requiredfieldvalidator

I've got an update panel with a textbox and a requiredfieldvalidator and a couple of buttons. On pageload, you see a label and a button. On button press, the textbox and validator display (along with the other button). The basic change in display works fine. However, my validator (which is set to be dynamic) displays its error message, even if the textbox is populated. Provided that the textbox is populated, pressing the submit button does actually work, but there's obviously something not quite right with my code. <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <% If

I am using RangeValidator to validate date enter in textbox and its working fine with default date format but now i want the date format in "dd/MM/yyy" but its generating excption with this date format. please provide me solution my code: in aspx page: <asp:TextBox ID="txtrequiredby" runat="server" ></asp:TextBox > <cc1:CalendarExtender ID="txtrequiredby_CalendarExtender" Format="dd/MM/yyyy" runat="server" Enabled="True" TargetControlID="txtrequiredby" > </cc1:CalendarExtender > <asp:RangeValidator ID="rvreqby" runat="server" ErrorMessage="Required By Date Greater Than or Equal to current date

I have a simple web form with a textbox and a RequiredFieldValidator wired up to it. When the RequiredFieldValidator error is triggered the user has to click the submit twice to post the form. The first click clears the error, the second actually fires off the button click event. Is this expected behavior? <asp:RequiredFieldValidator ID="reqFieldCloseComment" ControlToValidate="tbCloseComment" ValidationGroup="ChangeStatus" ErrorMessage="Please enter a reason" Display="Dynamic" runat="server"></asp:RequiredFieldValidator> <asp:TextBox ID="tbCloseComment" runat="server" CausesValidation="true"

This question already has an answer here: Required attribute HTML5 7 answers I use required for a 1st check before submitting a form. <form action="myform.php"> Foo: <input type="text" name="someField" required="required"> <input type="submit" value="submit"> <input type="submit" value="ignore"> </form> Problem is, that I have an "ignore" button, which submits the form as well and the backend logic then sets a correct state in a DB. In this case (ignore) the validation is not desired (because there is no need to fill in field "Foo"). What's the best way to handle the 2 scenarios? I am aware

I have Dropdownlist whose value field and text field are bind at runtime. it has --select-- as first item with a value of 0 and the rest of the values are bind at runtime. I have given validaton group for both the control and the validator as "g1" and Intialvalue=0 But still the page is posting back even if I select --select-- option. <asp:DropDownList AutoPostBack="true" CssClass="dropdown" ValidationGroup="g1" ID="ddlReportType" runat="server" OnSelectedIndexChanged="ddlReportType_SelectedIndexChanged"></asp:DropDownList> <asp:RequiredFieldValidator ControlToValidate="ddlReportType" ID=

now, the error message will display if I move out of current textbox. I don't want to display it until I click submit button. This isn't possible when ClientScript is enabled for your validators. And the ClientScript is by default enabled for your validators. You need to disable this by settings EnableClientScript to False in your source. Now in the event handler of your submit button call Page.Validate() and Page.IsValid to see if every validators did pass the test. Example: <asp:RequiredFieldValidator ID="rfvFirstName" runat="server" ControlToValidate="txtFirstName" EnableClientScript="false