/// <summary>Show the actual dialog to allow the user to select a file.</summary>
/// <example>
/// <code source='examples\vbnet\ex_addbackgroundbitmap.vb' lang='vbnet'/>
/// <code source='examples\cs\ex_addbackgroundbitmap.cs' lang='cs'/>
/// <code source='examples\py\ex_addbackgroundbitmap.py' lang='py'/>
/// </example>
/// <returns>true if a file was selected. false if the dialog was canceled</returns>
/// <since>5.10</since>
public bool ShowOpenDialog()
{
var def_ext = DefaultExt;
var filename = FileName;
var filter = Filter;
var init_dir = InitialDirectory;
var title = Title;
var ptr_dialog = UnsafeNativeMethods.CRhinoUiFileDialog_NewOpen(def_ext, filename, filter, init_dir, title, MultiSelect);
var rc = UnsafeNativeMethods.CRhinoUiFileDialog_Show(ptr_dialog);
var ptr_filename = UnsafeNativeMethods.CRhinoUiFileDialog_Filename(ptr_dialog);
FileName = Marshal.PtrToStringUni(ptr_filename);
if (MultiSelect)
{
using (var array = new Runtime.InteropWrappers.ClassArrayString())
{
var ptr_array = array.NonConstPointer();
var count = UnsafeNativeMethods.CRhinoUiFileDialog_Filenames(ptr_dialog, ptr_array);
FileNames = count < 1 ? new string[0] : array.ToArray();
}
}
else
{
FileNames = new[] { FileName };
}
UnsafeNativeMethods.CRhinoUiFileDialog_Delete(ptr_dialog);
const int idok = 1;
return(rc == idok);
}
/// <summary>Show the actual dialog to allow the user to select a file.</summary>
/// <example>
/// <code source='examples\vbnet\ex_addbackgroundbitmap.vb' lang='vbnet'/>
/// <code source='examples\cs\ex_addbackgroundbitmap.cs' lang='cs'/>
/// <code source='examples\py\ex_addbackgroundbitmap.py' lang='py'/>
/// </example>
/// <returns>true if a file was selected. false if the dialog was canceled</returns>
/// <since>5.10</since>
public bool ShowOpenDialog()
{
var def_ext = DefaultExt;
var filename = FileName;
var filter = Filter;
var init_dir = InitialDirectory;
var title = Title;
var ptr_dialog = UnsafeNativeMethods.CRhinoUiFileDialog_NewOpen(def_ext, filename, filter, init_dir, title, MultiSelect);
var rc = UnsafeNativeMethods.CRhinoUiFileDialog_Show(ptr_dialog);
var ptr_filename = UnsafeNativeMethods.CRhinoUiFileDialog_Filename(ptr_dialog);
FileName = Marshal.PtrToStringUni(ptr_filename);
const int idok = 1;
if (MultiSelect)
{
// 1 February 2021 John Morse
// https://mcneel.myjetbrains.com/youtrack/issue/RH-62568
// Don't ask for file list when the dialog is canceled otherwise an ASSERT is triggered.
if (rc == idok)
{
using (var array = new Runtime.InteropWrappers.ClassArrayString())
{
var ptr_array = array.NonConstPointer();
var count = UnsafeNativeMethods.CRhinoUiFileDialog_Filenames(ptr_dialog, ptr_array);
FileNames = count < 1 ? new string[0] : array.ToArray();
}
}
else
{
FileNames = new string[0];
}
}
else
{
FileNames = new[] { FileName };
}
UnsafeNativeMethods.CRhinoUiFileDialog_Delete(ptr_dialog);
return(rc == idok);
}