CODEWITHSUNDEEP
c#javascriptjqueryasp.netvb.net
Mina Gabriel
Mina Gabriel

Reputation: 25080

vb.net form and jquery validation

i have a vb.net form button that go through a jquery validation before excude a function in the code behind , actually in either ways if the validation is true or false the function stopped and never call the vb.net function how can i make the it proceed to the code behind ?

vb.net form (textbox and button ) 

      <asp:TextBox ID="ToCc" runat="server"></asp:TextBox>
    <asp:Button ID="emailSend" runat="server" Text="send" />

jquery : 

   $("#<%=emailSend.ClientID %>").click(function(){
          if($("#<%=ToCc.ClientID %>").val() == ""){
            alert("this fienld can't be empty") ; 
            return false ; 
          } else{
    return true ; 
}

         });

the email click vb function is 

 Protected Sub emailSend_Click(ByVal sender As Object, ByVal e As EventArgs) Handles 

    emailSend.Click

   MsgBox("do any thing ") 

   End Sub

Upvotes: 0

Views: 1337

Answers (3)

RemarkLima
RemarkLima

Reputation: 12037

More concise and a little more "jQuery"'d:

$("#<%=emailSend.ClientID %>").click(function(event) { 
      if($("#<%=ToCc.ClientID %>").val() == "") { 
        alert("this field can't be empty") ;  
        event.preventDefault(); 
      }  
});

By default it'll return true if everything is OK.

Upvotes: 0

Babak Naffas
Babak Naffas

Reputation: 12561

You haven't assigned your emailSend_Click method as the event handler for the button. Secondly, you can use the RequiredFieldValidator to accomplish your validation goals.

Try <asp:Button ID="emailSend" runat="server" Text="send" onclick="emailSend_Click" />

Additionally, remove the statement emailSend.Click from your code behind. You are already in the click event handler.

Upvotes: 1

Frenchi In LA
Frenchi In LA

Reputation: 3169

this is jquery version

$('input[id$=emailSend]').click(function(){
if($('input[id$=ToCc]').val() == ''){
            alert("this fienld can't be empty") ; 
            return false ; 
          } 
});

Upvotes: 0

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