Are you looking just to have persistent data? If so, there are a number of options.
If you have many users, I recommend looking into using a relational database, such as SqlLite, SqlServer, or MySql.
If you have a single user, this may not be necessary. You may just need to export data to a file. There are a number of data formats that would typically suffice for your application. Common ones include CSV and XML.
However, if you are asking more along the lines of making your code a bit less...repetitive, I would recommend using iteration; something like this:
For Each ctrl As Control In Form1.Controls
If ctrl.GetType() = GetType(TextBox) Or ctrl.GetType() = GetType(ComboBox) Then
objWriter.WriteLine(ctrl.Text)
End If
Next
You could use the same code for Form2, or even iterate over a number of Forms.
Of course, you may want to replace the WriteLine code with a different function, depending on whether you change how you export the data.
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