convert color name in int

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I want to set datagridView row back color from datatable value.

VB

Dim strColor As String = DataGrigView1.CurrentRow.Cells("CalColor").Value.ToString()
grdJobTracking.CurrentRow.DefaultCellStyle.SelectionBackColor = System.Drawing.Color.FromArgb(strColor)

But here it throw an error message

Conversion from string "Red " to type 'Integer' is not valid.

how I can set the back color of grid.

Thanks!

Kuldeep Dwivedi

Posted 10-Nov-11 5:46am

Kuldeep03

Updated 10-Nov-11 5:54am

Mehdi Gholam

v2

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Sergey Alexandrovich Kryukov 10-Nov-11 11:55am

Wrong question! This is complete lack of elementary logic: if a compiler tells you: "expected type is A, and your supply B" ("conversion from 'B' to 'A' is not valid") and you are asking about converting from B to A. Isn't that simple?

You say, "conversion is invalid; so help me do this conversion". Wow!
--SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-11-10T06:07:00

Well, there is a factory static method System.Drawing.Color.FromName, please see, but it can only work if the string parameter is equal to the name of one of predefined colors. The colors are enumerated in the type System.Drawing.KnownColor. This will construct an instance of System.Drawing.Color structure.

See:
http://msdn.microsoft.com/en-us/library/system.drawing.color.aspx[^],
http://msdn.microsoft.com/en-us/library/system.drawing.knowncolor.aspx[^].

However, this is not you may really need. Please see my comment to the question.

Even though it works, this is unreliable: how can you guarantee valid color names all the time? What if software definitions change with time and your database data will survive? Is it all about storing the color in data base? It could be much better to store separate A, R, G, B or just R, G, B components of the color, or a color in one hexadecimal string which you would parse into A, R, G, B. This is how colors are represented in CSS (see); so you can use that format or something like that — see http://www.w3schools.com/cssref/css_colors.asp[^].

—SA