how to store data in memory and display data using array in windows application?

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.NET3.5

C#

.NET

I have one form in which i have 6 textbox control. i am storing form data in variable which is declared in class file. i want data should be stored in array and retrive data from array and display in textbox contorl. i want it should be done using class file.

below is my class file where i declared variable.

public static string emailid, address, street, city, telephoneno, pincode ;

In form i have button to store data in variable.

private void btnNext_Click(object sender, EventArgs e)
              {
               Data.emailid = txtemailid.Text;
               Data.address = txtaddress.Text;
               Data.street = txtstreet.Text;
               Data.ccity = txtcity.Text;
               Data.pincode = txtpincode.Text;
               Data.telephoneno = txttelephone.Text;
               }