This is a bit embarrassing...

I can't manage to add different values together...

My code:
Code:
TextBoxAnswer.Text = TextBox1.Text + TextBox2.Text + TextBox3.Text + TextBox4.Text
I import decimal values from my SQL Server into the TextBoxes 1-4, which works fine. But when I try to add the values together into another textbox the answer is just the values combined like a string...?
The column of the table in the SQL server has a datatype decimal(18, 2)

I have also tried to convert the values in the textboxes into int, str, double... Nothing seems to work...
Need some help here!


Example:
Answer = 2,50 + 2,50 + 5,50 + 4,50
So,
TextBoxAnswer.Text = 10,00

but, all I get is:
2,502,505,504,50