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Tighter protection around unpredictable ApplicationSettings properties

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This commit is contained in:
Justin Aquadro 2013-01-27 19:42:48 -05:00
parent 1596d3365d
commit 24c349ce50
1 changed files with 25 additions and 2 deletions
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27
Windows/MainForm.cs
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@ -172,7 +172,7 @@ namespace NBTExplorer.Windows
DirectoryDataNode node = new DirectoryDataNode(path); DirectoryDataNode node = new DirectoryDataNode(path);
_nodeTree.Nodes.Add(CreateUnexpandedNode(node)); _nodeTree.Nodes.Add(CreateUnexpandedNode(node));
AddPathToHistory(Settings.Default.RecentDirectories, path); AddPathToHistory(GetRecentDirectories(), path);
} }
else if (File.Exists(path)) { else if (File.Exists(path)) {
DataNode node = null; DataNode node = null;
@ -183,7 +183,7 @@ namespace NBTExplorer.Windows
if (node != null) { if (node != null) {
_nodeTree.Nodes.Add(CreateUnexpandedNode(node)); _nodeTree.Nodes.Add(CreateUnexpandedNode(node));
AddPathToHistory(Settings.Default.RecentFiles, path); AddPathToHistory(GetRecentFiles(), path);
} }
} }
} }
@ -229,6 +229,26 @@ namespace NBTExplorer.Windows
UpdateUI(); UpdateUI();
} }
private StringCollection GetRecentFiles ()
{
try {
return Settings.Default.RecentFiles;
}
catch {
return null;
}
}
private StringCollection GetRecentDirectories ()
{
try {
return Settings.Default.RecentDirectories;
}
catch {
return null;
}
}
private TreeNode CreateUnexpandedNode (DataNode node) private TreeNode CreateUnexpandedNode (DataNode node)
{ {
TreeNode frontNode = new TreeNode(node.NodeDisplay); TreeNode frontNode = new TreeNode(node.NodeDisplay);
@ -1125,6 +1145,9 @@ namespace NBTExplorer.Windows
private void AddPathToHistory (StringCollection list, string entry) private void AddPathToHistory (StringCollection list, string entry)
{ {
if (list == null)
return;
foreach (string item in list) { foreach (string item in list) {
if (item == entry) { if (item == entry) {
list.Remove(item); list.Remove(item);