Asp.net pass field values

Question

I am asking the following question since this is the first few C# asp.net 2010 web form pages I am working with at my company. My problem is I want to pass the value of orgName from the code listed below to a new web page called Next_Page.aspx as a session variable. The problem is by the time I get to the method called 'submit_button', I do not have the value of 'orgName' any longer. Thus can you tell me what I need to do to have the value of 'orgName' obtain from the 'FindOrg' available to the 'submit_button' method? If the value or orgname is within the (object sender, EventArgs e) of the SubmitButton method can you tell me how to access this value?

The code listed below is all from the same web page called first.aspx.cs.



The following is the current code:

protected void FindOrg(object sender, EventArgs e)
{
try
{
String strOrgSql = "";
String orgName = txtOrgName.Text.Trim();

}
catch (Exception ex)
{
//do something

}

}

protected void submit_button(object sender, EventArgs e)
{
try
{

want orgname value here

Session["orgname"] = orgname;
Response.Redirect("~/Next_Page.aspx");

}
catch (Exception ex)
{
// do something

}

}