postback and validation in asp.net and javascript -

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मेरे पास यह बहुत कुछ है

HTML

& lt; एएसपी: बटन आईडी = "बीटीएन सेव कॉन्टैस्ट" रनैट = "सर्वर" टेक्स्ट = "सहेजें और amp; प्रतियोगिता को प्रकाशित करें" OnClientClick = "मान्य करेंकैटेंटेस्ट ();" ValidationGroup = "ContestAdd" OnClick = "btnSaveContest_Click" कारणों के कारण वैधता = "गलत" />

जावास्क्रिप्ट 

  & lt; script type = "text / javascript" & gt; फ़ंक्शन ValidateCreateContest () {Page_ClientValidate (); अगर (Page_IsValid) {चेतावनी ('पृष्ठ मान्य है'); $ ('# & Lt;% = btnSaveContest.ClientID% & gt;')। Attr ('अक्षम', 'अक्षम'); __do पोस्टबैक ('& lt;% = btnSaveContest.ClientID% & gt;', '') सत्य वापस; } और {चेतावनी (मान्य नहीं है); विवरण झूठा है; }} & Lt; / script & gt;   
 यह पृष्ठ पर वापस पोस्ट करता है, लेकिन यह सर्वर साइड फ़ंक्शन  btnSaveContest_Click  पर नहीं जाता है। क्यों?   
 
 
  ClientID  का उपयोग न करें,  UniqueID का उपयोग करें < / कोड>  
  अगर (पेज_आईएसवैलिड) {चेतावनी ('पृष्ठ मान्य है'); $ ('# & Lt;% = btnSaveContest.ClientID% & gt;')। Attr ('अक्षम', 'अक्षम'); __do पोस्टबैक ('& lt;% = btnSaveContest.UniqueID% & gt;', '') सत्य वापस; } और {चेतावनी (मान्य नहीं है); विवरण झूठा है; }   
 यह उपयोगी हो सकता है।

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