重写的支持多验证TextBox控件
开发的时候，TextBox是个不得不用，又经常用的东西，经常会遇上是否允许空，数据类型的判断等等，用脚本吧，麻烦；用验证控件吧，也麻烦。自己写了一个，使用的时候选择下属性就OK了，还支持自定义正则表达式验证。以此作为在此的开门之笔吧：）
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Text.RegularExpressions;
namespace rungoo.WebCtrlLib
{
/// <summary>
/// 重写的TextBox控件
/// Author: nowind
/// Date: 2006-5-9
/// Email: hgh113@sina.com
/// QQ: 87505959
/// <summary>
///
#region 枚举数据
/// <summary>
/// 验证数据类型
/// </summary>
public enum DataType
{
Never, //不验证
String, //字符串
Int, //整数
IntPostive, //大于0的整数
IntZeroPostive, //大于等于0的整数
Float, //数字
FloatPostive, //大于0的数字
FloatZeroPostive, //大于等于0的数字
Url,
Mail,
//ChineseChars, //汉字
EnglishChars, //英文
EngNum, //英文和数字
EngNumUnerline, //英文、数字和下划线
PhoneNumber, //电话号码
MobileNumber, //手机号码
PostalCode, //邮政编码
Custom
}
#endregion
/// Attribute DefaultProperty指定组件的默认属性，ToolboxData指定当从IDE工具中的工具箱中拖动自定义控件时为它生成的默认标记
[DefaultProperty("AllowEmpty"), ToolboxData("<{0}:WebTextBox runat=server></{0}:WebTextBox>")]
//类MyControl派生自WebControl
public class WebTextBox : System.Web.UI.WebControls.TextBox
{
#region 子控件
//private System.Web.UI.WebControls.TextBox txtDataInput = new TextBox();
private System.Web.UI.WebControls.RequiredFieldValidator rfvDataInput = new RequiredFieldValidator();
private System.Web.UI.WebControls.RegularExpressionValidator revDataInput = new RegularExpressionValidator();
private Panel pnlFrame = new Panel(); //承载其它控件的容器Panel控件
#endregion
private string error = "";
#region 控件自定义属性
[Bindable(true)]
[Category("自定义信息区")]
[Browsable(true)]
[Description("是否允许空值")]
[DefaultValue("true")]
public bool AllowEmpty
{
get { return ViewState["AllowEmpty"] == null ? true : (bool) ViewState["AllowEmpty"]; }
set { ViewState["AllowEmpty"] = value; }
}
[Bindable(true)]
[Category("自定义信息区")]
[Browsable(true)]
[Description("验证数据类型，默认为不验证")]
[DefaultValue("IntPostive")]
public DataType ValidType
{
get { return ViewState["ValidType"] == null ? DataType.Never : (DataType) ViewState["ValidType"]; }
set { ViewState["ValidType"] = value; }
}
[Bindable(true)]
[Browsable(true)]
[Category("自定义信息区")]
[Description("自定义验证错误信息")]
[DefaultValue("")]
public string ValidError
{
get { return ViewState["ValidError"] == null ? "" : (string) ViewState["ValidError"]; }
set { ViewState["ValidError"] = value; }
}
[Bindable(true)]
[Browsable(true)]
[Category("自定义信息区")]
[Description("自定义用于验证的正则表达式，ValidType 为 Custom 时有效")]
[DefaultValue("")]
public string ValidExpressionCustom
{
get { return ViewState["ValidExpressionCustom"] == null ? "" : (string) ViewState["ValidExpressionCustom"]; }
set { ViewState["ValidExpressionCustom"] = value; }
}
[Bindable(true)]
[Browsable(true)]
[Category("自定义信息区")]
[Description("错误信息提示的CSS类名")]
[DefaultValue("")]
public string CssError
{
get { return ViewState["CssError"] == null ? "" : (string) ViewState["CssError"]; }
set { ViewState["CssError"] = value; }
}
#endregion
#region 构造函数
public WebTextBox() { }
#endregion
#region EnsureChildControls
protected override void EnsureChildControls()
{
this.rfvDataInput.CssClass = this.CssError;
this.rfvDataInput.ErrorMessage = "*输入不能为空";
this.rfvDataInput.Display = System.Web.UI.WebControls.ValidatorDisplay.Dynamic;
this.rfvDataInput.EnableViewState = true;
this.rfvDataInput.ControlToValidate = base.ID;
this.revDataInput.CssClass = this.CssError;
this.revDataInput.ErrorMessage = "*输入格式错误";
this.revDataInput.Display = System.Web.UI.WebControls.ValidatorDisplay.Dynamic;
this.revDataInput.EnableViewState = true;
this.revDataInput.ControlToValidate = base.ID;
//将子控件添加到此自定义控件中
this.Controls.Add(rfvDataInput);
this.Controls.Add(revDataInput);
this.Controls.Add(pnlFrame);
}
#endregion
/// <summary>
/// 根据设置的验证数据类型返回不同的正则表达式样
/// </summary>
/// <returns></returns>
#region GetRegex
private string GetValidRegex()
{
string regex = @"(\S)";
switch (this.ValidType)
{
case DataType.Never:
break;
case DataType.Int:
error = "*必须为整数";
regex = @"(-)?(\d+)";
break;
case DataType.IntPostive:
error = "*必须为大于0的整数";
regex = @"([1-9]{1}\d*)";
break;
case DataType.IntZeroPostive:
error = "*必须为不小于0的整数";
regex = @"(\d+)";
break;
case DataType.Float:
error = "*必须为数字";
regex = @"(-)?(\d+)(((\.)(\d)+))?";
break;
case DataType.FloatPostive:
error = "*必须为大于0的数字";
regex = @"(\d+)(((\.)(\d)+))?";
break;
case DataType.FloatZeroPostive:
error = "*必须为不小于0的数字";
regex = @"(\d+)(((\.)(\d)+))?";
break;
case DataType.Url:
error = "*URL格式错误";
regex = @"(http://)?([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?";
break;
case DataType.Mail:
error = "*EMail格式错误";
regex = @"\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*";
break;
// case DataType.ChineseChars :
// error = "*包含中文字符";
// regex = @"[^\x00-\xff]";
// break;
case DataType.EnglishChars:
error = "*只能输入英文字符";
regex = @"[a-zA-Z]*";
break;
case DataType.EngNum:
error = "*只能输入英文字符和数字";
regex = @"[a-zA-Z0-9]*";
break;
case DataType.EngNumUnerline:
error = "*只能输入英文字符、数字和下划线";
regex = @"[a-zA-Z0-9_]*";
break;
case DataType.PhoneNumber:
error = "*电话号码格式错误";
regex = @"(86)?(-)?(0\d{2,3})?(-)?(\d{7,8})(-)?(\d{1,5})?";
break;
case DataType.MobileNumber:
error = "*手机号码格式错误";
regex = @"(0)?(13)\d{9}";
break;
case DataType.PostalCode:
error = "*邮编格式错误";
regex = @"\d{6}";
break;
case DataType.Custom:
error = "*格式错误";
regex = this.ValidExpressionCustom;
break;
default:
break;
}
if (this.ValidError.Trim() != "")
error = this.ValidError;
return regex;
}
#endregion
#region 将此控件呈现给指定的输出参数
/// <summary>
/// 将此控件呈现给指定的输出参数。
/// </summary>
/// <param name="output"> 要写出到的 HTML 编写器 </param>
protected override void Render(HtmlTextWriter output)
{
base.Render(output);
output.Write(" ");
if (!this.AllowEmpty)
{
this.rfvDataInput.ID = "rfv" + base.ID;
this.rfvDataInput.ControlToValidate = base.ID;
this.rfvDataInput.RenderControl(output);
}
if (this.ValidType != DataType.Never && this.ValidType != DataType.String)
{
this.revDataInput.ID = "rev" + base.ID;
this.revDataInput.ControlToValidate = base.ID;
this.revDataInput.ValidationExpression = this.GetValidRegex();
this.revDataInput.ErrorMessage = error;
this.revDataInput.RenderControl(output);
}
}
#endregion
}
}
