DAL Generator: How to get Grid Checkbox? - wpf

Question

I am building a WPF D.A.L. generator.
In my main page, I have a DataGrid populated with a list of the tables in my database.
I also have an extra checkbox column called ShouldInclude? I intend to use this to determine whether or not the table should be included in the generation... yes if checked, no if un-checked.
Because I am populating the DataGrid's ItemSource with a strongly typed list of some basic info TableName, Schema, Columns, I am now finding myself at a loss as to how I can get the checked value of the checkbox so I can make that determination on whether to include it or not.
Here are my functions that build out my table typing class code files:
Private Sub GenerateTyping(ByVal _DG As DataGrid)
For Each i As TableTyping In _DG.Items
'check if should be generated
Dim _TString As String = String.Empty
Using _sr As New StreamReader(Common.GetPath() & "Class Templates\CSharp\Typing\XXX_Typing.txt")
_TString = _sr.ReadToEnd()
_sr.Close()
End Using
Dim _FN As String = i.Name & "_Typing.cs"
Dim _Props As New StringBuilder()
Dim _CL As List(Of ColumnTyping) = i.Columns
For Each col In _CL
With _Props
Dim _PropStr As String = "public " & Common.GetClrType(col.Type) & " " & col.Name & " { get; set; }"
.AppendLine(" " & _PropStr)
End With
Next
'Write the new class files
_TString = _TString.Replace("##TABLENAME##", If(i.Schema.Length > 0, i.Schema & "_", "") & i.Name).Replace("##THE_PROPERTIES##", _Props.ToString())
If Not Directory.Exists(FilePath & "\Typing\") Then
Directory.CreateDirectory(FilePath & "\Typing\")
End If
Using _sw As New StreamWriter(FilePath & "\Typing\" & If(i.Schema.Length > 0, i.Schema & "_", "") & i.Name & "_Typing.cs", False)
_sw.Write(_TString)
_sw.Close()
End Using
_TString = String.Empty
_Props.Clear()
Next
End Sub
Partial Public Class TableTyping
Public Property ID As Integer
Public Property Name As String
Public Property Schema As String
Public Property Columns As List(Of ColumnTyping)
End Class
Partial Public Class ColumnTyping
Public Property ID As Integer
Public Property Name As String
Public Property Type As SqlDataType
Public Property Length As Integer
Public Property DefaultValue As String
Public Property Precision As Integer
Public Property Scale As Integer
End Class
My datagrid simply consists of 3 columns. Include?, Table Schema, Table Name, which is populated via:
<DataGrid EnableRowVirtualization="True" Name="dgTables" IsReadOnly="True" AutoGenerateColumns="False" FontFamily="Calibri" FontSize="14" IsEnabled="False">
<DataGrid.Columns>
<DataGridTemplateColumn Header="Include?">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<CheckBox Tag="{Binding ID}" HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="True" Name="ckTblInclude" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTextColumn Binding="{Binding Schema}" Header="Schema"/>
<DataGridTextColumn Binding="{Binding Name}" Header="Name"/>
</DataGrid.Columns>
</DataGrid>
AND:
_tg.ItemsSource = _Table
Private Sub GrabTables()
Dim _Db As Database = Srv.Databases(DBName)
Dim _Tbls As TableCollection = _Db.Tables
Dim _tct As Integer = _Tbls.Count
Dim _i As Integer = 0
For i = 0 To _tct - 1
If Not _Tbls(i).IsSystemObject Then
_i += 1
_Tables.Add(New TableTyping() With {
.ID = _i,
.Name = _Tbls(i).Name,
.Schema = _Tbls(i).Schema,
.Columns = ProcessColumns(_Tbls(i).Columns)})
End If
Next
_TCount = _Tables.Count
End Sub
_Tables is a List(of TableTyping)
How can I do the Include? check inside the GenerateTyping procedure?

Answer 1

I had to change my checkbox template to the following:
<CheckBox Tag="{Binding ID}" HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="{Binding Include, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Name="ckTblInclude" />
And change the _Tables list to populate via:
Private Sub GrabTables()
Dim _Db As Database = Srv.Databases(DBName)
Dim _Tbls As TableCollection = _Db.Tables
Dim _tct As Integer = _Tbls.Count
Dim _i As Integer = 0
For i = 0 To _tct - 1
If Not _Tbls(i).IsSystemObject Then
_i += 1
_Tables.Add(New TableTyping() With {
.ID = _i,
.Name = _Tbls(i).Name,
.Schema = _Tbls(i).Schema,
.Columns = ProcessColumns(_Tbls(i).Columns),
.Include = True})
End If
Next
_TCount = _Tables.Count
End Sub