如何在WPF C#中获取多文本框作为方法的输入参数

Question

I'm using WPF C# Visual Studio

I have a method in my public class. I want to get many textboxes in the input of parameter in a method. That method will remove zero at first of length textbox like this: 0123 => 123

here is my method:

public static void Remove_Zero_atFirst(TextBox TXB2)
{
    TXB2.Text = TXB2.Text.TrimStart('0').Trim();
}

What I need is something like this when I want to use that method:

Remove_Zero_atFirst(textbox1,textbox2,textbox3, . . .);

What have I tried:

public static class Texchanger
{
     public static void Del_Multi_SepTexs(IEnumerable<TextBox> TXBS)
     {
         TXBS.Text = TXBS.Text.TrimStart('0').Trim();
     }
}

In that what I tried line have error:

does not contain a definition for 'Text' and no accessible extension method 'Text' accepting a first argument of type 'IEnumerable<TextBox>' could be found

Answer 1

You need to either pass in an array, or use varargs by specifying as last parameter

params TextBox[] boxes

And then inside.. foreach(TextBox tb in boxes) { }

Answer 2

try this:

       public static class Texchanger
        {
            public static void Del_Multi_SepTexs(IEnumerable<TextBox> TXBS)
            {
                foreach (var item in TXBS)
                {
                    item.Text = item.Text.TrimStart('0').Trim();

                }

            }

        }

to call this method use:

var myTextBoxes = new List<TextBox>(){txt1,txt2}; Texchanger.Del_Multi_SepratTexs(myTextBoxes); 

or use like this with multiple parameters:

ublic static class Texchanger
    {
        public static void Del_Multi_SepTexs(params TextBox[] TXBS)
        {
            foreach (var item in TXBS)
            {
                item.Text = item.Text.TrimStart('0').Trim();

            }

        }

    }

For calling method use following:

Texchanger.Del_Multi_SepTexs(txt1,txt2);

Answer 3

That is exactly what the params keyword is for.

Remove_Zero_atFirst(textbox1,textbox2,textbox3, . . .);

public void Remove_Zero_atFirst(params TextBox[] textboxes)
{
    foreach (TextBox item in textboxes)
    {
        item.Text = item.Text.TrimStart('0').Trim();
    }
}