CODEWITHSUNDEEP
c#asp.netsessionreturn
HGomez
HGomez

Reputation: 1534

Return Value From Session

Just small question as I cannot find an answer that resolves my problem.

I have an ASP page which sends input to a database and then creates a session. I would like to know how to return a certain value in that session on another aspx page.

page1.aspx.cs [creates session]

public partial class new_questionnaire : System.Web.UI.Page
    {
        OscarSQL c;

            protected void Page_Load(object sender, EventArgs e)
            {  
                c = new OscarSQL();
            } // End Page_Load

            //////    Button Method    //////        
            protected void NewQnrButton_Click(object sender, EventArgs e)
            {
                // Check if the input fields are empty.
                if (QuestionnaireName.Text == "" || CustomerID.Text == "" || NumberOfQuest.Text == "")
                {
                    Error.Text = "Please enter a name for your questionnaire.";
                }
                // Parse input values to OscarSQL.
                else
                {

                    int testRet = c.InsertQuestionnaire(QuestionnaireName.Text, Int32.Parse(CustomerID.Text), Int32.Parse(NumberOfQuest.Text));
                    Session["Questionnaire"] = testRet;
                    Confirm.Text = "Your questionnaire has been named " + QuestionnaireName.Text;
                    Response.Redirect("~/add_questions.aspx");
                }

            } // End NewQNRButton_Click

        } // End new_questionnaire

Page2.aspx.cs [Would like value to be parsed here]

namespace OSQARv0._1
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            //ReturnQnrName.Text here?

        }
    }
}

I would like the value QuestionnaireName.Text from Page1 to be returned to ReturnQnrName.Text on Page2

Upvotes: 0

Views: 3229

Answers (4)

Icarus
Icarus

Reputation: 63970

You are doing 

Session["Questionnaire"] = testRet;

On Page1. On Page2 you can just do:

protected void Page_Load(object sender, EventArgs e)
{
     string questionnaire = Session["Questionnaire"] as  string;
     if(!string.IsNullOrEmpty(questionnaire ))
     ReturnQnrName.Text =questionnaire ;

}

Note Just realized that you put an int in your session but you seemed to want to store a text in Session and retrieve it. The principle is the same.

Upvotes: 1

Anthony Pegram
Anthony Pegram

Reputation: 126992

You didn't put QuestionnaireName.Text into Session on Page1, you put an integer. If you need the actual text property, put that into session 

Session["theText"] = QuestionnaireName.Text;

And then you can retrieve it

string text = (string)Session["theText"];

This reveals something about Session. Objects are stored of type object, you need to cast them to their correct types once you retrieve them before use. For example, to retrieve the integer you put into Session, you would write

int questionnaire = (int)Session["Questionnaire"];

Upvotes: 5

Ravi Gadag
Ravi Gadag

Reputation: 15881

You can use Session["QuestionnaireName"] = QuestionnaireName.Text;

in the second page you can retrive values like below 

                string QuestionnarireName;
                if (Session["QuestionnaireName"] != null)
                {
                    QuestionnarireName = Session["QuestionnaireName"].ToString();

                }

or else you can put in ViewState also. Passing data between forms

Upvotes: 0

Crimsonland
Crimsonland

Reputation: 2194

Just do this:

 string question = Session["Questionnaire"];

    if(question=="")
    {
        //No Value
    }
else
{
    ReturnQnrName.Text = question;
}

Regards

Upvotes: 0

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