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The DrawItem event is called whenever the item is drawn or when the item's state changes The DrawItemEventArgs object provides all the information you'll need to draw the item in question, including the index of the item being drawn, the bounds of the rectangle to draw in, the preferred font, the preferred color of the foreground and background, and the Graphics object to do the drawing on DrawItemEventArgs also provides the selection state so that you can draw selected items differently (as our example does) DrawItemEventArgs also gives you a couple of helper methods for drawing the background and the focus rectangle if necessary You'll usually use the latter to bracket your own custom drawing When you set DrawMode to OwnerDrawFixed, each item's size is set for you If you'd like to influence the size, too, you can set DrawMode to OwnerDrawVariable, and, in addition to doing the drawing in the DrawItem handler, you can specify the height in the MeasureItem handler: void InitializeComponent() { thislistBox2DrawMode = OwnerDrawVariable; } void listBox2_MeasureItem(object sender, MeasureItemEventArgs e) { // Make every even item twice as high if( eIndex % 2 == 0 ) eItemHeight *= 2; } The MeasureItem event provides an instance of the MessageItemEventArgs class, which gives you useful properties for getting and setting each item's height: class MeasureItemEventArgs : EventArgs { // Properties public Graphics Graphics { get; } public int Index { get; } public int ItemHeight { get; set; } public int ItemWidth { get; set; } } Figure 88 shows the effects of doubling the heights of the even items (as well as continuing to show the selection in italics)

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FIGURE 15-31 Removing a replica group member After it s deleted, if this server were critical in replication, as in this case, if you select the Connections tab for the replica group, a warning appears, informing you that the topology is not fully connected, and you can click a link to get more details, as shown in Figure 15-32 This is the same output that s displayed if the Verify Topology action was executed You have several options You can manually create a connection object to connect the server or run the New Topology action to let the wizard work out the connections Which option you choose should depend on the number of members in the replica group If you have fewer than 10 members, running the New Topology action is probably the best option: Just reselect the hubs and join the spokes to a speci c hub However, if you have many members, then recon guring all the hubs and spokes again takes a lot of effort, and it is easier to just manually create a connection object between the new member and an existing member

request Typhoeus has built-in retry logic to make this operation easy You simply pass in the number of retries as an option to the request constructor, like this:

You can add and remove the folders being replicated that are part of a replica group To add a new folder, select the replica group and then select Actions, New Replicated Folders The New Replicated Folders Wizard launches On initialization, you are prompted to indicate which server is the primary member, because again, on the rst replication, one server is considered primary, and all other members folder contents are synchronized to match the primary member s folder content The next page of the wizard asks for the folder to replicate, the folder on the primary member to replicate, and a name for the new replicated folder The new replicated folder is, by default, based on the folder name, although you can con gure a custom name, as shown in Figure 15-33 You can add multiple folders by repeating the Add process When all folders are added, click Next to continue con guring the other members of the replica group For each folder added, specify the folder to be used on each of the other replica members By default, the local path is disabled on all members Select each member in the wizard and click Edit to set a local path where the content is replicated Note that the option to create a new folder is available You do not have to replicate to all members of the replica group Just leave the local folder as <Not De ned> for any server that should not replicate the new folder

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Unlike the DrawItem event, the MeasureItem event is called only once for every item in the control, so things such as selection state can't be a factor when you decide how big to make the space for the item

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