|M| 第四贴:上星期五幕白兄写的一个正则和不为空控件合并的,在cs中可以,我写到控件中就有个问题 大家来看看

Question

http://community.csdn.net/Expert/topic/5432/5432250.xml?temp=.512768
http://community.csdn.net/Expert/topic/5432/5432306.xml?temp=.6382715
http://community.csdn.net/Expert/topic/5436/5436352.xml?temp=5.195254E-02RequiredFieldValidator req = new RequiredFieldValidator();
            req.ControlToValidate = this.ControlToValidate;
            req.ErrorMessage = this.NotNullMessage;
            req.Display = this.Display;
            Literal l = new Literal();
            l.Text = this.ErrorMessage;
            this.Controls.Add(l);
            this.Controls.Add(req);<cc1:webRev ID="WebRev1" runat="server" Display="Dynamic"  ControlToValidate="TextBox1" ErrorMessage="数字" NotNullMessage="不可空" ValidationExpression="\d*"></cc1:webRev>因为加多了一个Display="Dynamic" 就不显示了
但这个对我来说是很重要的因为加多了 Display="Dynamic" 的时候
当TextBox1为空的时候并没有验证WebRev1
这时WebRev1的Display=none
虽然这个时候验证了里面的RequiredFieldValidator控件,他的Display=""
但是因为他包含在WebRev1中当WebRev1不显示的时候他自然就显示不出来了

Answer 1

using System;using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace AA
{
    /// <summary>
    /// MyRegValidtor 的摘要说明
    /// </summary>
    public class MyRegValidtor : System.Web.UI.WebControls.WebControl
    {
        public MyRegValidtor()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
          
           
        }        protected override void OnInit(EventArgs e)
        {            
        }        protected override void OnDataBinding(EventArgs e)
        {         
            base.OnDataBinding(e);
        }        protected override void OnPreRender(EventArgs e)
        {            RequiredFieldValidator req = new RequiredFieldValidator();
            req.ControlToValidate = this.ControlToValidate;
            req.ErrorMessage = this.NotNullMessage;
            req.Display = this.Display;
            this.Controls.Add(req);            RegularExpressionValidator reg = new RegularExpressionValidator();
            reg.ControlToValidate = this.ControlToValidate;
            reg.ErrorMessage = this.ErrorMessage;
            reg.ValidationExpression = this.ValidationExpression;
            reg.Display = this.Display;
            this.Controls.Add(reg);           
           
        }        public string ErrorMessage
        {
            get
            {
                return ViewState["ErrorMessage"] != null ? (string)ViewState["ErrorMessage"] : "";
            }            set
            {
                ViewState["ErrorMessage"] = value;
            }
        }        public string ValidationExpression
        {
            get
            {
                return ViewState["ValidationExpression"] != null ? (string)ViewState["ValidationExpression"] : "";
            }            set
            {
                ViewState["ValidationExpression"] = value;
            }
        }
        public string ControlToValidate
        {
            get
            {
                return ViewState["ControlToValidate"] != null ? (string)ViewState["ControlToValidate"] : "";
            }            set
            {
                ViewState["ControlToValidate"] = value;
            }
        }        public ValidatorDisplay Display
        {
            get
            {
                return ViewState["Display"] != null ? (ValidatorDisplay)ViewState["Display"] : ValidatorDisplay.None;
            }            set
            {
                ViewState["Display"] = value;
            }
        }        public string NotNullMessage
        {
            get
            {
                return ViewState["NotNullMessage"] != null ? (string)ViewState["NotNullMessage"] : "";
            }            set
            {
                ViewState["NotNullMessage"] = value;
            }
        }    }
}

Answer 2

但是因为他包含在WebRev1中当WebRev1不显示的时候他自然就显示不出来了这是你的逻辑安排问题吧？想显示就把父置成可显啊