The codes are as following:
I tried to use server side page_load to get Session Data first， and then assign the data to Label lblTesting. This is successful, The value is displayed on Lable.
The codebehind codes are as following:
protected void Page_Load(object sender, EventArgs e)
string comingStr = Convert.ToString(Session["Transfer"]);
if (comingStr != null)
lblTesting.Text = comingStr;
lblTesting.Text = "Not Coming";