当前文件路径：AspxNuke/Common/Component/NumericControl.cs

		            
  1using System;
  2using System.Web.UI;
  3using System.Web.UI.WebControls;
  4using System.ComponentModel;
  5using System.Text.RegularExpressions;
  6using System.Runtime.InteropServices;
  7
  8[assembly: WebResource("AspxNuke.Component.js.numeric.js", "application/x-javascript")]
  9namespace AspxNuke.Component
 10...{
 11    /**//// <summary>
 12    /// 数字控件。
 13    /// </summary>
 14    [DefaultProperty("Text"), 
 15    ToolboxData("<{0}:NumericControl runat=server></{0}:NumericControl>")]
 16    public class NumericControl : System.Web.UI.WebControls.TextBox
 17    ...{
 18        private const string NUMERAL_SCRIPT_KEYPRESS = "return NumericControl_Validate_KeyPress(this,{0},{1})";
 19        private const string NUMERAL_SCRIPT_PASTE = "return NumericControl_Validate_Paste(this)";
 20        private const string NUMERAL_SCRIPT_DRAGENTER = "return NumericControl_Validate_DragEnter(this)";
 21
 22        private void RenderJavscript()
 23        ...{
 24            ClientScriptManager scriptManager = Page.ClientScript;
 25            scriptManager.RegisterClientScriptResource(this.GetType(), "AspxNuke.Component.js.numeric.js");
 26        }
 27
 28        /**//// <summary>
 29        /// 将需要为控件呈现的 HTML 属性和样式添加到指定的 HtmlTextWriter 对象。
 30        /// </summary>
 31        /// <param name="writer">表示要在客户端呈现 HTML 内容的输出流。</param>
 32        protected override void AddAttributesToRender(HtmlTextWriter writer)
 33        ...{
 34            base.AddAttributesToRender(writer);
 35            writer.AddAttribute("onkeypress", string.Format(NUMERAL_SCRIPT_KEYPRESS,_decimals,AllowNegative.ToString().ToLower()));
 36            writer.AddAttribute("onpaste",NUMERAL_SCRIPT_PASTE);
 37            writer.AddAttribute("ondragenter",NUMERAL_SCRIPT_DRAGENTER);
 38        }
 39
 40        /**//// <summary>
 41        /// 通过查找文件数据或调用用户事件获取要呈现的广告信息。 
 42        /// </summary>
 43        /// <param name="e">包含事件数据的 EventArgs 对象。</param>
 44        protected override void OnPreRender(EventArgs e)
 45        ...{
 46            base.OnPreRender(e);
 47            RenderJavscript();
 48        }
 49
 50        /**//// <summary>
 51        /// 
 52        /// </summary>
 53        [Bindable(true), Category("Appearance"), DefaultValue(""), Description("TextBox_Text"), PersistenceMode(PersistenceMode.EncodedInnerDefaultProperty)]
 54        public override string Text
 55        ...{
 56            get
 57            ...{
 58                string str = (string) this.ViewState["Text"];
 59                if (str != null)
 60                ...{
 61                    return decimal.Parse(str).ToString(_format);
 62                }
 63                return string.Empty;
 64            }
 65            set
 66            ...{
 67                this.ViewState["Text"] = value;
 68            }
 69        }
 70
 71        /**//// <summary>
 72        /// 
 73        /// </summary>
 74        public NumericControl() : base()
 75        ...{}
 76
 77        private string _format;
 78        /**//// <summary>
 79        /// 格式化信息
 80        /// </summary>
 81        [Description("格式化信息"),Bindable(true), Category("Behavior"), DefaultValue("")]
 82        public string Format
 83        ...{
 84            set ...{_format = value;}
 85            get ...{return _format;}
 86        }
 87
 88        private int _decimals;
 89        /**//// <summary>
 90        /// 小数点位数
 91        /// </summary>
 92        [Description("小数点位数"),Bindable(true), Category("Behavior"), DefaultValue(0)]
 93        public int Decimals
 94        ...{
 95            set ...{ _decimals = value;}
 96            get ...{ return _decimals;}
 97        }
 98
 99        private bool _allowNegative=true;
100        /**//// <summary>
101        /// 是否负数
102        /// </summary>
103        [Description("是否负数"),Bindable(true), Category("Behavior"), DefaultValue(true)]
104        public bool AllowNegative
105        ...{
106            set ...{ _allowNegative = value;}
107            get ...{ return _allowNegative;}
108        }
109        
110    }
111}
112