CODEWITHSUNDEEP
c#arrays
Vaheed01
Vaheed01

Reputation: 1067

" ; expected " error while setting array value

string[] aryProp = { "Name", button.Name };
//ListViewItem lvi = new ListViewItem(aryProp);
aryProp={ "Width" , button.Width.ToString() };

" ; expected " (line 3) Why am I getting this error ?

EDIT: @jon , @David , @Grant : Thanks for the help ,But why should I use different syntaxes ? Isn't it kinda illogical ?

Upvotes: 0

Views: 989

Answers (2)

stile17
stile17

Reputation: 170

You are using 1-dimensional array, in your case I suspect you should use 2-dimensional or Dictionary like that:

  var aryProp = new Dictionary<string, string>();
  aryProp.Add("Name", button.Name);
  aryProp.Add("Width", button.Width.ToString());

  foreach (var element in aryProp)
  {
    Console.WriteLine(element.Key + " " + element.Value);
  }

Upvotes: 3

Jon Skeet
Jon Skeet

Reputation: 1502286

Why am I getting this error ?

Because while your syntax is valid for initialization in a variable declaration, it's not valid for a plain assignment. You can use:

aryProp = new[] { "Width" , button.Width.ToString() };

Or:

aryProp = new string[] { "Width" , button.Width.ToString() };

In specification terms, { ... } is an array-initializer whereas new string[] { ... } is an array-creation-expression (which includes an array-initializer, of course). An array-initializer isn't a separate expression you can use as a value; it can only be used in an array-creation-expression, a local-variable-initializer or a variable-initializer.

In non-specification terms: yes, it looks a bit inconsistent, but I suspect there would be significant issues allowing aryProp = { ... } everywhere, but it's nice to allow it for declarations...

Upvotes: 6

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