The expression contains invalid date constant - vb.net

Question

I tried this code first before copying it to my main project (I created new project to test the codes first):
Private Sub posBtn_Click(sender As Object, e As EventArgs) Handles posBtn.Click
On Error GoTo wewe
If posText.Text = "" Then
Call notFound()
Exit Sub
Else
Dim cantFind As String = posText.Text
EmployeesRecordBindingSource.Filter = "(Convert(#_of_Employees, 'System.String') LIKE '" & posText.Text & "')" & "OR (last_name LIKE '" & posText.Text & "') OR (first_name LIKE '" & posText.Text & "')" & "OR (mi LIKE '" & posText.Text & "') OR (position LIKE '" & posText.Text & "')"
If EmployeesRecordBindingSource.Count <> 0 Then
With DataGridView2
.DataSource = EmployeesRecordBindingSource
End With
Else
MsgBox(cantFind & vbNewLine & "The search item was not found!", MsgBoxStyle.Information, "Hey boss")
EmployeesRecordBindingSource.Filter = Nothing
With DataGridView2
.ClearSelection()
.DataSource = EmployeesRecordBindingSource
End With
End If
End If
lul:
Exit Sub
wewe:
MsgBox("Error Number " & Err.Number & vbNewLine & "Error Description " & Err.Description, MsgBoxStyle.Critical, "Reset Error!")
Resume lul
End Sub
In my sample project, this is working. But when I copied it to my main project and run, I got this error: The expression contains invalid date constant '#_ofE_Employees, 'Sytem.String') LIKE '1')OR and so on... Did I missed something? Btw, it is for searching in datagridview. I have also private sub for reset, notfound.

Answer 1

Fields cannot start with the # as it is used for dates.
You might reconsider using signs and numbers when creating fields and variables in both your platform and database because there are chances those are reserved.