ASP.NET WebForms: Short-circuit validation -


i have grid text box validating:

<telerik:radtextbox id="txtmerchmin" runat="server" text='<%# bind("merchandiseminimumamount") %>'></telerik:radtextbox>                     <asp:requiredfieldvalidator id="required" runat="server" errormessage="* required" controltovalidate="txtmerchmin"></asp:requiredfieldvalidator>                     <asp:comparevalidator runat="server" id="isnumbers" type="double" operator="datatypecheck" controltovalidate="txtmerchmin" errormessage="* must numeric" />                     <asp:comparevalidator runat="server" id="isnonnegative" type="double" operator="greaterthanequal" controltovalidate="txtmerchmin" amounttocompare="0" errormessage="* should non-negative"/>                     <asp:comparevalidator id="islessthanmax" controltovalidate="txtmerchmin" type="double" controltocompare="txtmerchmax" operator="lessthan" text="* should less max" runat="server"></asp:comparevalidator>

i validations run in following order , behave so:

  1. if required validation fails, show required's error message only.
  2. if isnumbers validation fails, show isnumber's error message only.
  3. if isnonnegative validation fails, show isnonnegative's error message only.
  4. if islessthanmax validation fails, show islessthanmax's error message only.

as code written right now, when value in txtmerchmin non-numbers, see error message of isnumbers, isnonnegative, , islessthanmax @ same time.

is there way "short-circuit" out of validation expected behavior?

just make customvalidator works on serverside , using if/else statements achieve behaviour. example:

<telerik:radtextbox id="txtmerchmin" runat="server" text='<%# bind("merchandiseminimumamount") %>'></telerik:radtextbox>     <asp:requiredfieldvalidator id="required" runat="server" errormessage="* required" controltovalidate="txtmerchmin"></asp:requiredfieldvalidator>     <asp:customvalidator runat="server" id="customvalidator" display="dynamic" setfocusonerror="true" controltovalidate="txtmerchmin"></asp:customvalidator>

in code behind in init method set (you can in markup)

customvalidator.servervalidate += new servervalidateeventhandler(customvalidator_servervalidate);

and in function implement logic:

protected void customvalidator_servervalidate(object source, servervalidateeventargs args) {     bool isvalid = true;      double price;     bool isdouble = double.tryparse(args.value, out price);     if(!isdouble) {       // not double (numeric)       isvalid = false;     }     else if (...)     else if (...)      args.isvalid = isvalid; }

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