问题
I have exactly the same problem like this one
Everything is fine, but when i resize from West to East or North to South, the East/South side of the windows is kinda shaky, and it doesn't look very good.
As i can see this post is from long, long time ago, and still there is no valid answer in it, i was looking around, but couldn't find anything, anyone can tell me if this issue is fixed and where i can find the solution?
[xaml]:
<ControlTemplate>
<!-- MainGrid -->
<Grid x:Name="PART_MainGrid">
<!-- MainGrid.Rows -->
<Grid.RowDefinitions>
<RowDefinition Height="Auto" x:Name="PART_MainGridRow0" />
<RowDefinition Height="Auto" x:Name="PART_MainGridRow1" />
<RowDefinition Height="*" x:Name="PART_MainGridRow2" />
<RowDefinition Height="Auto" x:Name="PART_MainGridRow3" />
<RowDefinition Height="Auto" x:Name="PART_MainGridRow4" />
</Grid.RowDefinitions>
<!-- MainGrid.Columns -->
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" x:Name="PART_MainGridCol0"/>
<ColumnDefinition Width="Auto" x:Name="PART_MainGridCol1"/>
<ColumnDefinition Width="*" x:Name="PART_MainGridCol2"/>
<ColumnDefinition Width="Auto" x:Name="PART_MainGridCol3"/>
<ColumnDefinition Width="Auto" x:Name="PART_MainGridCol4"/>
</Grid.ColumnDefinitions>
<!-- MainGrid.ShadowBorders -->
<Border x:Name="PART_ShadowBorderWest" Grid.Row="1" Grid.Column="0" Grid.RowSpan="3"/>
<Border x:Name="PART_ShadowBorderNorth" Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="3"/>
<Border x:Name="PART_ShadowBorderEast" Grid.Row="1" Grid.Column="4" Grid.RowSpan="3"/>
<Border x:Name="PART_ShadowBorderSouth" Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="3"/>
<Border x:Name="PART_ShadowBorderNorthWest" Grid.Row="0" Grid.Column="0"/>
<Border x:Name="PART_ShadowBorderNorthEast" Grid.Row="0" Grid.Column="4"/>
<Border x:Name="PART_ShadowBorderSouthEast" Grid.Row="4" Grid.Column="4"/>
<Border x:Name="PART_ShadowBorderSouthWest" Grid.Row="4" Grid.Column="0"/>
<!-- MainGrid.Borders -->
<Border x:Name="PART_BorderWest" Grid.Row="2" Grid.Column="1"/>
<Border x:Name="PART_BorderNorth" Grid.Row="1" Grid.Column="2"/>
<Border x:Name="PART_BorderEast" Grid.Row="2" Grid.Column="3"/>
<Border x:Name="PART_BorderSouth" Grid.Row="3" Grid.Column="2"/>
<Border x:Name="PART_BorderNorthWest" Grid.Row="1" Grid.Column="1"/>
<Border x:Name="PART_BorderNorthEast" Grid.Row="1" Grid.Column="3"/>
<Border x:Name="PART_BorderSouthEast" Grid.Row="3" Grid.Column="3">
<Border x:Name="PART_BorderSouthWest" Grid.Row="3" Grid.Column="1"/>
</Grid>
</ControlTemplate>
[c#]:
// Global Variable
private Point cursorOffset;
#region All Resize Events and Functions
public void AddNorthWestResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNWSE;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = cursorLocation.X;
cursorOffset.Y = cursorLocation.Y;
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double nHorizontalChange = (cursorLocation.X - cursorOffset.X);
double nVerticalChange = (cursorLocation.Y - cursorOffset.Y);
if (Width - nHorizontalChange > MinWidth)
{
Left += nHorizontalChange;
Width -= nHorizontalChange;
}
if (Height - nVerticalChange > MinHeight)
{
Top += nVerticalChange;
Height -= nVerticalChange;
}
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddNorthResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNS;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.Y = cursorLocation.Y;
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double nHorizontalChange = (cursorLocation.X - cursorOffset.X);
double nVerticalChange = (cursorLocation.Y - cursorOffset.Y);
if (Height - nVerticalChange > MinHeight)
{
Top += nVerticalChange;
Height -= nVerticalChange;
}
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddNorthEastResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNESW;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = (Width - cursorLocation.X);
cursorOffset.Y = cursorLocation.Y;
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double nHorizontalChange = (cursorLocation.X - cursorOffset.X);
double pHorizontalChange = (cursorLocation.X + cursorOffset.X);
double nVerticalChange = (cursorLocation.Y - cursorOffset.Y);
double pVerticalChange = (cursorLocation.Y + cursorOffset.Y);
if (pHorizontalChange > MinWidth)
Width = pHorizontalChange;
if (Height - nVerticalChange > MinHeight)
{
Top += nVerticalChange;
Height -= nVerticalChange;
}
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddEastResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeWE;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = (Width - cursorLocation.X);
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double pHorizontalChange = (cursorLocation.X + cursorOffset.X);
if (pHorizontalChange > MinWidth)
Width = pHorizontalChange;
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddSouthEastResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNWSE;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = (Width - cursorLocation.X);
cursorOffset.Y = (Height - cursorLocation.Y);
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double pHorizontalChange = (cursorLocation.X + cursorOffset.X);
double pVerticalChange = (cursorLocation.Y + cursorOffset.Y);
if (pHorizontalChange > MinWidth)
Width = pHorizontalChange;
if (pVerticalChange > MinHeight)
Height = pVerticalChange;
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddSouthResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNS;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.Y = (Height - cursorLocation.Y);
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double pVerticalChange = (cursorLocation.Y + cursorOffset.Y);
if (pVerticalChange > MinHeight)
Height = pVerticalChange;
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddSouthWestResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeNESW;
else
element.Cursor = Cursors.Arrow;
};
element.MouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = cursorLocation.X;
cursorOffset.Y = (Height - cursorLocation.Y);
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double nHorizontalChange = (cursorLocation.X - cursorOffset.X);
double pVerticalChange = (cursorLocation.Y + cursorOffset.Y);
if (Width - nHorizontalChange > MinWidth)
{
Left += nHorizontalChange;
Width -= nHorizontalChange;
}
if (pVerticalChange > MinHeight)
Height = pVerticalChange;
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
public void AddWestResizeEvents(FrameworkElement element)
{
if (element == null)
return;
element.MouseEnter += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
element.Cursor = Cursors.SizeWE;
else
element.Cursor = Cursors.Arrow;
};
element.PreviewMouseLeftButtonDown += (sender, e) =>
{
if (WindowState != WindowState.Maximized && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
cursorOffset.X = cursorLocation.X;
element.CaptureMouse();
}
};
element.MouseMove += (sender, e) =>
{
if (WindowState != WindowState.Maximized && element.IsMouseCaptured && ResizeMode == ResizeMode.CanResize)
{
Point cursorLocation = e.GetPosition(this);
double nHorizontalChange = (cursorLocation.X - cursorOffset.X);
if (Width - nHorizontalChange > MinWidth)
{
Left += nHorizontalChange;
Width -= nHorizontalChange;
}
}
};
element.MouseLeftButtonUp += new MouseButtonEventHandler(ReleaseMouseCapture);
}
来源：https://stackoverflow.com/questions/21680401/wpf-custom-window-resize-issue