C#

"{Binding Obj[TestEnum.Enum1]}"

"{Binding Obj[Enum1]}"

{Binding Obj[Enum1.DoSomething()]}

{Binding ObjDoSomething[Enum1]}
{Binding ObjDoSomethingElse[Enum1]}

LionAM wrote:

Additionally: Can I use an expression (for example an extension method

C#

TestEnum.Enum1.DoSomething()

public enum TestEnum: int
{
    Enum1 = 3,
    EnumZwei = 9
}

public static class MyExt
{
    public static TestEnum DoSomething(this TestEnum e)
    {
        return TestEnum.EnumZwei;
    }
}
// and then calling it, which looks plain weird;
class Program
{    
    public static void Main (string[] args)
    {    
        Console.WriteLine(TestEnum.Enum1.DoSomething());
    }
}

LionAM wrote:

I hoped that I could use something like

C#

<CheckBox IsChecked="{Binding Obj[TestEnum.Enum1]}" ...

with some helper object providing an index operator. The first works, the second does not...

public static class MyExt
{
    public static string Parse(this string SomeString)
    {
        foreach (var enumVal in Enum.GetValues(typeof(TestEnum)))
        {
            string enumValAsString = String.Format("{0}.{1}", 
                enumVal.GetType().Name, enumVal);
            int enumValAsInt = (int)enumVal;
            if (SomeString.Contains(enumValAsString))
            {
                SomeString = SomeString.Replace(enumValAsString, enumValAsInt.ToString());
            }
        }
        return SomeString;
    }
}
// and an example on using that;
class Program
{    
    public static void Main (string[] args)
    {    
        string s = "{Binding Obj[TestEnum.Enum1]}";
        Console.WriteLine(s);
        Console.WriteLine(s.Parse());
    }
}

Bastard Programmer from Hell
if you can't read my code, try converting it here[^]

Quote:

The FileContent property gets a Stream object that points to a file to upload. Use this property to access the contents of the file as bytes. For example, you can use the Stream object that is returned by the FileContent property to read the contents of the file as bytes and store them in a byte array. Alternatively, you can use the FileBytes property to retrieve all the bytes in the file.

/// <summary>
/// Save an upload into the database.
/// </summary>
/// <param name="fl">Control containing the download.</param>
/// <returns>Status as a string</returns>
private string SaveUpload(FileUpload fl)
    {
    if (fl.HasFile)
        {
        try
            {
            int version = 0;
            string filename = Path.GetFileName(fl.FileName);
            byte[] filedata = fl.FileBytes;
            string strCon = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["DownloadDatabase"].ConnectionString;
            using (SqlConnection con = new SqlConnection(strCon))
                {
                con.Open();
                // Check version - if the file exists in the DB already, then increase version number.
                using (SqlCommand ver = new SqlCommand("SELECT MAX(version) FROM dlContent WHERE fileName=@FN", con))
                    {
                    ver.Parameters.AddWithValue("@FN", filename);
                    object o = ver.ExecuteScalar();
                    if (o != null && o != System.DBNull.Value)
                        {
                        // Exists already.
                        version = (int) o + 1;
                        }
                    }
                // Stick file into database.
                using (SqlCommand ins = new SqlCommand("INSERT INTO dlContent (iD, fileName, description, dataContent, version, uploadedOn) " +
                                                       "VALUES (@ID, @FN, @DS, @DT, @VS, @UD)", con))
                    {
                    ins.Parameters.AddWithValue("@ID", Guid.NewGuid());
                    ins.Parameters.AddWithValue("@FN", filename);
                    ins.Parameters.AddWithValue("@DS", "");
                    ins.Parameters.AddWithValue("@DT", filedata);
                    ins.Parameters.AddWithValue("@VS", version);
                    ins.Parameters.AddWithValue("@UD", DateTime.Now);
                    ins.ExecuteNonQuery();
                    }
                }
            return string.Format("{0} uploaded, version = {1}", filename, version);
            }
        catch (Exception ex)
            {
            return "The file could not be uploaded. The following error occured: " + ex.Message;
            }
        }
    return "Please select a file.";
    }