add f2 to open, backspace to clear

Controls.LookupGrid/LookupControl3.vb

@@ -15,6 +15,8 @@ Imports DevExpress.XtraGrid.Columns
 Public Class LookupControl3
     Inherits GridLookUpEdit
 
+    Private Const TAG_BUTTON_LOOKUP_FORM = "openLookupForm"
+
     <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)>
     Public Shadows ReadOnly Property Properties As RepositoryItemLookupControl3
         Get
@@ -36,6 +38,19 @@ Public Class LookupControl3
         e.Cancel = True
     End Sub
 
+    Private Sub LookupControl3_KeyUp(sender As Object, e As KeyEventArgs) Handles Me.KeyUp
+        If e.KeyCode = Keys.F2 Then
+            Dim oLookup As LookupControl3 = sender
+            Dim oButton As EditorButton = oLookup.Properties.Buttons.
+                Where(Function(b) b.Tag = TAG_BUTTON_LOOKUP_FORM).
+                SingleOrDefault()
+
+            If oButton IsNot Nothing Then
+                oLookup.PerformClick(oButton)
+            End If
+        End If
+    End Sub
+
     Shadows WithEvents fProperties As RepositoryItemGridLookUpEdit
     Friend WithEvents fPropertiesView As DevExpress.XtraGrid.Views.Grid.GridView
 End Class

Controls.LookupGrid/frmLookupGrid.vb

@@ -22,6 +22,8 @@ Public Class frmLookupGrid
     Private _Grid As GridControl
     Private ReadOnly _R As Resources.ResourceManager = My.Resources.Strings.ResourceManager
 
+    Private colCheckbox As GridColumn
+
 #Region "Form Events"
     Private Sub frmLookupGrid_Load(sender As Object, e As EventArgs) Handles Me.Load
         _View = viewLookup
@@ -57,12 +59,12 @@ Public Class frmLookupGrid
 
         If MultiSelect Then
             ' Selected Spalte anpassen
-            Dim oCheckboxColumn = _View.Columns.Item(0)
+            colCheckbox = _View.Columns.Item(0)
             'oCheckboxColumn.Visible = False
-            oCheckboxColumn.Caption = " "
-            oCheckboxColumn.MaxWidth = 30
-            oCheckboxColumn.MinWidth = 30
-            oCheckboxColumn.OptionsColumn.AllowFocus = False
+            colCheckbox.Caption = " "
+            colCheckbox.MaxWidth = 30
+            colCheckbox.MinWidth = 30
+            colCheckbox.OptionsColumn.AllowFocus = False
 
 
             Text = _R.GetString("PopupForm_TextMultiselect")
@@ -107,14 +109,24 @@ Public Class frmLookupGrid
 #End Region
 #Region "Button Events"
     Private Sub btnOK_Click(sender As Object, e As EventArgs) Handles btnOK.Click
-        SaveSelectedValues()
+        SaveAndClose()
+    End Sub
+
+    Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click
+        ClearAndClose()
+    End Sub
+
+    Private Sub ClearAndClose()
+        SelectedValues = New List(Of String)
 
         DialogResult = DialogResult.OK
         Close()
     End Sub
 
-    Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click
-        SelectedValues = New List(Of String)
+    Private Sub SaveAndClose()
+        ' Make sure the currently focused row's state is saved
+        viewLookup.PostEditor()
+        SaveSelectedValues()
 
         DialogResult = DialogResult.OK
         Close()
@@ -130,17 +142,29 @@ Public Class frmLookupGrid
     End Sub
 
     Private Sub HandleCustomKeys(e As KeyEventArgs)
-        If e.KeyCode = Keys.Escape Then
+        Select Case e.KeyCode
+            Case Keys.Escape
                 Close()
 
-        ElseIf e.KeyCode = Keys.F2 Then
-            ' Make sure the currently focused row's state is saved
-            viewLookup.PostEditor()
-            SaveSelectedValues()
+            Case Keys.F2
+                SaveAndClose()
 
-            DialogResult = DialogResult.OK
-            Close()
+            Case Keys.Back
+                ClearAndClose()
+
+            Case Keys.Space
+                If MultiSelect Then
+                    Dim oHandle = viewLookup.FocusedRowHandle
+                    If oHandle >= 0 Then
+                        Dim oIsChecked = viewLookup.GetRowCellValue(oHandle, colCheckbox)
+                        If oIsChecked Then
+                            viewLookup.SetRowCellValue(oHandle, colCheckbox, False)
+                        Else
+                            viewLookup.SetRowCellValue(oHandle, colCheckbox, True)
                         End If
+                    End If
+                End If
+        End Select
     End Sub
 #End Region
 #Region "View Events"