数字验证 控件

 

整數：<asp:TextBox id=Rel_level BorderWidth= "0px" runat="server" onkeyup="if(event.keyCode !=37 && event.keyCode != 39) value=value.replace(/\D/g,'');" Height="18px" Width="55px" ></asp:TextBox>
數字：
<asp:textbox onkeypress="if(!this.value.match(/^[\+\-]?\d*?\.?\d*?$/))this.value=this.t_value;else this.t_value=this.value;if(this.value.match(/^(?:[\+\-]?\d+(?:\.\d+)?)?$/))this.o_value=this.value"
                                                        id="tbxwork_time" onblur="if(!this.value.match(/^(?:[\+\-]?\d+(?:\.\d+)?|\.\d*?)?$/))this.value=this.o_value;else{if(this.value.match(/^\.\d+$/))this.value=0+this.value;if(this.value.match(/^\.$/))this.value=0;this.o_value=this.value}"
                                                        onkeyup="if(!this.value.match(/^[\+\-]?\d*?\.?\d*?$/))this.value=this.t_value;else this.t_value=this.value;if(this.value.match(/^(?:[\+\-]?\d+(?:\.\d+)?)?$/))this.o_value=this.value;javascript:stat(this.value);"
                                                        runat="server"></asp:textbox>

<asp:TextBox id="tbxbudmoney" Width="80px"  runat="server" style="font-size:9pt;border:1px solid #003390;font-style:normal;" onkeyup="clearNoNum(this)" onchange="clearNoNum(this)"></asp:TextBox>
               // 限制只能輸入數字
                function clearNoNum(obj)
                {
                obj.value = obj.value.replace(/[^\d.]/g,""); // 把非數字和點 替換為 空
                obj.value = obj.value.replace(/^\./g,""); // 保證第一個數字不是點
                obj.value = obj.value.replace(/\.{2,}/g,"."); //保證只有一個. 沒有多個 .
                obj.value = obj.value.replace(".","$#$").replace(/\./g,"").replace("$#$","."); //保證.只出現一次，而不能出現兩次以上
                // 以下保證只能有兩個小數位
                var curvalue=obj.value;                
                if (curvalue.lastIndexOf('.')>=0)
                {
                    if (curvalue.split('.')[1].length>2)
                    {
                        curvalue=curvalue.substr(0,curvalue.lastIndexOf('.')+3);
                        obj.value=curvalue;    
                    }                
                }                
                }