValidate="txtEndDt"
Display="None" ErrorMessage="End Date is required" ValidationGroup="ReportDate" />
<ajax:ValidatorCalloutExtender ID="VCEreqEndDt" runat="server" TargetControlID="RFVEndDt"
HighlightCssClass="valCalloutint" PopupPosition="BottomRight" />
Note that the extra ValidatorCalloutExtender tools are not redundant, but actually allows the program to prevent the user from entering an empty value for one of the textboxes.
Hope this helps!!
The calendar control should have a property called SelectedDate. You can compare this property with any other DateTime property. The code snippet below will check if the SelectedDate is greater than today.
if (Calendar.SelectedDate > DateTime.Now())
{
}
Html (Full Code)
<asp:TextBox ID="txtSasiNo" runat="server" Width="250px" MaxLength="17"></asp:TextBox>
<asp:RegularExpressionValidator CssClass="zorunlu" ValidationGroup="kaskoTeklifSayfasi" Display="Dynamic" ID="rangevalidator1" runat="server" SetFocusOnError="true" ControlToValidate="txtSasiNo" ErrorMessage="Enter number characters only (8 or 17)" ValidationExpression="^\d{8}$|^\d{17}$""></asp:RegularExpressionValidator>
<asp:RequiredFieldValidator ID="rfvSasiNo" SetFocusOnError="true" ValidationGroup="kaskoTeklifSayfasi" runat="server" Display="Dynamic" ControlToValidate="txtSasiNo" CssClass="zorunlu">Please enter Number.</asp:RequiredFieldValidator>
Question:
I am trying to use RangeValidator.
If txtnumber is null or empty and if txtnumber is not 8 characters or not 17 characters.
Only 2 options first option is 8 character second option is 17 character.
txtnumber text character only can be like below
12345678 // This is 8 characters
12345678901234567 // This is 17 characters
What to add to RangeValidator in order to achieve this ?
Thanks.
As described by Ondrej you can use RegularExpressionValidator. To be more specific with the aspx. See the code below:-
UPDATED CODE:
Here you go:-
<asp:TextBox ID="txtnumber" runat="server" Width="250px"></asp:TextBox>
<asp:RegularExpressionValidator Display="Dynamic" ID="regtxt" runat="server" SetFocusOnError="true" ControlToValidate="txtnumber" ErrorMessage="Enter number characters only (8 or 17)"
ValidationExpression="^\d{8}$|^\d{17}$"></asp:RegularExpressionValidator>
Hope it helps
Don't use range validator - use regex validator instead:
<asp:RegularExpressionValidator ValidationExpression="^([0-9]{8})|([0-9]{17})$" ... />
The validators usually ignore empty fields. Notable exception: the RequiredFieldValidator. Add that to guard against empty fields and keep the RangeValidator to force a specific range of values.
i have a textbox that will only accpet numbers, so i have to make validator that accept only number except 0, what's the regular expression i should do, any help please, i have already try this :
<asp:RegularExpressionValidator ID="regValSummary" runat="server"
ControlToValidate="txtSummary" Display="Dynamic" ValidationExpression="[1-9]*"
ValidationGroup="grpLigneComande">
*
</asp:RegularExpressionValidator>
any suggestion please !!
You can use Compare Validator instead of RegularExpressionValidator like
<asp:CompareValidator ID="CompareValidator1" runat="server" ValueToCompare="0" ControlToValidate="TextBox1"
ErrorMessage="Must enter positive integers" Operator="GreaterThan" Type="Integer"></asp:CompareValidator>
Hope this will help.
i think a RegularExpressionValidator won't be able to help you. Try exploring MaskedTextBox. C# Numeric Only TextBox Control
Or if you're using Ajax Control Toolkit, try the FilteredTextBoxExtender, using a sample MobileNo textfield which will accept numbers except 0:
<asp:TextBox ID="txtMobileNo" runat="server" CssClass="textBox" Width="200px" MaxLength="15" />
<ajax:FilteredTextBoxExtender runat="server" ID="FilteredTextBoxExtender4" TargetControlID="txtMobileNo" FilterMode="ValidChars" FilterType="Numbers, Custom" ValidChars="+-" InvalidChars="0" />
Ok so I have a regular expression validator on my form but I am new to it and was wondering how I add another expression to it so I can look for something else as well. Here is my sample code:
<asp:RegularExpressionValidator
ID="RegularExpressionValidator3"
ControlToValidate="txtRelationship"
ValidationExpression="^[a-zA-Z''-,\'.'\s]{1,30}$"
EnableClientScript="true"
Display="None"
ValidationGroup="<%# ((TSAPassenger)((RepeaterItem)Container.Parent.Parent).DataItem).PaxKey %>"
runat="server"
ErrorMessage="Invalid Relationship.">
Invalid Relationship
</asp:RegularExpressionValidator>
I am trying to add in if the field name is equal to "test" or "tba" to give the same error or a different error. How would I add another expression into this?
Would the second validation look like this?
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" ControlToValidate="txtName" ValidationExpression="^.*\b(test|tba)\b.*$"
EnableClientScript="true" Display="None" ValidationGroup="<%# ((TSAPassenger)((RepeaterItem) Container.Parent.Parent).DataItem).PaxKey %>" runat="server" ErrorMessage="This can not be used as a Contact Name."></asp:RegularExpressionValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidatorName" ControlToValidate="txtName" Enabled="<%# (Container.ItemIndex == 0 || Container. = "test") %>" ValidationGroup="<%# ((TSAPassenger)((RepeaterItem) Container.Parent.Parent).DataItem).PaxKey %>" runat="server" ErrorMessage="Contact Name is required."></asp:RequiredFieldValidator>
The best solution would be IMHO to use a custom validator and code your validations in the onServerValidate event.
Of course, you can always add another regExp validator or even a compare validator to the same object you are validating.
Hope this helps
My textbox should contain 8 digits. If not i want to pop up an alert box. But the regualr expression validator does not trigger. Why?
<asp:LinkButton ID="LinkPayment" CssClass="btn mainBtn" runat="server" onclick="LinkPayment_Click" OnClientClick="_gaq.push(['_trackPageview', '/virtualgoal/smspayment']);">Betal ></asp:LinkButton>
<asp:RequiredFieldValidator ID="RequiredCustomersPhone" Display="None" ValidationGroup="ValGroupCustomersPhone" ControlToValidate="CustomersPhone" runat="server" ErrorMessage="Du må fylle inn ditt mobilnummer!"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegExValCustomersPhone" ValidationGroup="ValGroupCustomersPhone" runat="server" ControlToValidate="CustomersPhone" Display="None" ErrorMessage="Telefonnummer må bestå av 8 siffer!" ValidationExpression="[0-9]{8}"></asp:RegularExpressionValidator>
<asp:ValidationSummary ID="ValidationSummary" ShowSummary="False" ValidationGroup="ValGroupCustomersPhone" ShowMessageBox="True" runat="server" />
Add the following code:
ValidationGroup="ValGroupCustomersPhone"
to your linkbutton
Are you trying to validate an empty field? You may need a required field validatior as well. It's a shame there is no 'ValidateEmptyText' field on Regex validators.