如何将多个文本框的内容读入数组？

I have to write a program (C#, WPF), where data is retrieved from ~30 TextBoxes. I'd like to cycle the textboxes through. I tried to create an array of textboxes, but it didn't work very well because in every method I had to repeatedly reinitialize this array.I have to write a program (C#, WPF), where data