--[if !supportEmptyParas]--> Field: <asp:textbox id="textbox4" runat="server"/> <asp:CompareValidator id="CompareValidator1" runat="server" ControlToValidate="textbox1" ValueToCompare="50" Type="Integer" Operator="GreaterThan" ErrorMessage="* You must enter the a number greater than 5...
通常的,编写自定义Validator有如下两个步骤: 从Sys.UI.Validator基类中继承。 实现validate()方法来验证输入,并返回一个布尔值代表是否验证成功。 下面是IPAddressValidator的实现,并将其保存为IPAddressValidator.js。 Sys.UI.IPAddressValidator=function() { Sys.UI.IPAddressValidator.initializeBase(this); this.va...
使用RegularExpressionValidator控件配合正则表达式,可以在客户端和服务器端对输入进行验证。例如,要限制输入为整数:<asp:TextBox ID="txtNumeric" runat="server"></asp:TextBox> <asp:RegularExpressionValidator ID="regexNumeric" runat="server" ControlToValidate="txtNumeric" ValidationExpression="^\d+$" ErrorM...
自定义验证控件: <asp:CustomValidator ID="CustomValidator2"runat="server"ControlToValidate="tbMobile"ClientValidationFunction="checkCellPhone"></asp:CustomValidator> 正则表达式验证控件(当然这种方法需要加入非空验证) <asp:RegularExpressionValidator ID="revPhone"runat="server"ControlToValidate="tbPhone"ValidationE...
string input = Request.Form["inputText"]; if (!Regex.IsMatch(input, @"^\d+$")) { // 非数字输入,给出相应提示 } 复制代码使用ASP.NET 控件的特性进行验证:在 ASP.NET 中,可以使用一些控件的特性来实现只允许输入数字。例如,可以使用 RegularExpressionValidator 控件来限制只能输入数字。
默认情况下这个属性的值是String.Empty ,如果控件的值与它的默认值一致就不能通过验证,即如果关联的控件没有填写的话就不能通过验证,在验证DropDownList 控件的时候我们也可以使用RequiredFieldValidator 控件,不过需要设置RequiredFieldValidator 控件的InitialValue 属性。 下面我们通过一个例子来演示RequiredFieldValidator ...
However, surprisingly, if I delete OnClientClick="return Client_ValidatePage()" from btnPay, all client side functions of the validator controls are working fine. Seems like the client side functions of the validator controls are clashing with OnClientClick="return Client_ValidatePage()" of btnPay...
<asp:TextBox id="txtName" /> <asp:RegularExpressionValidator id="nameRegex" ControlToValidate="txtName" ValidationExpression="^[a-zA-Z'.\s]{1,40}$" ErrorMessage="Invalid name" /> Does the code validate query string and cookie input? The application should use code similar to the ...
Date parameter for Sql function Date Split in C# for the given Start Date and End Date date time validator (date must be less than today's date using validation control) Date without time ASP.NET vs VB.NET Date(MM/dd/yyyy) validation using Regular Expression Datetime add 1 month to curre...
For example, the following function demonstrates how to use a regular expression to validate a ZIP code:private void ValidateZipButton_Click(object sender, System.EventArgs e) { String ZipRegex = @"^\d{5}$"; if(Regex.IsMatch(ZipTextBox.Text, ZipRegex)) { ResultLabel.Text = "ZIP is ...