QUESTION how to deal with errors and exceptions

[reggiepod]

Private Sub Rebind()
ReleaseBinding()
classesQuery.Select(classesQuery.Section, classesQuery.Subject)
classesCol.Load(classesQuery.Where(classesQuery.TeacherUname = GlobalUsername))
'classesCol.LoadAll()
BindingSource1.DataSource = classesCol
BindingNavigator1.BindingSource = BindingSource1
DataGridView1.DataSource = BindingSource1
TextBoxID.DataBindings.Add("text", BindingSource1, "ID") 'the error popped in this line
TextBoxSection.DataBindings.Add("text", BindingSource1, "Section")
TextBoxSubject.DataBindings.Add("text", BindingSource1, "Subject")
ComboBoxTIhrs.DataBindings.Add("text", BindingSource1, "StartTimeHr")
ComboBoxTImins.DataBindings.Add("text", BindingSource1, "StartTimeMin")
ComboBoxTOhrs.DataBindings.Add("text", BindingSource1, "EndTimeHr")
ComboBoxTOmins.DataBindings.Add("text", BindingSource1, "EndTimeMin")
LabelM.DataBindings.Add("text", BindingSource1, "Monday")
LabelT.DataBindings.Add("text", BindingSource1, "Tuesday")
LabelW.DataBindings.Add("text", BindingSource1, "Wednesday")
LabelTH.DataBindings.Add("text", BindingSource1, "Thursday")
LabelF.DataBindings.Add("text", BindingSource1, "Friday")
LabelS.DataBindings.Add("text", BindingSource1, "Saturday")
LabelSU.DataBindings.Add("text", BindingSource1, "Sunday")

End Sub







My error says : ArgumentException was unhandled

Cannot bind to the property or column ID on the DataSource.
Parameter name: dataMember

 

[jmcilhinney]

That means that your data source has no column named ID.