How do I set an ASP NET Label text from code behind on page load

Question

I can t seem to find an answer out there for this  Here s the scenario  I have an ASP NET project using C   I m loading data  Username  email  etc     from a sqlite database with C   using ADO   I ll be loading the data into static Global variables in a class file in my App Data folder  I need to be able to insert the username into an ASP NET Label on a page during load   In PHP  I would just do it like this    lt  php function GetUserName       code which retrieves username from db  return username      gt   lt p gt Here is the username   lt  php echo GetUserName      gt  lt  p gt    Can anyone explain how this is done  I m new to ASP NET        Here s an update for some more detail  I tried what you guys have suggested  My page load function is in a file called RankPage aspx cs and the table below it is in RankPage aspx  The idea is to list a bunch of users that I ve retrieved from the database  I threw in  myLabel  just to test it  Right now  without declaring  myLabel  in my code behind  it errors that  myLabel  does not exist in the current context  If I declare  myLabel  using the FindControl   function  I get a runtime exception that  myLabel  isn t set to an instance of an object    Here s the code   protected void Page Load object sender  EventArgs e        if   Page IsPostBack                Label myLabel   this FindControl  myLabel   as Label          myLabel Text    my text             lt table gt       lt tbody gt           lt tr gt               lt th gt Name lt  th gt               lt th gt Score lt  th gt           lt  tr gt            lt tr gt               lt td gt name lt  td gt               lt td gt Score lt  td gt           lt  tr gt            lt  -- Current User -- gt           lt tr gt               lt td gt  lt asp Label id  currentUserName  runat  server  gt  lt  asp Label gt  lt  td gt               lt td gt  lt asp Label id  currentUserScore  runat  server  gt  lt  asp Label gt  lt  td gt               lt td gt  lt asp Label ID  myLabel  runat  server    gt  lt  td gt           lt  tr gt           lt  -- End Current User -- gt        lt  tbody gt   lt  table gt

User · Answer

In the page load event you set your label  lbl username text    some text

User · Answer

protected void Page Load object sender  EventArgs e        myLabel Text    My text       this is the base of ASP Net  thinking in controls  not html flow   Consider following a course  or reading a beginner book    and first  forget what you did in php

User · Answer

For this label    lt asp label id  myLabel  runat  server    gt    In the code behind use  C     myLabel Text    my text        Update  following updated question    You do not need to use FindControl - that whole line is superfluous     Label myLabel   this FindControl  myLabel   as Label    myLabel Text    my text     Should be just     myLabel Text    my text     The Visual Studio designer should create a file with all the server side controls already added properly to the class  in a RankPage aspx designer cs file  by default    You are talking about a RankPage cs file - the way Visual Studio would have named it is RankPage aspx cs  How are you linking these files together

User · Answer

Try something like this in your aspx page   lt asp Label ID  myLabel  runat  server  gt  lt  asp Label gt    and then in your codebehind you can just do   myLabel Text    My Label

User · Answer

In your ASP NET page    lt asp Label ID  UserNameLabel  runat  server    gt    In your code behind  assuming you re using C     function Page Load object sender  EventArgs e        if   Page IsPostBack               UserNameLabel Text    User Name

User · Answer

If you are just placing the code on the page  usually the code behind will get an auto generated field you to use like  Oded has shown    In other cases  you can always use this code   Label myLabel   this FindControl  myLabel   as Label     this is your Page class  if myLabel    null     myLabel Text    SomeText

User · Answer

I know this was posted a long while ago  and it has been marked answered  but to me  the selected answer was not answering the question I thought the user was posing   It seemed to me he was looking for the approach one can take in ASP  Net that corresponds to his inline data binding previously performed in php   Here was his php    lt p gt Here is the username   lt  php echo GetUserName      gt  lt  p gt    Here is what one would do in ASP  Net    lt p gt Here is the username   lt    GetUserName     gt  lt  p gt

[asp.net] How do I set an ASP.NET Label text from code behind on page load?

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