在单元格下方显示WinForm [英] Show WinForm below a cell
问题描述
如何显示在活动单元正下方的VB.NET中创建的Winform?
How can I show I winform that I create in VB.NET just below the active cell?
我不知道该如何解决.我发现了以下有希望的解决方案: Excel插件:单元格绝对位置
I have no idea how to solve this. I found the following promising solutions: Excel addin: Cell absolute position
-公认的解决方案似乎太复杂而无法可靠地工作.我在第一行出现了错误(专用声明函数GetDC Lib"user32"(ByVal hwnd一样长)一样长)
-The accepted solution seems too complicated to work reliably. I got an error on the first row (Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long)
-第二种解决方案看起来很有希望，但是它没有为我的Windows窗体提供合适的位置.
-The second solution looked promising, but it didn't give me the right positions for my windows form.
对第二个建议的解决方案的以下调整不会产生任何错误，但不会将Windows窗体放置在正确的位置:
The following adaptations of the second proposed solution does not create any errors but does not put the windows form in the correct position:
Public Sub GetScreenPositionFromCell(cell As Excel.Range, excel As Excel.Application)
Dim x As Double
Dim y As Double
If Not excel.ActiveWindow Is Nothing Then
x = excel.ActiveWindow.PointsToScreenPixelsX(cell.Left)
y = excel.ActiveWindow.PointsToScreenPixelsY(cell.Top)
End If
Me.Left = x
Me.Top = y
Me.Show()
Me.TopMost = True
End Sub
编辑:@Loating，这是我使用您的代码的方式.太好了，我很高兴您能抽出宝贵的时间为我提供解决方案.x坐标似乎起作用，而x坐标略有偏离，或多或少取决于缩放级别.
EDIT: @Loating, here is how I have used your code. It's great and I am very happy that you are taking your time to help me with a solution. The x-coordinates seems to work while the x-coordinates are a bit off and more or less off depending on the zoom level.
Public Sub ShowMeBelowActiveCell()
Dim ExcelApp As Excel.Application = CType(AddinExpress.MSO.ADXAddinModule.CurrentInstance, AddinModule).ExcelApp
Dim excelWindow = ExcelApp.ActiveWindow
Dim cell = ExcelApp.ActiveCell
Dim zoomFactor As Double = excelWindow.Zoom / 100
Dim ws = cell.Worksheet
' PointsToScreenPixels returns different values if the scroll is not currently 1
' Temporarily set the scroll back to 1 so that PointsToScreenPixels returns a
' value we know how to handle.
Dim origScrollCol = excelWindow.ScrollColumn
Dim origScrollRow = excelWindow.ScrollRow
excelWindow.ScrollColumn = 1
excelWindow.ScrollRow = 1
' (x,y) are screen coordinates for the top left corner of the top left cell
Dim x As Integer = excelWindow.PointsToScreenPixelsX(0)
' e.g. window.x + row header width
Dim y As Integer = excelWindow.PointsToScreenPixelsY(0)
' e.g. window.y + ribbon height + column headers height
Dim dpiX As Single = 0
Dim dpiY As Single = 0
Using g = Drawing.Graphics.FromHwnd(IntPtr.Zero)
dpiX = g.DpiX
dpiY = g.DpiY
End Using
' Note: Each column width / row height has to be calculated individually.
' Before, tried to use this approach:
' var r2 = (Microsoft.Office.Interop.Excel.Range) cell.Worksheet.Cells[origScrollRow, origScrollCol];
' double dw = cell.Left - r2.Left;
' double dh = cell.Top - r2.Top;
' However, that only works when the zoom factor is a whole number.
' A fractional zoom (e.g. 1.27) causes each individual row or column to round to the closest whole number,
' which means having to loop through.
For i As Integer = origScrollCol To cell.Column - 1
Dim col = DirectCast(ws.Cells(cell.Row, i), Microsoft.Office.Interop.Excel.Range)
Dim ww As Double = col.Width * dpiX / 72
Dim newW As Double = zoomFactor * ww
x += CInt(Math.Round(newW))
Next
For i As Integer = origScrollRow To cell.Row - 1
Dim row = DirectCast(ws.Cells(i, cell.Column), Microsoft.Office.Interop.Excel.Range)
Dim hh As Double = row.Height * dpiY / 72
Dim newH As Double = zoomFactor * hh
y += CInt(Math.Round(newH))
Next
excelWindow.ScrollColumn = origScrollCol
excelWindow.ScrollRow = origScrollRow
Me.StartPosition = Windows.Forms.FormStartPosition.Manual
Me.Location = New Drawing.Point(x, y)
Me.Show()
End Sub
End Class
推荐答案
当 ScrollColumn 和 ScrollRow 均为1时，则 PointsToScreenPixelsX/Y >似乎返回屏幕坐标中左上角可见单元格的左上角点.使用此功能，可以在考虑缩放设置的情况下计算到活动单元的偏移宽度和高度.
When the ScrollColumn and ScrollRow are both 1, then PointsToScreenPixelsX/Y seems to return the top left point of the top left visible cell in screen coordinates. Using this, the offset width and height to the active cell is calculated, taking into consideration the zoom setting.
var excelApp = Globals.ThisAddIn.Application;
var excelWindow = excelApp.ActiveWindow;
var cell = excelApp.ActiveCell;
double zoomFactor = excelWindow.Zoom / 100;
var ws = cell.Worksheet;
var ap = excelWindow.ActivePane; // might be split panes
var origScrollCol = ap.ScrollColumn;
var origScrollRow = ap.ScrollRow;
excelApp.ScreenUpdating = false;
// when FreezePanes == true, ap.ScrollColumn/Row will only reset
// as much as the location of the frozen splitter
ap.ScrollColumn = 1;
ap.ScrollRow = 1;
// PointsToScreenPixels returns different values if the scroll is not currently 1
// Temporarily set the scroll back to 1 so that PointsToScreenPixels returns a
// value we know how to handle.
// (x,y) are screen coordinates for the top left corner of the top left cell
int x = ap.PointsToScreenPixelsX(0); // e.g. window.x + row header width
int y = ap.PointsToScreenPixelsY(0); // e.g. window.y + ribbon height + column headers height
float dpiX = 0;
float dpiY = 0;
using (var g = Graphics.FromHwnd(IntPtr.Zero)) {
dpiX = g.DpiX;
dpiY = g.DpiY;
}
int deltaRow = 0;
int deltaCol = 0;
int fromCol = origScrollCol;
int fromRow = origScrollRow;
if (excelWindow.FreezePanes) {
fromCol = 1;
fromRow = 1;
deltaCol = origScrollCol - ap.ScrollColumn; // Note: ap.ScrollColumn/Row <> 1
deltaRow = origScrollRow - ap.ScrollRow; // see comment: when FreezePanes == true ...
}
// Note: Each column width / row height has to be calculated individually.
// Before, tried to use this approach:
// var r2 = (Microsoft.Office.Interop.Excel.Range) cell.Worksheet.Cells[origScrollRow, origScrollCol];
// double dw = cell.Left - r2.Left;
// double dh = cell.Top - r2.Top;
// However, that only works when the zoom factor is a whole number.
// A fractional zoom (e.g. 1.27) causes each individual row or column to round to the closest whole number,
// which means having to loop through.
for (int i = fromCol; i < cell.Column; i++) {
// skip the columns between the frozen split and the first visible column
if (i >= ap.ScrollColumn && i < ap.ScrollColumn + deltaCol)
continue;
var col = ((Microsoft.Office.Interop.Excel.Range) ws.Cells[cell.Row, i]);
double ww = col.Width * dpiX / 72;
double newW = zoomFactor * ww;
x += (int) Math.Round(newW);
}
for (int i = fromRow; i < cell.Row; i++) {
// skip the columns between the frozen split and the first visible column
if (i >= ap.ScrollRow && i < ap.ScrollRow + deltaRow)
continue;
var row = ((Microsoft.Office.Interop.Excel.Range) ws.Cells[i, cell.Column]);
double hh = row.Height * dpiY / 72;
double newH = zoomFactor * hh;
y += (int) Math.Round(newH);
}
ap.ScrollColumn = origScrollCol;
ap.ScrollRow = origScrollRow;
excelApp.ScreenUpdating = true;
Form f = new Form();
f.StartPosition = FormStartPosition.Manual;
f.Location = new Point(x, y);
f.Show();
这篇关于在单元格下方显示WinForm的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
