How can I change the settings of the textbox of one form using another form in the same project?

Make the textbox that you want to change "public". For example, you have a textbox called "TextBox1" and you want to change it's properties.

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Public Shared TBox1 as TextBox
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Then set that variable equal to the "TextBox1"

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TBox1 = TextBox1
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Then from your other form you can access it's properties:

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[Form1Name].TBox1.Text = [Form2TextBoxName].Text
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J

Thanks.