使用 验证控件 验证用户的输入字数

[code]

functionRemarkAreaValidation(source,arguments){

arguments.IsValid=checkInputLength(arguments.Value,1000);

}

functionRemarkAreaValidation2(source,arguments){

arguments.IsValid=checkInputLength(arguments.Value,500);

}

functioncheckInputLength(strInput,intLenLimit){

varbyteLength=0;

for(vari=0;i<strInput.length;i++){

varch=strInput.charAt(i);

//判断输入的是汉字还是字符

if(isNormalChar(ch))

byteLength+=1;

else

byteLength+=2;

}

if(byteLength>intLenLimit)

returnfalse;

returntrue;

}

functionisNormalChar(ch){

if(ch.length>1){

returnfalse;

}

if(ch==""){

returntrue;

}

varpattern=/^([\uFF66-\uFF9F]|[\u0000-\u00FF])*$/gi;

if(pattern.test(ch)){

returntrue;

}

else{

returnfalse;

}

}

[code]<asp:TextBoxID="txtAboutCompany"runat="server"TextMode="MultiLine"CssClass="customer_cardtextarea"></asp:TextBox></div>

<asp:CustomValidatorID="CustomValidator1"runat="server"ClientValidationFunction="RemarkAreaValidation"ErrorMessage="描述限制在1000个汉字以内！"ControlToValidate="txtAboutCompany"></asp:CustomValidator>

<asp:TextBoxID="txtPrimaryProduct"runat="server"TextMode="MultiLine"CssClass="customer_cardtextarea"></asp:TextBox></div>

<asp:CustomValidatorID="CustomValidator2"runat="server"ClientValidationFunction="RemarkAreaValidation2"ControlToValidate="txtPrimaryProduct"

ErrorMessage="字数控制在500个汉字以内！"></asp:CustomValidator>