protected override void Execute(CodeActivityContext context)
{
var isSaveAs = IsSaveAs.Get(context);
var initialDirectory = InitialDirectory.Get(context);
var title = Title.Get(context);
var defaultExt = DefaultExt.Get(context);
var filter = Filter.Get(context);
var filterIndex = FilterIndex.Get(context);
var checkFileExists = CheckFileExists.Get(context);
var checkPathExists = CheckPathExists.Get(context);
var multiselect = Multiselect.Get(context);
System.Windows.Forms.FileDialog dialog;
if (isSaveAs)
{
dialog = new System.Windows.Forms.SaveFileDialog();
}
else
{
dialog = new System.Windows.Forms.OpenFileDialog();
((System.Windows.Forms.OpenFileDialog)dialog).Multiselect = multiselect;
}
if (!string.IsNullOrEmpty(title))
{
dialog.Title = title;
}
if (!string.IsNullOrEmpty(defaultExt))
{
dialog.DefaultExt = defaultExt;
}
if (!string.IsNullOrEmpty(filter))
{
dialog.Filter = filter;
dialog.FilterIndex = filterIndex;
}
dialog.CheckFileExists = checkFileExists;
dialog.CheckPathExists = checkPathExists;
System.Windows.Forms.DialogResult result = System.Windows.Forms.DialogResult.Cancel;
GenericTools.RunUI(() =>
{
result = dialog.ShowDialog();
});
if (result != System.Windows.Forms.DialogResult.OK)
{
context.SetValue(FileName, null);
context.SetValue(FileNames, null);
return;
}
context.SetValue(FileName, dialog.FileName);
context.SetValue(FileNames, dialog.FileNames);
}
/// <summary>Follows path selected by user</summary>
/// <param name="fileName">Path to be followed</param>
/// <param name="followLinks">True to follow links in *.lnk files</param>
/// <returns>True when <paramref name="fileName"/> represents a file that can be returned from dialog; false otherwise (invalid path, directory navigation, filter change)</returns>
private bool FollowPath(string fileName, bool followLinks)
{
//Empty path - do nothing
if (string.IsNullOrEmpty(fileName))
{
return(false);
}
//Current directory
else if (fileName == ".")
{
return(false);
}
//Up one level
else if (fileName == "..")
{
if (currentDirectory == "\\")
{
return(false);
}
var parts = currentDirectory.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar).TrimEnd(Path.DirectorySeparatorChar).Split(Path.DirectorySeparatorChar);
try
{
string newPath = string.Join(Path.DirectorySeparatorChar.ToString(), parts, 0, parts.Length - 1);
LoadFolder(string.IsNullOrEmpty(newPath) ? "\\" : newPath, SelectedFilter);
}
catch
{
MessageBox.Show(Properties.Resources.err_NavigatingToParentFolder, Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
return(false);
}
//Path contains relative sgments - normalize it and combien with current
else if (fileName.StartsWith("." + Path.DirectorySeparatorChar) ||
fileName.EndsWith(Path.DirectorySeparatorChar + ".") ||
fileName.StartsWith(".." + Path.DirectorySeparatorChar) ||
fileName.EndsWith(Path.DirectorySeparatorChar + "..") ||
fileName.IndexOf(Path.DirectorySeparatorChar + ".." + Path.DirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.DirectorySeparatorChar + "." + Path.DirectorySeparatorChar) >= 0 ||
fileName.StartsWith("." + Path.AltDirectorySeparatorChar) ||
fileName.EndsWith(Path.AltDirectorySeparatorChar + ".") ||
fileName.StartsWith(".." + Path.AltDirectorySeparatorChar) ||
fileName.EndsWith(Path.AltDirectorySeparatorChar + "..") ||
fileName.IndexOf(Path.AltDirectorySeparatorChar + ".." + Path.AltDirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.AltDirectorySeparatorChar + "." + Path.AltDirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.DirectorySeparatorChar + ".." + Path.AltDirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.DirectorySeparatorChar + "." + Path.AltDirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.AltDirectorySeparatorChar + ".." + Path.DirectorySeparatorChar) >= 0 ||
fileName.IndexOf(Path.AltDirectorySeparatorChar + "." + Path.DirectorySeparatorChar) >= 0)
{
var newPath = fileName.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar).TrimEnd(Path.DirectorySeparatorChar);
List <string> comb = new List <string>(currentDirectory.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar).TrimEnd(Path.DirectorySeparatorChar).Split(Path.DirectorySeparatorChar));
foreach (var seg in newPath.Split(Path.DirectorySeparatorChar))
{
if (seg == ".")
{
continue;
}
else if (seg == ".." && comb.Count > 0)
{
comb.RemoveAt(comb.Count - 1);
}
else
{
comb.Add(seg);
}
}
return(FollowPath(string.Join(Path.DirectorySeparatorChar.ToString(), comb.ToArray()), followLinks));
}
//Wildcards + directories (not supported)
else if ((fileName.IndexOf('*') >= 0 || fileName.IndexOf('?') >= 0) && (fileName.IndexOf(Path.DirectorySeparatorChar) >= 0 || fileName.IndexOf(Path.AltDirectorySeparatorChar) >= 0))
{
MessageBox.Show(Properties.Resources.err_CombineWildcardsAndFolders, Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
return(false);
}
//Wildcards - set filter
else if (fileName.IndexOf('*') >= 0 || fileName.IndexOf('?') >= 0)
{
try
{
LoadFolder(currentDirectory, fileName);
}
catch
{
MessageBox.Show(string.Format(Properties.Resources.err_ApplyingFiler, fileName), Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
return(false);
}
//Relative or absolute path
else if (fileName.IndexOf(Path.DirectorySeparatorChar) >= 0 || fileName.IndexOf(Path.AltDirectorySeparatorChar) >= 0)
{
try
{
if (!Path.IsPathRooted(fileName))
{
fileName = Path.Combine(currentDirectory, fileName);
}
if (File.Exists(fileName))
{
return(AcceptFilename(fileName, followLinks));
}
else if (AddExtension && !string.IsNullOrEmpty(DefaultExt) &&
Path.GetExtension(fileName) == "" && File.Exists(fileName + (DefaultExt.StartsWith(".") ? "" : ".") + DefaultExt))
{
fileName = fileName + (DefaultExt.StartsWith(".") ? "" : ".") + DefaultExt;
return(AcceptFilename(fileName, followLinks));
}
LoadFolder(fileName, SelectedFilter);
}
catch
{
MessageBox.Show(string.Format(Properties.Resources.err_LoadDirectory, fileName), Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
return(false);
}
//File or directory name
else
{
try
{
if (File.Exists(Path.Combine(currentDirectory, fileName)))
{
fileName = Path.Combine(currentDirectory, fileName);
return(AcceptFilename(fileName, followLinks));
}
else if (Directory.Exists(Path.Combine(currentDirectory, fileName)))
{
fileName = Path.Combine(currentDirectory, fileName);
LoadFolder(fileName, SelectedFilter);
}
else if (AddExtension && !string.IsNullOrEmpty(DefaultExt) &&
File.Exists(fileName = Path.Combine(currentDirectory, fileName + (DefaultExt.StartsWith(".") ? "" : ".") + DefaultExt)))
{
return(AcceptFilename(fileName, followLinks));
}
else
{
MessageBox.Show(string.Format(Properties.Resources.err_FileNotFound, fileName), Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
}
catch
{
MessageBox.Show(string.Format(Properties.Resources.err_InvalidFileName, fileName), Properties.Resources.FileDialogTitle, MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
return(false);
}
}
static void Main(string[] args)
{
ReverseWord.AA();
//var sum = TwoSum.Sum(new int[] { 1, 2, 7,8, 5 }, 7);
//Console.WriteLine("result={0},{1}",sum[0],sum[1]);
//AutoMapperExt.Print();
#region async/await
//AsyncAwaitC.Print();
//AsyncAwaitB.Print();
//AsyncAwaitA.Print();
#endregion
#region stream
//StreamExt5.Print();
//StreamExt4.Print();
//StreamExt3.Print();
//StreamExt2.Print();
//StreamExt.Print();
//ReflectionPractice.Print();
#endregion
#region 2
//Dictionary_Condictionary.Print();
//HashTable_Dictionary_ConcurrentDictionary.Print();
//ThreadExtE.Print();
//ThreadExtC.Print();
//ThreadExtB.Print();
//StringEmptyDBNull.Print();
//ThreadExtA.Print();
#endregion
#region before
//Console.WriteLine("main thread start");
//OneDto.AsynchronyWithTPL();
//Console.WriteLine("main thread end ");
//t.Wait();
//t = OneDto.AsynchronyWithAwait();
//t.Wait();
//TwoDto.DelayExample();
//TwoDto.DelayExampleTwo();
//TwoDto.ThreadSleepEg();
//TwoDto.MaxThreadpoolEg();
//task的基本操作
//OneDto.TaskBasicOperate();
//TaskBasicOperate.TaskBasic();
//OneDto.TaskBasicOperateTwo();
//OneDto.TaskBasicOperateThree();
//OneDto.ThreadPoolEg();
//TaskBasicOperate.InsertSort();
//ThreeTaskOperate.ContinueWithEg();
//new ValueRefType().Test();
//Console.WriteLine("{0} ", Marshal.SizeOf(new TypeSize()));
//DelegateT dele = new DelegateT();
//ConstReadOnly read = new ConstReadOnly();
//read.ConstReadOnlyTest();
//ClassInitOrder classOrder = new ClassInitOrder();
//ClassB classB = new ClassB();
//classB.print();
//AutoProperty autoP = new AutoProperty();
//autoP.printHandField();
//RefOut ro = new RefOut();
//ro.TestValueRef();
//ro.TestObjRef();
//ro.TestValueOut();
//As_Is asIs = new As_Is();
//asIs.ShowAs();
//ConstReadOnly ro = new ConstReadOnly();
//ro.Print();
//ConstReadOnly roOne = new ConstReadOnly();
//roOne.Print();
//StringEmpty se = new StringEmpty();
//se.Print();
//StringBuilderString sb = new StringBuilderString();
//sb.Print();
//StringEmpty se = new StringEmpty();
//se.TypeSize();
//AnonymousDelegate an = new AnonymousDelegate();
//an.Print();
//EqualsGetHashCode.Print();
//PointerType.Print();
DefaultExt.Print();
//IEnumeratorExt.Print();
//ExpressionTree.Print();
#endregion
}
protected override void Execute(CodeActivityContext context)
{
var isSaveAs = IsSaveAs.Get(context);
var initialDirectory = InitialDirectory.Get(context);
var title = Title.Get(context);
var defaultExt = DefaultExt.Get(context);
var filter = Filter.Get(context);
var filterIndex = FilterIndex.Get(context);
var checkFileExists = CheckFileExists.Get(context);
var checkPathExists = CheckPathExists.Get(context);
var multiselect = Multiselect.Get(context);
System.Windows.Forms.FileDialog dialog;
if (isSaveAs)
{
dialog = new System.Windows.Forms.SaveFileDialog();
}
else
{
dialog = new System.Windows.Forms.OpenFileDialog();
((System.Windows.Forms.OpenFileDialog)dialog).Multiselect = multiselect;
}
if (!string.IsNullOrEmpty(title))
{
dialog.Title = title;
}
if (!string.IsNullOrEmpty(defaultExt))
{
dialog.DefaultExt = defaultExt;
}
if (!string.IsNullOrEmpty(filter))
{
dialog.Filter = filter;
dialog.FilterIndex = filterIndex;
}
try
{
if (!string.IsNullOrEmpty(initialDirectory) && !initialDirectory.Contains("\\"))
{
Enum.TryParse(initialDirectory, out Environment.SpecialFolder specialfolder);
initialDirectory = Environment.GetFolderPath(specialfolder);
}
}
catch (Exception)
{
throw;
}
if (!string.IsNullOrEmpty(initialDirectory))
{
dialog.InitialDirectory = initialDirectory;
}
dialog.CheckFileExists = checkFileExists;
dialog.CheckPathExists = checkPathExists;
System.Windows.Forms.DialogResult result = System.Windows.Forms.DialogResult.Cancel;
GenericTools.RunUI(() =>
{
result = dialog.ShowDialog();
});
if (result != System.Windows.Forms.DialogResult.OK)
{
context.SetValue(FileName, null);
context.SetValue(FileNames, null);
return;
}
context.SetValue(FileName, dialog.FileName);
context.SetValue(FileNames, dialog.FileNames);
}
