自定义textbox控件怎么取得到输入的value值和保存返回!
下面是我定义的一个textbox控件,怎么每次在onblur后输入的都没有了!我怎么去保存输入的值或者取得!
回答者不要说继承textbox类!
using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security;
using System.Security.Permissions;
using System.Drawing;
namespace ValidateTextInput
{
[DefaultProperty( "Input ")]
[ToolboxData( " <{0}:ValidateInput runat=server> </{0}:ValidateInput> ")]
public class ValidateInput: Control,IPostBackEventHandler
{
[Bindable(true),
Category( "Appearance "),
DefaultValue( " "),
Description( "文本值 "),
Localizable(true),
PersistenceMode(PersistenceMode.InnerDefaultProperty)
]
public virtual string Text
{
get
{
string s = (string)ViewState[ "Text "];
return (s == null) ? String.Empty : s;
}
set
{
ViewState[ "Text "] = value;
}
}
[Bindable(true),
Category( "Appearance "),
DefaultValue( " "),
Description( "文本值 "),
Localizable(true),
PersistenceMode(PersistenceMode.InnerDefaultProperty)
]
public string Value
{
get
{
string s = (string)ViewState[ "Value "];
return (s == null) ? String.Empty : s;
}
set
{
ViewState[ "Value "] = value;
}
}
[Bindable(true), Category( "Appearance "), DefaultValue( " "), Description( "宽度 ")]
public Unit Width
{
get
{
object o = ViewState[ "Width "];
return (o == null) ? Unit.Empty : (Unit)o;
}
set
{
if (value.Value < 0)
throw new ArgumentOutOfRangeException( "value ");
ViewState[ "Width "] = value;
}
}
[Bindable(true),Category( "Appearance "),DefaultValue( " "),Description( "高度 ")]
public Unit Height
{
get
{
object o = ViewState[ "Height "];
return (o == null) ? Unit.Empty : (Unit)o;
}
set
{
if (value.Value < 0)
throw new ArgumentOutOfRangeException( "value ");
ViewState[ "Height "] = value;
}
}
[Bindable(true), Category( "Appearance "), DefaultValue(typeof(Color), " "), Description( "控件背景颜色 "),TypeConverter(typeof(WebControl))]
public Color BackColor
{
get
{
object o = ViewState[ "BackColor "];
return (o == null) ? Color.Empty : (Color)o;
}
set
{
ViewState[ "BackColor "] = value;
}
}
[Bindable(true), Category( "Appearance "), DefaultValue(typeof(Color), " "), Description( "控件边框颜色 "), TypeConverter(typeof(WebControl))]
public Color BorderColor
{
get
{
object o = ViewState[ "BorderColor "];
return (o == null) ? Color.Empty : (Color)o;
}
set
{
ViewState[ "BorderColor "] = value;
}
}
protected override void Render(HtmlTextWriter writer)
{
writer.AddAttribute(HtmlTextWriterAttribute.Type,
"Text ");
writer.AddAttribute(HtmlTextWriterAttribute.Name,
this.UniqueID);
writer.AddAttribute(HtmlTextWriterAttribute.Id,
this.ID);
writer.AddAttribute(HtmlTextWriterAttribute.Value, this.Value);
writer.AddAttribute( "onblur ", Page.GetPostBackEventReference(this));
writer.RenderBeginTag(HtmlTextWriterTag.Input);
writer.RenderEndTag();
base.Render(writer);
}
public virtual void RaisePostBackEvent(string eventArgument)
{
OnBlurThis(new EventArgs());
}
public event EventHandler OnBlur;
protected virtual void OnBlurThis(EventArgs e)
{
if (OnBlur != null)
{
OnBlur(this, null);
}
}
}
}
[解决办法]
沙发,帮你顶
[解决办法]
学习 帮你顶。
[解决办法]
继续帮你顶，楼上的厉害啊......
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