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Get multiple http header values (Request.Headers.TryGetValues)

In my ASP.NET Web API I need to get up to 10 different http header values. I found this example that shows how to get one single http header value:

IEnumerable<string> values = new List<string>();
Request.Headers.TryGetValues("Test1", out values);
var test1 = values.First();

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If I also need to get header values "Test2", "Test3", "Test4", "Test5" and so on, how can this be done? I guess there is a bad solution to repeat the code above 10 times...

ASKER CERTIFIED SOLUTION

kaufmed

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milindsaraswala

You can do something like this

WebHeaderCollection header = request.Headers;
for (int i = 0; i < header.Count; i++)
Console.WriteLine("   {0} : {1}",header.GetKey(i), header[i]);

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webressurs

ASKER

This line:
WebHeaderCollection header = request.Headers;

Gives this error:
Cannot implicitly convert type 'System.Net.Http.Headers.HttpRequestHeaders' to 'System.Net.WebHeaderCollection'

I got a solution that works fine, here is the code:

private string GetHeader(string key)
{
var header = "";
if (Request.Headers.Contains(key))
{
IEnumerable<string> values = new List<string>();
Request.Headers.TryGetValues(key, out values);
if (!string.IsNullOrEmpty(values.First())) header = values.First();
}
return header;
}

public IEnumerable<API.Models.UserCard> GetUsers()
{
var headerTest1 = GetHeader("Test1");
var headerTest2 = GetHeader("Test2");
var headerTest3 = GetHeader("Test3");

var Test1 = headerTest1 != "" ? int.Parse(headerTest1) : 0;
var Test2 = headerTest1 != "" ? int.Parse(headerTest2) : 0;
var Test3 = headerTest1 != "" ? int.Parse(headerTest3) : 0;
.
.
.
}

My code is almost identical to kaufmed example above, hope this is a good solution :)