337 lines
14 KiB
VB.net
337 lines
14 KiB
VB.net
Namespace ControlLoader
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Public Class _BaseControl
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Public Shared Function ReplaceSqlCommandPlaceholders(sqlCommand As String, recordId As Integer, parentRecordId As Integer)
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sqlCommand = sqlCommand.Replace("@RECORD_ID", recordId)
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sqlCommand = sqlCommand.Replace("@RECORDID", recordId)
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sqlCommand = sqlCommand.Replace("@PARENTRECORD_ID", parentRecordId)
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sqlCommand = sqlCommand.Replace("@PARENTRECORDID", parentRecordId)
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Return sqlCommand
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End Function
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End Class
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Public Class _ListControl : Inherits _BaseControl
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Public Shared Function _GetDynamicValue(controlId As Integer, formId As Integer, recordId As Integer, parentRecordId As Integer) As DynamicValue
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Dim returnValue As DynamicValue
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returnValue.StaticList = CheckForStaticList(controlId, recordId)
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returnValue.DataTable = CheckForSqlCommand(controlId, formId, recordId, parentRecordId)
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Return returnValue
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End Function
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Private Shared Function CheckForStaticList(controlId As Integer, recordId As Integer) As List(Of String)
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Try
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' Der alte SQL Befehl hat nicht wirklich nach der StaticList geschaut o_O
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' Dim SQL As String = String.Format("SELECT VALUE FROM VWPMO_VALUES WHERE CONTROL_ID = {0} AND RECORD_ID = {1}", controlId, recordId)
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Dim SQL As String = String.Format("SELECT STATIC_LIST FROM TBPMO_CONTROL WHERE GUID = {0}", controlId)
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Dim staticList As String = ClassDatabase.Execute_Scalar(SQL)
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If IsNothing(staticList) Or String.IsNullOrWhiteSpace(staticList) Then
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Return Nothing
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Else
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Return New List(Of String)(staticList.Split(";"))
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End If
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Catch ex As Exception
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MsgBox("Error in CheckForStaticList: " & vbNewLine & ex.Message)
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Return Nothing
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End Try
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End Function
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Private Shared Function CheckForSqlCommand(controlId As Integer, formId As Integer, recordId As Integer, parentRecordId As Integer) As DataTable
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Try
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Dim SQL As String = String.Format("SELECT SQL_COMMAND_1 FROM TBPMO_CONTROL WHERE GUID = {0}", controlId)
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Dim SqlCommand As String = ClassDatabase.Execute_Scalar(SQL)
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If SqlCommand Is Nothing Or SqlCommand = String.Empty Then
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Return Nothing
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End If
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If SqlCommand.Contains("@") Then
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SqlCommand = ReplaceSqlCommandPlaceholders(SqlCommand, recordId, parentRecordId)
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End If
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Dim CachedDataTable As DataTable = ClassControlValueCache.LoadFromCache(formId, controlId)
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Dim FinalDataTable As DataTable
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If CachedDataTable Is Nothing Then
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FinalDataTable = ClassDatabase.Return_Datatable(SqlCommand)
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ClassControlValueCache.SaveToCache(formId, controlId, FinalDataTable)
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Else
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FinalDataTable = CachedDataTable
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End If
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Return FinalDataTable
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Catch ex As Exception
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MsgBox("Error in CheckForSqlCommand: " & vbNewLine & ex.Message)
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Return Nothing
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End Try
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End Function
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End Class
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Public Structure DynamicValue
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Public StaticList As List(Of String)
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Public DataTable As DataTable
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End Structure
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Public Class Label : Inherits _BaseControl
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Private Shared Function LoadAutoValue(control As Windows.Forms.Control, RecordId As Integer, ParentRecordId As Integer)
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Dim AutoValue As String = String.Empty
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Dim ControlId As Integer = control.Tag
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Dim SQL As String = ClassDatabase.Execute_Scalar(String.Format("SELECT SQL_COMMAND_1 FROM TBPMO_CONTROL WHERE GUID = {0}", ControlId))
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SQL = ReplaceSqlCommandPlaceholders(SQL, RecordId, ParentRecordId)
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If SQL = "" Or IsDBNull(SQL) Then
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Return control.Text
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End If
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AutoValue = ClassDatabase.Execute_Scalar(SQL)
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If String.IsNullOrEmpty(AutoValue) Or IsDBNull(AutoValue) Then
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SQL = String.Format("SELECT CONTROL_TEXT FROM TBPMO_CONTROL_SCREEN WHERE CONTROL_ID = {0}", ControlId)
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Dim value = ClassDatabase.Execute_Scalar(SQL)
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Return value
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Else
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Return AutoValue
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End If
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End Function
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Public Shared Sub LoadValue(control As Windows.Forms.Label, recordId As Integer, parentRecordId As Integer, value As String)
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Dim autoValue = LoadAutoValue(control, recordId, parentRecordId)
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If IsNothing(autoValue) Then
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control.Text = value
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Else
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control.Text = autoValue
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End If
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End Sub
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End Class
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Public Class Checkbox : Inherits _BaseControl
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Public Shared Sub LoadValue(control As Windows.Forms.CheckBox, value As String)
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Dim result As Boolean = False
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Boolean.TryParse(value, result)
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control.Checked = result
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End Sub
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End Class
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Public Class RadioButton : Inherits _BaseControl
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Public Shared Sub LoadValue(control As Windows.Forms.RadioButton, value As String)
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Dim result As Boolean = False
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Boolean.TryParse(value, result)
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control.Checked = result
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End Sub
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End Class
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Public Class TextBox : Inherits _BaseControl
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Public Shared Sub LoadValue(control As Windows.Forms.TextBox, value As String)
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control.Text = value
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End Sub
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End Class
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Public Class DateTimePicker : Inherits _BaseControl
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Public Shared Sub LoadValue(control As DevExpress.XtraEditors.DateEdit, value As String)
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If String.IsNullOrWhiteSpace(value) Or value = "00:00:00" Then
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control.DateTime = DateTime.MinValue
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Else
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control.DateTime = DateTime.Parse(value)
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End If
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End Sub
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End Class
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Public Class Combobox : Inherits _ListControl
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Public Shared Sub LoadValue(control As Windows.Forms.ComboBox, recordId As Integer, parentRecordId As Integer, value As String)
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control.Text = value
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End Sub
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Public Shared Sub LoadList(control As Windows.Forms.ComboBox, formId As Integer, recordId As Integer, parentRecordId As Integer)
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Try
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Dim dynamic As DynamicValue = _GetDynamicValue(control.Tag, formId, recordId, parentRecordId)
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If dynamic.StaticList IsNot Nothing Then
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control.DataSource = dynamic.StaticList
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End If
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If dynamic.DataTable IsNot Nothing AndAlso dynamic.DataTable.Rows.Count > 0 Then
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Dim dt As DataTable = dynamic.DataTable
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Dim columnCount As Integer = dt.Columns.Count
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Dim sw2 = Stopwatch.StartNew()
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' Damit beim Setzen von DisplayMember und ValueMember kein Fehler auftritt,
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' muss die Datasource zunächst geleert werden und der selected index auf -1 gesetzt werden.
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control.DataSource = Nothing
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control.SelectedIndex = -1
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' Es ist wichtig, dass DisplayMember und ValueMember VOR der DataSource festgelegt werden,
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' Dadurch ist das Laden der Datasource um einiges SCHNELLER
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If columnCount = 1 Then
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control.DisplayMember = dt.Columns(0).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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ElseIf columnCount = 2 Then
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control.DisplayMember = dt.Columns(1).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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End If
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' Als letztes setzen wir die DataSource
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control.DataSource = dt
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' Die alte Methode:
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'control.DataSource = dt
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'If dt.Columns.Count = 1 Then
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' control.DisplayMember = dt.Columns(0).ColumnName
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' control.ValueMember = dt.Columns(0).ColumnName
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'ElseIf dt.Columns.Count = 2 Then
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' control.DisplayMember = dt.Columns(1).ColumnName
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' control.ValueMember = dt.Columns(0).ColumnName
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'End If
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sw2.Stop()
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Console.WriteLine("Assingning the DataSource took {0}ms", sw2.ElapsedMilliseconds)
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CalculateDropdownWidth(control, dt)
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End If
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Catch ex As Exception
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MsgBox("Error in Combobox.LoadList:" & vbNewLine & ex.Message)
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End Try
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End Sub
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Private Shared Sub CalculateDropdownWidth(control As Windows.Forms.ComboBox, dt As DataTable)
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Const WIDEST_WIDTH As Integer = 300
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Dim FinalWidth As Integer = WIDEST_WIDTH
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For Each row As DataRow In dt.Rows
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'Die Breite der Dropdown-List anpassen
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Using g As Graphics = control.CreateGraphics()
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Dim valueWidth As Integer = g.MeasureString(row.Item(1).ToString(), control.Font).Width
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If valueWidth + 30 > FinalWidth Then
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FinalWidth = valueWidth + 30
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End If
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g.Dispose()
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End Using
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Next
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If FinalWidth > WIDEST_WIDTH Then
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control.DropDownWidth = Math.Max(FinalWidth, control.Width)
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End If
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End Sub
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End Class
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Public Class CheckedListBox : Inherits _ListControl
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Public Shared Sub LoadValue(control As DevExpress.XtraEditors.CheckedListBoxControl, value As String)
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If IsNothing(value) Then
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Exit Sub
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End If
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Dim values() As String = value.Split(";")
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For Each v As String In values
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Dim pos = control.FindStringExact(v)
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If pos >= 0 Then
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control.SetItemCheckState(pos, CheckState.Checked)
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End If
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Next
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End Sub
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Public Shared Sub LoadList(control As DevExpress.XtraEditors.CheckedListBoxControl, formId As Integer, recordId As Integer, parentRecordId As Integer)
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Try
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Dim dynamic As DynamicValue = _GetDynamicValue(control.Tag, formId, recordId, parentRecordId)
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If dynamic.StaticList IsNot Nothing Then
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control.DataSource = dynamic.StaticList
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End If
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If dynamic.DataTable IsNot Nothing AndAlso dynamic.DataTable.Rows.Count > 0 Then
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Dim dt As DataTable = dynamic.DataTable
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Dim columnCount As Integer = dt.Columns.Count
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' Damit beim Setzen von DisplayMember und ValueMember kein Fehler auftritt,
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' muss die Datasource zunächst geleert werden und der selected index auf -1 gesetzt werden.
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control.DataSource = Nothing
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control.SelectedIndex = -1
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' Es ist wichtig, dass DisplayMember und ValueMember VOR der DataSource festgelegt werden,
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' Dadurch ist das Laden der Datasource um einiges SCHNELLER
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If columnCount = 1 Then
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control.DisplayMember = dt.Columns(0).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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ElseIf columnCount = 2 Then
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control.DisplayMember = dt.Columns(1).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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End If
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' Als letztes setzen wir die DataSource
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control.DataSource = dt
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End If
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Catch ex As Exception
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MsgBox("Error in CheckedListBox.LoadList:" & vbNewLine & ex.Message)
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End Try
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End Sub
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End Class
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Public Class ListBox : Inherits _ListControl
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Public Shared Sub LoadValue(control As DevExpress.XtraEditors.ListBoxControl, value As String)
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If IsNothing(value) Then
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Exit Sub
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End If
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control.SelectedIndex = control.FindStringExact(value)
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End Sub
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Public Shared Sub LoadList(control As DevExpress.XtraEditors.ListBoxControl, formId As Integer, recordId As Integer, parentRecordId As Integer)
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Dim dynamic As DynamicValue = _GetDynamicValue(control.Tag, formId, recordId, parentRecordId)
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If dynamic.StaticList IsNot Nothing Then
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control.DataSource = dynamic.StaticList
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End If
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If dynamic.DataTable IsNot Nothing AndAlso dynamic.DataTable.Rows.Count > 0 Then
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Dim dt As DataTable = dynamic.DataTable
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Dim columnCount As Integer = dt.Columns.Count
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' Damit beim Setzen von DisplayMember und ValueMember kein Fehler auftritt,
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' muss die Datasource zunächst geleert werden und der selected index auf -1 gesetzt werden.
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control.DataSource = Nothing
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control.SelectedIndex = -1
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' Es ist wichtig, dass DisplayMember und ValueMember VOR der DataSource festgelegt werden,
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' Dadurch ist das Laden der Datasource um einiges SCHNELLER
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If columnCount = 1 Then
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control.DisplayMember = dt.Columns(0).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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ElseIf columnCount = 2 Then
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control.DisplayMember = dt.Columns(1).ColumnName
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control.ValueMember = dt.Columns(0).ColumnName
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End If
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' Als letztes setzen wir die DataSource
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control.DataSource = dt
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End If
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End Sub
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End Class
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End Namespace
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