在 c# 中是否有与 Delphi 的“with”命令等价的命令？

Question

I was wondering if there is a command in C# which I can use like with command in Delphi?

// like this :
with(textbox1)
{
   .text="some text as text of text box";
   .tag=1231;
}

// in Delphi

with edit1 do 
 begin
   text="some text as text of edit1";
   tag=1231;
 end;

Answer 1

Not for already created instances.

However, when you create a new instance you can do:

var textbox1 = 
   new Textbox
   {
       Text = "some text as text of text box",
       Tag = 1231
   };

Answer 2

No, that does not exist in C#.

Answer 3

No, it does not exist in C#, however, when creating an object, you can do like this:

var textbox1 = new TextBox {
    Text = "some text as text of text box";
    Tag = 1231
};

Answer 4

It's been 11 years.

C# has added the records feature. You can use the with keyword with c# records.

Since records are immutable it instantiates and returns a new object when you use with .

public record FullName(string FirstName
                     , string LastName);

var name = new FullName("Jack", "Beyer");

var newName = name with { FisrtName = "Mohsen" };

Answer 5

No but depending on what you are trying to do, the following would work:

TextBox t = textbox1;

t.text="some text as text of text box";
t.tag=1231;

Answer 6

There's something called using , but compared to Delphi/Pascal it's works more like try/finally.