ASP.NET

protected void ButtonGoBack_Click(object sender, EventArgs e)
{
    LoadPreviousVersion();
}

private void LoadPreviousVersion()
   {
       //Get requested version and test result
       int requestedVersion = (int.Parse(LabelVersion.Text)) - 1;
       if (requestedVersion < 1)
           requestedVersion = 1;

       //Set Label for new version
       LabelVersion.Text = requestedVersion.ToString();

       //Determine Edit Button availability
       if (int.Parse(LabelVersion.Text) != int.Parse(lastCompletedVersion))
           ButtonEdit.Enabled = false;
       else
           ButtonEdit.Enabled = true;

       //Create Medical Date
       medDate = CreateMedicalDate(medDate);

       //Load the results for the requested AE

       //Create a new SQL Connection Object
       SqlConnection Conn = new SqlConnection(CONNSTR);

       try
       {
           string Sql = "SELECT [Id],[Period] , [Screening_Number] , [Site_Number] , " +
           "[Version_Id],[Version] , [Ae] , [Frequency] , [Visit] , [VisitNumber] , [Date_Onset] , " +
           "[Ongoing] , [Date_Ended] , [CTCAE] , [Serious] , [Related] , [Action] , [Outcome] , " +
           "[NewConMedsY], [NewConMedsN], [SubBy] , [SubOn] , [Sae_Rpt_Status] " +
           "FROM Adverse_Events WHERE [Version_Id] = @Version_Id AND [Version] = @RequestedVersion ";

           //Set Command Object Headers
           SqlCommand Comm = new SqlCommand(Sql, Conn);
           Comm.CommandType = CommandType.Text;

           //Comm Paramemters
           Comm.Parameters.Clear();
           Comm.Parameters.AddWithValue("@Version_Id", Version_Id);
           Comm.Parameters.AddWithValue("@RequestedVersion", requestedVersion);

           //Create a Dataset
           SqlDataAdapter da = new SqlDataAdapter(Comm);
           DataSet ds = new DataSet();
           da.Fill(ds);

           //Send results to the controls
           LabelPeriod.Text = ds.Tables[0].Rows[0]["Period"].ToString();
           LabelScreeningNumber.Text = ds.Tables[0].Rows[0]["Screening_Number"].ToString();
           LabelVersion.Text = ds.Tables[0].Rows[0]["Version"].ToString();
           LabelId.Text = ds.Tables[0].Rows[0]["Id"].ToString();
           LabelAe.Text = ds.Tables[0].Rows[0]["Ae"].ToString();
           LabelFrequency.Text = ds.Tables[0].Rows[0]["Frequency"].ToString();
           LabelVisit.Text = ds.Tables[0].Rows[0]["Visit"].ToString();
           LabelVisitNum.Text = ds.Tables[0].Rows[0]["VisitNumber"].ToString();
           LabelDateStarted.Text = ds.Tables[0].Rows[0]["Date_Onset"].ToString();
           LabelOngoing.Text = ds.Tables[0].Rows[0]["Ongoing"].ToString();
           LabelDateStopped.Text = ds.Tables[0].Rows[0]["Date_Ended"].ToString();
           LabelCtcae.Text = ds.Tables[0].Rows[0]["CTCAE"].ToString();
           LabelSerious.Text = ds.Tables[0].Rows[0]["Serious"].ToString();
           LabelRelated.Text = ds.Tables[0].Rows[0]["Related"].ToString();
           LabelAction.Text = ds.Tables[0].Rows[0]["Action"].ToString();
           LabelOutcome.Text = ds.Tables[0].Rows[0]["Outcome"].ToString();
           RadioButtonConMedY.Checked = Convert.ToBoolean(ds.Tables[0].Rows[0]["NewConMedsY"].ToString());
           RadioButtonConMedN.Checked = Convert.ToBoolean(ds.Tables[0].Rows[0]["NewConMedsN"].ToString());
           LabelSubBy.Text = Session["Name"].ToString();
           LabelSubOn.Text = medDate;

       }
       catch (Exception ex)  //Catch Errors
       {
           Console.WriteLine("Error : " + ex.Message);
       }

       //Response.Write("<script>document.forms[0].submit();</script>");

   }

PDTUM wrote:

I have written a page that accepts new information and then repopulates the page when a button is clicked. This is a simple task in C#, but seems very complicated in ASP.net. The code seems to work fine on the first click, but the after the first click, the page no longer repopulates.

PDTUM wrote:

This page is brought up from a click event on another page's GridView and is supposed to populate information accordingly.

protected void Page_Load(object sender, EventArgs e)    {
    if (Page.IsPostBack)
            { 
                LabelVersion label gets deincremented here
            }     

    medDate = CreateMedicalDate(medDate);
        //Load the results for the requested AE
        //Pass the values for the selected AE from the AE Summary Page        
id = Request.QueryString["Id"];
        Screening_Number = Request.QueryString["Screening_Number"];
        Site_Number = Request.QueryString["Site_Number"];

developerit wrote:

can you give examples which helps me

protected void Page_Load(object sender, EventArgs e)
{
   if(!IsPostBack)
    {
       FillConatcsGrid();//fills you contacts datagrid only once
       CheckSessionId();//Will check the session id if need be only once
       //Then you can go ahead with more fun in here...
    }
}

protected void DateFrom_SelectedIndexChanged(object sender, EventArgs e)
{
   calDateFrom.Visible = true;
   this.DateFrom.Text = calDateFrom.SelectedDate.ToString();
}