unable to store data in access database through windows form

Dear All

I have created a database where there are 3 tables and created relation ship between them.

Alos I have connected database through dataset wizard and codes are as below still  inserted

data is not getting save through one of the binding navigator.

Public Class Form1


    Private Sub AcademicBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AcademicBindingNavigatorSaveItem.Click
        Try
            Me.Validate()
            Me.AcademicBindingSource.EndEdit()
            Me.StudentBindingSource.EndEdit()
            Me.FeeDetailsBindingSource.EndEdit()
            Me.TableAdapterManager.UpdateAll(Me.FeesDataSet)
            MsgBox("Update Successful")
        Catch ex As Exception
            MsgBox("Update Fail")
        End Try
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'TODO: This line of code loads data into the 'FeesDataSet.FeeDetails' table. You can move, or remove it, as needed.
        Me.FeeDetailsTableAdapter.Fill(Me.FeesDataSet.FeeDetails)
        'TODO: This line of code loads data into the 'FeesDataSet.Student' table. You can move, or remove it, as needed.
        Me.StudentTableAdapter.Fill(Me.FeesDataSet.Student)
        'TODO: This line of code loads data into the 'FeesDataSet.Academic' table. You can move, or remove it, as needed.
        Me.AcademicTableAdapter.Fill(Me.FeesDataSet.Academic)

    End Sub

    Private Sub Fee_Collection_DateDateTimePicker_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Fee_Collection_DateDateTimePicker.KeyDown
        Fee_Collection_DateDateTimePicker.Text = Now
    End Sub
End Class

Image of  application is as below

pl let me know what to do.