将System.Drawing.Color转换为RGB和Hex值(Convert System.Drawing.Color to RGB and Hex Value)

使用C＃我试图开发以下两个。 我的做法可能会有一些问题，需要你的建议。 另外，我不知道是否有任何现有的方法做同样的事情。

private static String HexConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } catch (Exception ex) { //doing nothing } return rtn; } private static String RGBConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; } catch (Exception ex) { //doing nothing } return rtn; }

谢谢。

Using C# I was trying to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.

private static String HexConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } catch (Exception ex) { //doing nothing } return rtn; } private static String RGBConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; } catch (Exception ex) { //doing nothing } return rtn; }

Thanks.

最满意答案

我没有看到这里的问题。 代码对我来说很好

我唯一可以想到的是try / catch块是冗余的 - Color是一个结构体，R，G和B是字节，所以c不能为空， cRToString() ， cGToString()和cBToString()不能真的失败（唯一的方法，我可以看到他们失败是一个NullReferenceException ，并且他们都不能真的为空）。

您可以使用以下方法清理整个事情：

private static String HexConverter(System.Drawing.Color c) { return "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } private static String RGBConverter(System.Drawing.Color c) { return "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; }

I'm failing to see the problem here. The code looks good to me.

The only thing I can think of is that the try/catch blocks are redundant -- Color is a struct and R, G, and B are bytes, so c can't be null and c.R.ToString(), c.G.ToString(), and c.B.ToString() can't actually fail (the only way I can see them failing is with a NullReferenceException, and none of them can actually be null).

You could clean the whole thing up using the following:

private static String HexConverter(System.Drawing.Color c) { return "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } private static String RGBConverter(System.Drawing.Color c) { return "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; }将System.Drawing.Color转换为RGB和Hex值(Convert System.Drawing.Color to RGB and Hex Value)

使用C＃我试图开发以下两个。 我的做法可能会有一些问题，需要你的建议。 另外，我不知道是否有任何现有的方法做同样的事情。

private static String HexConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } catch (Exception ex) { //doing nothing } return rtn; } private static String RGBConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; } catch (Exception ex) { //doing nothing } return rtn; }

谢谢。

Using C# I was trying to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.

private static String HexConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } catch (Exception ex) { //doing nothing } return rtn; } private static String RGBConverter(System.Drawing.Color c) { String rtn = String.Empty; try { rtn = "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; } catch (Exception ex) { //doing nothing } return rtn; }

Thanks.

最满意答案

我没有看到这里的问题。 代码对我来说很好

我唯一可以想到的是try / catch块是冗余的 - Color是一个结构体，R，G和B是字节，所以c不能为空， cRToString() ， cGToString()和cBToString()不能真的失败（唯一的方法，我可以看到他们失败是一个NullReferenceException ，并且他们都不能真的为空）。

您可以使用以下方法清理整个事情：

private static String HexConverter(System.Drawing.Color c) { return "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } private static String RGBConverter(System.Drawing.Color c) { return "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; }

I'm failing to see the problem here. The code looks good to me.

The only thing I can think of is that the try/catch blocks are redundant -- Color is a struct and R, G, and B are bytes, so c can't be null and c.R.ToString(), c.G.ToString(), and c.B.ToString() can't actually fail (the only way I can see them failing is with a NullReferenceException, and none of them can actually be null).

You could clean the whole thing up using the following:

private static String HexConverter(System.Drawing.Color c) { return "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"); } private static String RGBConverter(System.Drawing.Color c) { return "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")"; }