c# - Prevent Range Validator to show error message with regular expression validator in asp.net -


i have 1 textbox id txtnumofbooks validating against following 3 validators: 

<asp:requiredfieldvalidator id="requiredfieldvalidator1" runat="server" controltovalidate="txtnumofbooks" display="dynamic" errormessage="please enter number of books" setfocusonerror="true" cssclass="style4" validationgroup="createvac"> </asp:requiredfieldvalidator>  <asp:regularexpressionvalidator id="regularexpressionvalidator2" runat="server" controltovalidate="txtnumofbooks" display="dynamic" errormessage="please enter valid number" validationexpression="[0-9]\d*[0-9]" cssclass="style4" validationgroup="createvac"> </asp:regularexpressionvalidator>  <asp:rangevalidator id="rangevalidator1" runat="server" controltovalidate="txtnumofbooks" display="dynamic" errormessage="number of books in book shelf should in range 1-100" maximumvalue="100" minimumvalue="1" type="integer" cssclass="style4" validationgroup="createvac"> </asp:rangevalidator>


however,whenever entered characters in textbox both messages:

please enter valid number number of books in book shelf should in range 1-100

are displayed.how can avoid range validator showing error message regular expression validator message?

finally, found answer.there need add javascript function removes unneccessary range validator message.the function is:

  function clearrangemessageposition() {             if (document.getelementbyid('<%=regularexpressionvalidator1.clientid %>').getattribute('isvalid') != true.tostring()) {                 document.getelementbyid('<%=rangevalidator1.clientid %>').innertext = "";             }             else {                 document.getelementbyid('<%=rangevalidator1.clientid %>').innertext = "please enter number of books in range 1-100";             }         }

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