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Data Grid Disappears after postback

Author
23 Jan 2005 5:27 PM
Hagai Amiel via .NET 247
Hello There
I have created a fully programmatically datagrid
each time I press any button, the datagrid disappears when it posts back
how do I keep the grid on the screen without re-constructing it from scratch each time?
I have tryed saving it on session variables without any success

Following my code

private void Page_Load(object sender, System.EventArgs e)
{
    if (! IsPostBack)
    {
    createColumns(); //creates the boundColumns of the grid
    BindGrid();
    Session["myDS"]=DS;
    Session["myDG"]=myUserDG;
        Session["myCom"]=comUsers;
    }
    else
    {   
    DS=(DataSet)Session["myDS"];
    myUserDG=(DataGrid)Session["myDG"];
    comUsers=(SqlDataAdapter)Session["myCom"];
        comUsers.Fill(DS, "USERS");
    myUserDG.DataBind();
    }
}

private void BindGrid()
{
    myUserDG.DataSource=CreateDataSet();
    myUserDG.DataMember="USERS";
    myUserDG.DataBind();
}

private DataSet CreateDataSet()
{
    connString=ConfigurationSettings.AppSettings["conn"];
    con=new SqlConnection(connString);
    comUsers=new SqlDataAdapter("getDetails",con);
    comUsers.SelectCommand.CommandType=CommandType.StoredProcedure;
    try
    {
            DS = new DataSet();
        comUsers.Fill(DS, "USERS");
        return DS;
    }
        catch(SqlException ex)
    {
        Response.Write("Errore retrieving Data:" + ex.Message.ToString() );
        return null;
    }
}
-------------------------------
From: Hagai Amiel

-----------------------
Posted by a user from .NET 247 (http://www.dotnet247.com/)

<Id>goP52tlzS0uYc+ab4puADg==</Id>

Author
24 Jan 2005 1:10 AM
Mike Ryan
Hello,

Try placing createColumns() outside the IsPostBack condition. You can do
the databind on the initial page load, but you'll need to re-create your
dynamic grid every time.

- Mike

Hagai Amiel via .NET 247 wrote:
Show quoteHide quote
> Hello There
> I have created a fully programmatically datagrid
> each time I press any button, the datagrid disappears when it posts back