How to use the both JavaScript validation and asp.net validation for a control

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JavaScript

function myFunction() {
    var DOB = document.getElementById("<%= DOB_Day.ClientID %>").value;
    var DOBsubstring = DOB.substring(6, 10);
    var DOBconv = parseInt(DOBsubstring);
    var DOBYear = DOBconv + 13;
    var tenth = document.getElementById("<%= TenYear.ClientID %>").value;
    var twelth = document.getElementById("<%= TwelveYear.ClientID %>").value;
    var ug = document.getElementById("<%= GradYear.ClientID %>").value;
    var pg = document.getElementById("<%= PostGradYear.ClientID %>").value;
    var nctvt = document.getElementById("<%= TextBox1.ClientID %>").value;

    if (DOBYear < tenth) {
      if (twelth != "" && tenth != "") {
          if (twelth <= tenth) {
              alert("Twelth Passing year Should be Greater then Tenth Passing Year !");
              return false;
          }
      }
    }
    else {
      alert("Tenth Passing year Should be Greater then 13 year from Birth !");
      return false;
    }
    if (ug != "" && twelth != "") {
      if (ug <= twelth) {
          alert("UG Passing year Should be Greater then Twelth Passing Year !");
          return false;
      }
    }
    if (ug != "" && tenth != "") {
      if (ug <= tenth) {
          alert("UG Passing year Should be Greater then Tenth Passing Year !");
          return false;
      }
    }
    if (pg != "" && tenth != "") {
      if (pg <= tenth) {
          alert("PG Passing year Should be Greater then Tenth passing year !");
          return false;
      }
    }
    if (pg != "" && ug != "") {
      if (pg <= ug) {
          alert("PG Passing year Should be Greater then UG Passing Year !");
          return false;
      }
    }
    if (nctvt != "" && tenth != "") {
      if (nctvt <= tenth) {
          alert("NCTVT/NAC Passing year Should be Greater then Tenth Passing Year !");
          return false;
      }
    }
}

Where i put required field validation control for DOB_Day, TenYear, TwelveYear, TwelveYear, PostGradYear. When i click submit button JavaScript validation working but Asp.Net RequiredField Validation control is not working....

Answer Me !

Posted 11-Mar-14 0:13am

Pugal Kannan

Updated 11-Mar-14 2:29am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v3

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Manikandan K · Answer 1 · 2014-03-11T20:29:00

Solution 2

Because of your "return false" code in each loop, Server Side Validation is Prevented..
Use either Client Side or Server Side Validation, for your code Server side Validation is not needed, I think...

Posted 11-Mar-14 20:29pm

Manikandan K

Ramug10 · Answer 2 · 2014-03-11T20:49:00

Quote:
if (DOBYear < tenth) {
if (twelth != "" && tenth != "") {
if (twelth <= tenth) {
alert("Twelth Passing year Should be Greater then Tenth Passing Year !");
return false;
}
}
}
else {
alert("Tenth Passing year Should be Greater then 13 year from Birth !");
return false;
}

The above mentioned your validation code will not allow server side validation, because your code paths returning false so it will stop server side validation.You can use either client side validations or server side validation.If you have any special scenario means still you want to use both validations modify your return statement to "return true"

Thanks,
-RG