I have the following datagrid but the checkboxes are not behaving normally. I expect each checkbox to accept 1 click to change state and another click to change it back but this is not happening.

When I check on one of the boxes, it will select the entire row, and if I check it again, it will then change the state. Then the next click will select the row again, and the following click will change the state back.

How can I stop the grid from selecting the entire row, and just change the state of the checkbox for each click?

VB Code:
  1. Public dtSession As New DataTable("SessionTable")

  2.     Public dsSession As DataSet = New DataSet("SessionData")

  3.     Public sSessionId As String = "Session ID"

  4.     Public sSessionDesc As String = "Session Descripton"

  5.     Public sSessionCB1 As String = "CB1"

  6.     Public sSessionCB2 As String = "CB2"

  7.     Public sSessionCB3 As String = "CB3"

  8.     Public sSessionCB4 As String = "CB4"

  9.  
  10.  
  11.     Public Sub sessionDataGrid_Load()

  12.  
  13.         Dim myRow As DataRow

  14.         Dim x As Integer

  15.         Dim dgts As New DataGridTableStyle

  16.         Dim dgcs1 As New DataGridTextBoxColumn

  17.         Dim dgcs2 As New DataGridTextBoxColumn

  18.         Dim dgcs3 As New DataGridBoolColumn

  19.         Dim dgcs4 As New DataGridBoolColumn

  20.         Dim dgcs5 As New DataGridBoolColumn

  21.         Dim dgcs6 As New DataGridBoolColumn

  22.         Dim cb1, cb2, cb3, cb4 As DataColumn

  23.  
  24.                Try

  25.             sessionDataGrid.CaptionText = "Sessions Currently in Data Base"

  26.             dtSession.Clear()

  27.             dtSession.Columns.Add(New DataColumn(sSessionId, GetType(String)))

  28.             dtSession.Columns.Add(New DataColumn(sSessionDesc, GetType(String)))

  29.  
  30.             cb1 = New DataColumn(sSessionCB1, GetType(Boolean))

  31.             cb1.ReadOnly = False

  32.             cb1.DefaultValue = False

  33.             dtSession.Columns.Add(cb1)

  34.  
  35.             cb2 = New DataColumn(sSessionCB2, GetType(Boolean))

  36.             cb2.ReadOnly = False

  37.             cb2.DefaultValue = False

  38.             dtSession.Columns.Add(cb2)

  39.  
  40.             cb3 = New DataColumn(sSessionCB3, GetType(Boolean))

  41.             cb3.ReadOnly = False

  42.             cb3.DefaultValue = False

  43.             dtSession.Columns.Add(cb3)

  44.  
  45.             cb4 = New DataColumn(sSessionCB4, GetType(Boolean))

  46.             cb4.ReadOnly = False

  47.             cb4.DefaultValue = False

  48.             dtSession.Columns.Add(cb4)

  49.  
  50.             dgcs1.MappingName = sSessionId

  51.             dgcs1.ReadOnly = True

  52.             dgcs1.HeaderText = sSessionId

  53.             dgts.GridColumnStyles.Add(dgcs1)

  54.  
  55.             dgcs2.MappingName = sSessionDesc

  56.             dgcs2.ReadOnly = True

  57.             dgcs2.Width = sessionDataGrid.Size.Width / 3

  58.             dgcs2.HeaderText = sSessionDesc

  59.             dgts.GridColumnStyles.Add(dgcs2)

  60.  
  61.             dgcs3.MappingName = sSessionCB1

  62.             dgcs3.ReadOnly = False

  63.             dgcs3.AllowNull = False 'Makes the checkbox 2 state

  64.             dgcs3.HeaderText = sSessionCB2

  65.             dgts.GridColumnStyles.Add(dgcs3)

  66.  
  67.             dgcs4.MappingName = sSessionCB2

  68.             dgcs4.ReadOnly = False

  69.             dgcs4.AllowNull = False 'Makes the checkbox 2 state

  70.             dgcs4.HeaderText = sSessionCB2

  71.             dgts.GridColumnStyles.Add(dgcs4)

  72.  
  73.             dgcs5.MappingName = sSessionCB3

  74.             dgcs5.ReadOnly = False

  75.             dgcs5.AllowNull = False 'Makes the checkbox 2 state

  76.             dgcs5.HeaderText = sSessionCB3

  77.             dgts.GridColumnStyles.Add(dgcs5)

  78.  
  79.             dgcs6.MappingName = sSessionCB4

  80.             dgcs6.ReadOnly = False

  81.             dgcs6.AllowNull = False 'Makes the checkbox 2 state

  82.             dgcs6.HeaderText = sSessionCB4

  83.             dgts.GridColumnStyles.Add(dgcs6)

  84.  
  85.             dgts.MappingName = "SessionTable"

  86.             sessionDataGrid.TableStyles.Add(dgts)

  87.  
  88.             For x = 0 To gSessions.Length - 2

  89.                 myRow = dtSession.NewRow()

  90.                 myRow(sSessionId) = Hex(gSessions(x).Id)

  91.                 myRow(sSessionDesc) = gSessions(x).Desc

  92.                 myRow(sSessionCB1) = True 'TODO:Get actual value later

  93.                 myRow(sSessionCB2) = True 'TODO:Get actual value later

  94.                 myRow(sSessionCB3) = True 'TODO:Get actual value later

  95.                 myRow(sSessionCB4) = False 'TODO:Get actual value later

  96.                 dtSession.Rows.Add(myRow)

  97.             Next

  98.  
  99.             dsSession.Tables.Add(dtSession)

  100.             sessionDataGrid.DataSource = dtSession

  101.  
  102.         Catch ex As Exception

  103.             MsgBox(ex.Message)

  104.         End Try

  105.  
  106.     End Sub