postback problem RSS

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  cdamy

  Member

  2 Points

  6 Posts

  postback problem

  Dec 26, 2012 01:08 PM|LINK

  Hello,

  i am trying to change textbox value that i retrieved. I have a form which contains, a combobox from ajaxcontroltoolkit, a button to submit, a textbox for inserting comments. To beginning  when i change a combobox value, automatically, the comment stored in database is filled in textbox. Now even i change this comment, i still have older comment which is retrieved from database, new comment is never stored.

  The autopostback on textbox is false. I tried to make it in true, no change. I tried to implement textchanged event. Same result.

  When i add a test on ispostback property same result.

  Here is some code:

              try
              {
                  CbNomContact.Enabled = true;
                
                      if (cbMission.SelectedValue.ToString().Contains("Numéro:"))
                      {
  
                          first = cbMission.Text.IndexOf("Numéro:");
                          numSA = cbMission.SelectedValue.ToString().Substring(first + 7, first + 2);
  
  
                          CbNomContact.DataSource = BindContacts(numSA);
  
                          CbNomContact.DataBind();
  
                          CbNomContact.SelectedIndexChanged += new EventHandler(CbNomContact_SelectedIndexChanged);
                         
                            txbxdesc.Text = RetrieveServiceAppointmentDescription(numSA);
  
                          txbxObs.Text = RetrieveServiceAppointmentObservation(numSA);
                           
               
  
                 }
              }
              catch (Exception e) {
  
                  e.ToString();
              
              }

  The change in combobox call this method. the submit method attached on button call implicitly again this method and overwrite the value of comment. I have a autopostback on true in combobox. I tried to make it at false, no change appear.

  Any idea?

  Thanks
        
  
  

• • Reply
  

  nikunjnandan...

  Participant

  882 Points

  223 Posts

  Re: postback problem

  Dec 27, 2012 04:44 AM|LINK

  Hii,

  R u getting value in text box in page load event??

  If yes then try to put your code in If Not is postback and then check.

  I think this is the cause when you page is getting postback and pageload event is fired and your text get value from your database.

  Regards,
  Nikunj Nandaniya
  My Blog
• • Reply
  

  cdamy

  Member

  2 Points

  6 Posts

  Re: postback problem

  Dec 27, 2012 07:48 AM|LINK

  Hello,

  thank for u r reply. this is my page load handler,

   protected void Page_Load(object sender, EventArgs e)
          {
              Response.AddHeader("pragma", "no-cache");
              Response.CacheControl = "no-cache";
  
  
                  
                  BindSA();
            
  
  
          }
  i tried before:

  if(!IsPostBack){

  BindSA();

  }

  When i chose this option the SelectedIndexChanged on combobox did not work .

  Here is few code of BindSA():

   string[] missions = RetrieveServiceAppointments();
                  if (missions != null)
                  {
  
  
                      cbMission.DataSource = missions;
  
                      cbMission.DataBind();
                      cbMission.SelectedIndexChanged+=new EventHandler(cbMission_SelectedIndexChanged);
  }

  Thanks