Equivalent C# 2.0 code
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I cannot figure out how to translate the following line of code:
int maxMagicBytesLength = imageFormatDecoders.Keys.OrderByDescending(x => x.Length).First().Length;
into equivalent .Net 2.0 (C# 2.0) code. Here's the declaration of the imageFormatDecoders dictionary:
private static Dictionary<byte[], Func<BinaryReader, Size>> imageFormatDecoders = new Dictionary<byte[], Func<BinaryReader, Size>>()
{
{ new byte[] { 0x42, 0x4D }, DecodeBitmap },
{ new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 }, DecodeGif },
{ new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
{ new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }, DecodePng },
{ new byte[] { 0xff, 0xd8 }, DecodeJfif },
};As my rest of the application is .net 2.0. I just can't figure out the use of the OrderByDescending() method. I've not worked in C# 3.0 or later versions. Please help me. Thanks in advance.
Excuse me for buttin' in, but I'm interrupt driven.
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I cannot figure out how to translate the following line of code:
int maxMagicBytesLength = imageFormatDecoders.Keys.OrderByDescending(x => x.Length).First().Length;
into equivalent .Net 2.0 (C# 2.0) code. Here's the declaration of the imageFormatDecoders dictionary:
private static Dictionary<byte[], Func<BinaryReader, Size>> imageFormatDecoders = new Dictionary<byte[], Func<BinaryReader, Size>>()
{
{ new byte[] { 0x42, 0x4D }, DecodeBitmap },
{ new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 }, DecodeGif },
{ new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
{ new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }, DecodePng },
{ new byte[] { 0xff, 0xd8 }, DecodeJfif },
};As my rest of the application is .net 2.0. I just can't figure out the use of the OrderByDescending() method. I've not worked in C# 3.0 or later versions. Please help me. Thanks in advance.
Excuse me for buttin' in, but I'm interrupt driven.
Ankit Rajpoot wrote:
OrderByDescending(x => x.Length).First().Length;
This code orders the collection from highest to lowest, based on the length, then grabs the first object. You could just iterate over the objects, and store the highest length.
Christian Graus Driven to the arms of OSX by Vista. Please read this[^] if you don't like the answer I gave to your question. "! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.