How to convert string to color?

Question

I need to convert string to color because color come dynamically as a string.

Error said :

Cannot implicity convert string to Xamarin.Form.Color

string BackgroundColor = (string)testData["Views"][index][name][i]["BackgroundColor"];

gridLayout.BackgroundColor = BackgroundColor;//Error

Answer 1

You can use Xamarin.Forms.ColorTypeConverter .

This method: ConvertFrom

Example from link:

var converter = new ColorTypeConverter ();
Assert.True (converter.CanConvertFrom (typeof(string)));
Assert.AreEqual (Color.Blue, converter.ConvertFrom ("Color.Blue"));
Assert.AreEqual (Color.Blue, converter.ConvertFrom ("Blue"));
Assert.AreEqual (Color.Blue, converter.ConvertFrom ("#0000ff"));
Assert.AreEqual (Color.Default, converter.ConvertFrom ("Color.Default"));
Assert.AreEqual (Color.Accent, converter.ConvertFrom ("Accent"));
var hotpink = Color.FromHex ("#FF69B4");
Color.Accent = hotpink;
Assert.AreEqual (Color.Accent, converter.ConvertFrom ("Accent"));

Answer 2

I suppose your string is a hex value of the color you want to apply. If so you must parse it as a color. The .setBackground method and BackgroundColor property accepts a color object.

To parse it, use the Color class which contains FromHex method.

Color.FromHex("#FFF");

Answer 3

You can convert string to color using ColorTypeConverter

var converter = new ColorTypeConverter ();
gridLayout.BackgroundColor = converter.ConvertFrom ("Color.Blue");
gridLayout.BackgroundColor = converter.ConvertFrom ("Blue");
gridLayout.BackgroundColor = converter.ConvertFrom ("#0000ff");

Hope this helps