requiredfieldvalidator

RequiredFieldValidator doesn't work when submitting form after Posting back by TextChanged event to the Textbox

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-11 01:07:53
问题 In my .aspx form I have a text box with Autopostback=True . I also set a RequiredFieldValidator next to it. But when Posting back by TextChanged event of my text box, my RequiredFieldValidator appears but still I can submit my form with nothing in the text box! What is wrong, and how can I fix this? 回答1: You have to set the textbox's CausesValidation property to true (it's set to false by default for textboxes). 回答2: Give both the text box and the submit button the same validation group. 回答3:

RequiredFieldValidator and preventing CausesValidation

由 若如初见. 提交于 2019-12-10 19:19:32
问题 I've got a RequiredFieldValidator on a contact form. It works as intended when people click 'Submit', but if they click 'Cancel' or any of the multiple menus on my form, the RequiredFieldValidator cancels the action. I have already searched and found that I need to set the other controls on my form using CausesValidation = False (using this post), but do I have to do that for every control on my page? What makes it worse is that the menus on my form are contained in a Master.Page, and they

RequiredFieldValidator not working for Dropdownlist

由 心已入冬 提交于 2019-12-10 18:12:23
问题 I have a Dropdownlist in my web page as follows. <asp:DropDownList runat="server" ID="cboNoOfSubjects" AutoPostBack="true" CssClass="textEntry" width="80%" onclick="javascript:shouldsubmit=false;" ValidationGroup="valCourseFees"> <asp:ListItem Value="0">-Select-</asp:ListItem> <asp:ListItem Value="1">1</asp:ListItem> <asp:ListItem Value="2">2</asp:ListItem> <asp:ListItem Value="3">3</asp:ListItem> <asp:ListItem Value="4">4</asp:ListItem> <asp:ListItem Value="5">5</asp:ListItem> </asp

Required Field Validator with Safari 5.1

由 落爺英雄遲暮 提交于 2019-12-10 15:34:47
问题 I'm using a Required Field Validator (code below) with a Radio Button List within a Wizard to ensure the user selects a value before proceeding to the next step of the wizard. This is working fine with all browsers except for Safari. Even when the user has selected a value from the Radio Button List the Validation Error Message is being shown and not allowing the user to proceed. I cannot figure out why this might be and why it might only be for Safari. Any suggestions <asp:WizardStep ID=

How to set form input required attribute in laravel 4

由 自古美人都是妖i 提交于 2019-12-10 01:30:15
问题 I'm using the laravel framework for a project, and I'm implementing a basic form page, where I require certain values to be required , something that can be done very easily in HTML5. <input type="text" name="abc" required> In laravel, without the required attribute, the same would be : {{ Form::text('abc') }} How do I incorporate a required attribute in the above statement? 回答1: Since simply writing ['required'] did not work, I searched online a bit more and found the answer, so I thought I

Required field validator not working

由 血红的双手。 提交于 2019-12-06 01:48:10
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

Enable/disable RequiredValidator on client-side / CustomValidator not firing

由 大憨熊 提交于 2019-12-05 05:27:00
I've got a drop-down where the user selects a Country. It is a required "field". Next to it, there is a textfield named State. If the user selects US, then the field State is required. If the user selects e.g. Sweden, the State is not required, since Sweden has no states. Example code: <asp:DropDownList runat="server" ID="Country"></asp:DropDownList> <asp:RequiredFieldValidator ControlToValidate="Country" runat="server" Display="Static" ErrorMessage="Required field" /> <asp:TextBox runat="server" ID="State"></asp:TextBox> <asp:CustomValidator ClientValidationFunction=

Define markup for [Required] fields in View in ASP.NET MVC 2.0

由 戏子无情 提交于 2019-12-05 02:42:15
问题 We have a model with properties decorated with [Required] which works great for validation. However, what we'd like to do is mark those required fields in the view with an asterisk (or some other style) to denote they are required before the user enters any data for validation. I don't seem to be able to find anything built into the MVC framework to allow me to do this and therefore wondered if anyone else had already solved this and how? Ultimately what we're trying to prevent is the need to

How to set form input required attribute in laravel 4

由 两盒软妹~` 提交于 2019-12-04 23:08:24
I'm using the laravel framework for a project, and I'm implementing a basic form page, where I require certain values to be required , something that can be done very easily in HTML5. <input type="text" name="abc" required> In laravel, without the required attribute, the same would be : {{ Form::text('abc') }} How do I incorporate a required attribute in the above statement? Since simply writing ['required'] did not work, I searched online a bit more and found the answer, so I thought I'd share it here. The third parameter is an array of optional attributes, which, in convention, must be
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