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The class Channel doesn t reference an ArrayList for Item, but references a single instance of Item. The type Item contains a _next data member that references a chain of Item instances. Removing the ArrayList from Channel and replacing the list with a single reference could be considered problematic because a foreach loop can t be used. Using a foreach loop means to use the Iterator pattern. In .NET 2.0, the Iterator pattern can be implemented using classes that don t support lists. A solution to iterate the individual elements would be to use the yield keyword. The solution that is used doesn t iterate the elements, but lets each element take care of the next element. Consider the implementation of Item.MarkAsRead. Calling that method causes the referenced Item instance to be flagged as read, and if _next isn t null, then the _next element will be marked as read. The end result is a cascading effect that can be used in place of an iteration.

If the objects in the nodes are value types, they are automatically owned by the collection, and they will get destroyed when the containing.

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For example, if you wanted to create a text tag that sets the background and foreground colors as black and white respectively, you could use the following function This function returns the text tag that was created, although it will have already been added to the text buffer s tag table tag = gtk_text_buffer_create_tag (buffer, "colors", "background", "#000000", "foreground", "#FFFFFF", NULL); There are a large number of style properties available in GTK+ A full list of GtkTextTag styles is shown in Appendix C The table shows the name of each property, a short description of its use, and what type of value it accepts Once you have created a text tag and added it to a GtkTextBuffer s tag table, you can apply it to ranges of text In Listing 7-7, the tag is applied to selected text when a button is clicked.

If there is no selected text, the cursor position will be set to the style All text typed at that position would have the tag applied as well Tags are generally applied to text with gtk_text_buffer_apply_tag_by_name() The tag is applied to the text between the start and end iterators If you still have access to the GtkTextTag object, you can also apply a tag with gtk_text_buffer_apply_tag() void gtk_text_buffer_apply_tag_by_name (GtkTextBuffer *buffer, const gchar *tag_name, const GtkTextIter *start, const GtkTextIter *end);.

One of the incredible things about Open Source is that it works considering the context. Thousands of developers around the world who probably rarely talk to each other in person are solving problems in conjunction with other developers without a single game plan. Yet Open Source applications still work. Still, in some corporations, there ll be a group of developers who see each other every day who can t agree what to name a variable. It begs the question of how Open Source developers do something that others can t. The answer is rigorous coding practices that don t always involve writing easy-to-understand comments. Not all Open Source projects are successful or exhibit good programming practices. And not all corporations have developers who can t understand each other. My point is that it s expected that corporations develop good software and that Open Source not develop good software.

You can run ILDasm.exe to view the assembly attributes in an assembly s manifest. For example, if you create a default CLR console application project and view the assembly manifest in ILDasm, you should see something like this in the manifest: .assembly CLRConsole1 { .custom instance void [mscorlib]System.CLSCompliantAttribute::.ctor(bool) = ( 01 00 01 00 00 ) // --- The following custom attribute is added automatically, do not uncomment --// .custom instance void [mscorlib]System.Diagnostics.DebuggableAttribute:: // .ctor(bool, bool) = ( 01 00 01 01 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyTitleAttribute:: .ctor(string) = ( 01 00 0B 43 4C 52 43 6F 6E 73 6F 6C 65 31 00 00 ) // ...CLRConsole1.. .custom instance void [mscorlib]System.Reflection.AssemblyDescriptionAttribute:: .ctor(string) = ( 01 00 00 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyConfigurationAttribute:: .ctor(string) = ( 01 00 00 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyCompanyAttribute:: .ctor(string) = ( 01 00 04 4D 53 49 54 00 00 ) // ...MSIT.. .custom instance void [mscorlib]System.Reflection.AssemblyProductAttribute:: .ctor(string) = ( 01 00 0B 43 4C 52 43 6F 6E 73 6F 6C 65 31 00 00 ) // ...CLRConsole1.. .custom instance void [mscorlib]System.Reflection.AssemblyCopyrightAttribute:: .ctor(string) = ( 01 00 17 43 6F 70 79 72 69 67 68 74 20 28 63 29 // ...Copyright (c) 20 4D 53 49 54 20 32 30 30 38 00 00 ) // MSIT 2008.. .custom instance void [mscorlib]System.Reflection.AssemblyTrademarkAttribute:: .ctor(string) = ( 01 00 00 00 00 ) .custom instance void [mscorlib]System.Runtime.InteropServices.ComVisibleAttribute:: .ctor(bool) = ( 01 00 00 00 00 ) .permissionset reqmin = {[mscorlib]System.Security.Permissions.SecurityPermissionAttribute = {property bool 'UnmanagedCode' = bool(true)}} .hash algorithm 0x00008004 .ver 1:0:3046:31808 } As you can see, the various assembly attributes and their values are emitted in the manifest. For example, the AssemblyTitle attribute is set to the name of your project, in this case CLRConsole1.

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