Saving application data?

Create a new solution(or use your solution).

Ok, so the first things you will need to do is add to the Settings.  This can be done by clicking on the Project, then going to View --> Property Pages.  Click on the "Settings" tab, and you will see the grid-like page.

For the "Name", type in the name of the setting.  For the "Type", select the type of the setting(string, int, connectionString, etc.), Set the "Scope" to "User"(this allows for editing of the values...setting it to "Application" makes it read-only), and leave the "Value" blank.  Now click the save button at the top.

For my example, I am going to create 3 settings named "TextFromTextBox1", "TextFromTextBox2", "TextFromTextBox3", and they will all have a "Type" of "string". 

In my example, I have created a simple Windows app that has 3 textboxes on the form, and they are all named the default name("textBox1", etc.).  I also have a "Save" button.

I have created two events:  the Form_Load event for the form, and the Click event for the button.

In the Form_Load, we are going to read from the settings file to get the text that was saved:

private void Form1_Load(object sender, EventArgs e)
{
    textBox1.Text = Properties.Settings.Default.TextFromTextBox1;
    textBox2.Text = Properties.Settings.Default.TextFromTextBox2;
    textBox3.Text = Properties.Settings.Default.TextFromTextBox3;
}

As you can see, the Settings that you created are now actual properties of the "Properties.Settings.Default" class.  This makes them very easy to interact with.

Now, to save the values, you would simply set the text from the textbox to the property and save:

private void btnSave_Click(object sender, EventArgs e)
{
    Properties.Settings.Default.TextFromTextBox1 = textBox1.Text;
    Properties.Settings.Default.TextFromTextBox2 = textBox2.Text;
    Properties.Settings.Default.TextFromTextBox3 = textBox3.Text;

    Properties.Settings.Default.Save();
}

Now build and run the application.  The textboxes will be blank the first time because we haven't saved anything.  Type something in all the boxes, then click Save.  Close the application, then run it again, and you will see the text that you typed will appear in the textboxes.

Let me know if you have any questions.