CODEWITHSUNDEEP
c#
mathgenius
mathgenius

Reputation: 513

'An object reference is required' error on a missing method

I have this code:

using System.Drawing;

int offset;
string longest = "";
Font F = new Font("Microsoft Sans Serif", 8, FontStyle.Regular);
list.Aggregate("", (max, cur) => max.Length > cur.Length ? longest = max : longest = cur);
offset = Graphics.MeasureString(longest, F).Width;

And I get an

"An object referece is required for the non-static [...]"

error on the Graphics.MeasureString method, but using:

offset = new Graphics.MeasureString(longest, F).Width;

Raises a "The type name MeasureString does not exist in the type Graphics". The weird thing is, the compiler does find the MeasureString method in the Graphics class (or whatever it is) when the new word is abscent.

So my problem is that when the compiler finds the method it is static and when initialising a new instance of it - it cannot be found.

Upvotes: 3

Views: 387

Answers (1)

CoolBots
CoolBots

Reputation: 4879

You need to create an instance of the Graphics object. In WinForms (this looks like WinForms code):

var graphics = this.CreateGraphics();
...
offset = graphics.MeasureString(longest, F).Width;

Upvotes: 5

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