How to avoid page refresh after button click event in asp net

Question

This is the following code the page refreshes as soon as the btninsert click event is completed i want to stop the page refresh after the btninsert is click   lt asp UpdatePanel ID  UpdatePanel1  runat  server  gt        lt ContentTemplate gt             lt div style  margin-bottom  20px  margin-top  20px   gt  lt span gt  lt strong style  font-size  large   gt Edit User lt  strong gt  lt  span gt  lt  div gt           lt div gt               lt span style  float  left  width  50    gt  amp nbsp  lt  span gt   lt span style  float  left  width  50    gt                   lt span style  width  100   float  left  text-align  right   gt                       lt asp Label ID  lblMessage  runat  server  Text  -  gt  lt  asp Label gt  lt  span gt               lt  span gt           lt  div gt            lt div style  width  100   float  left   gt               lt hr   gt           lt  div gt             lt div style  width  816px  margin-left  5px  margin-top  20px  height  463px   gt                lt div style  width  100   float  left  padding-top  15px  height  257px  margin-left  0px   gt                   lt span class  Divide  gt                       lt span class  simDivide1  gt FullName lt  span gt                       lt span class  simDivide  gt                           lt asp TextBox ID  txtfullname  runat  server  Width  180px  gt                           lt  asp TextBox gt                       lt  span gt                     lt  span gt                   lt span class  Divide  gt                       lt span class  simDivide1  gt  lt  span gt                       lt span class  simDivide  gt  lt  span gt                   lt  span gt                     lt span class  Divide  gt                       lt span class  simDivide1  gt Username lt  span gt                       lt span class  simDivide  gt                           lt asp TextBox ID  txtusername  runat  server  Width  180px  gt                           lt  asp TextBox gt                       lt  span gt                   lt  span gt                    lt span class  Divide  gt                       lt span class  simDivide1  gt  lt  span gt                       lt span class  simDivide  gt  lt  span gt                   lt  span gt                    lt span class  Divide  gt                       lt span class  simDivide1  gt Password lt  span gt                       lt span class  simDivide  gt                           lt asp TextBox ID  txtpassword  runat  server  Width  180px  gt                           lt  asp TextBox gt                       lt  span gt                   lt  span gt                    lt span class  Divide  gt                       lt span class  simDivide1  gt  lt  span gt                       lt span class  simDivide  gt  lt  span gt                   lt  span gt                     lt span class  Divide  gt                       lt span class  simDivide1  gt Mobile No                      lt  span gt                       amp nbsp  lt span class  simDivide  gt  lt asp TextBox ID  txtmobileno  runat  server  Width  180px  gt                       lt  asp TextBox gt                       lt  span gt                   lt  span gt                    lt span class  Divide  gt                        lt span class  simDivide  gt  lt  span gt                   lt  span gt                     lt span class  Divide  gt                       lt span class  simDivide1  gt Role                      lt  span gt                       amp nbsp  lt span class  simDivide  gt  lt asp TextBox ID  txtrole  runat  server  Width  180px  gt                       lt  asp TextBox gt                       lt  span gt                   lt  span gt                      lt script src  jquery-2 0 2 js  gt  lt  script gt                    lt script language  javascript  gt                       function done                             var list   document getElementById  tid                            list removeChild list lastChild                                                 function changecourse e                             var change   document getElementById  mytext   value                          var i   1                           mNewObj   document createElement  div                            mNewObj id    BOX    i                          mNewObj style visibility    show                           mNewObj innerHTML   change     amp nbsp lt a href     style  text-decoration  none  color red  onClick  done    gt  x  lt  a gt                               document getElementById  tid   appendChild mNewObj                           i                           var a   document getElementById  mytext   selectedIndex                          document getElementById  ContentPlaceHolder1 Hidden1   value   a                            document getElementById  ContentPlaceHolder1 btninsert   click                             deleted                                                   function yes                                  ContentPlaceHolder1 btninsert   click                                                   function insert                                  ajax                                 type   POST                                 url   Edituser aspx cs insert                                  success  function      alert  success                                     error  function      alert  error                                                                                     function cancel                              var select   document getElementById  mytext                            select remove select selectedIndex                                               function deleted                              document getElementById  mytext   style display    none                           document getElementById  Button1   style display    none                           document getElementById  tid   style display    inline                           document getElementById  mylink   style display    inline                                                function showdiv                              document getElementById  mylink   style display    none                           document getElementById  mytext   style display    inline                           document getElementById  Button1   style display    inline                                              lt  script gt                  lt input id  Hidden1  type  hidden  runat  server    gt               lt  div gt               lt asp Button ID  btnUpdate  runat  server  OnClick  btnUpdate Click  Style  margin-left  5px  Text  Edit  Width  39px    gt               lt br gt               lt br gt                lt asp UpdatePanel runat  server  gt                   lt ContentTemplate gt              amp nbsp amp nbsp amp nbsp amp nbsp lt div id  tid   gt                                  lt  div gt               lt div id  di  gt                    lt a id  mylink  onclick  showdiv    gt Add Depot lt  a gt                    lt select id  mytext  name  mytext  style  display  none  gt                       lt option gt --Select-- lt  option gt                       lt option gt Mumbai lt  option gt                       lt option gt Delhi lt  option gt                       lt option gt Banglore lt  option gt                       lt option gt Ahmedabad lt  option gt                   lt  select gt                  lt input type  button  id  Button1  style  display  none  onclick   changecourse    yes    cancel    return false   value  add    gt                   lt  div gt               lt asp Button ID  btninsert  runat  server   Style  display  none  OnClick  btninsert Click  Text  Insert  ValidationGroup  C    gt                    lt  ContentTemplate gt                   lt  asp UpdatePanel gt                lt  ContentTemplate gt   lt  asp UpdatePanel gt      and this is Edit aspx cs in which i have method      protected void btninsert Click object sender  EventArgs e                string a   Hidden1 Value          string UserId   Convert ToString Session  LoginId             con Open            SqlCommand cmd   new SqlCommand  INSERT INTO UserDepot  UserId DepotId                  VALUES       UserId           a         con           cmd ExecuteNonQuery            con Close

User · Answer

Add OnClientClick  return false         lt asp button ID  btninsert  runat  server  text  Button  OnClientClick  return false     gt    or in the CodeBehind    btninsert Attributes Add  onclick    return false

User · Answer

if you have some codes in your Page Load method and you don t want that those execute after button click use  if  IsPostBack   on Page Load  protected void Page Load object sender  EventArgs e        if   IsPostBack                  put codes here           asp Button is a server control and for send request to server and get response need page refresh  You can use JQuery and Ajax to prevent full Page refresh

User · Answer

When one has to scroll down a gridview to select a row  MaintainScrollPositionOnPostBack  true  will make it continue to show that row after one has selected it

User · Answer

Page got refreshed when a trip to server is made  and server controls like Button has a property AutoPostback   true by default which means whenever they are clicked a trip to server will be made  Set AutoPostback   false for insert button  and this will do the trick for you

User · Answer

Set MaintainScrollPositionOnPostBack  true  in the page declaration    lt    Page Language  C   MaintainScrollPositionOnPostBack  true  Title  Home    gt

User · Answer

I had the same problem with a button doing a page refresh before doing the actual button click event  so the button had to be clicked twice   This behavior happened after a server transfer-command  server transfer  testpage aspx     In this case  the solution was to replace the server transfer-command with response-redirect  response redirect  testpage aspx     For details on the differences between the two commands  see  Server Transfer Vs  Response Redirect

User · Answer

As you are using asp Button which is a server control  post back will happen to avoid that go for html button   asp Button        gt    Type to  input type  button         gt

User · Answer

html    input type   text  id  txtnothing  runat   server      javacript  var txt   document getElementById  txtnothing            txt value    Date now      code   If Not  Session  txtnothing   Is Nothing OrElse String IsNullOrEmpty Session  txtnothing     Then             If Session  txtnothing     txtnothing Value Then                 lblMsg Text    Please try again not a valid request                  Exit Sub             End If         End If         Session  txtnothing     txtnothing Value

User · Answer

After button click event complete your any task   last line copy and past it   Is s Working Fine   C  in Asp Net Page Header Controls Add new LiteralControl string Format   quot   lt META http-equiv  REFRESH  content 3 1 url  0  gt   quot   Request Url AbsoluteUri

User · Answer

I think I also have this problem  I was trying to make calendar visible after clicking a button but the page keeps refreshing after clicking the button  MaintainScrollPositionOnPostBack  true    This actually answered my problem   I cant vote or comment  I just joined SO today

[c#] How to avoid page refresh after button click event in asp.net

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