i got this error i already checked my table definition
Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
da.InsertCommand = New SqlCommand("INSERT INTO AdmissionRecord VALUES(@Patient_ID, @Patient_Type, @LName)", cs)
da.InsertCommand.Parameters.Add("@Patient_ID", SqlDbType.VarChar).Value = Txtpatient_id.Text
da.InsertCommand.Parameters.Add("@Case_Number", SqlDbType.VarChar).Value = txtCaseNumber.Text
da.InsertCommand.Parameters.Add("@Patient_Type", SqlDbType.VarChar).Value = IIf(String.IsNullOrEmpty(cboxpatient_Type.Text), DBNull.Value, cboxpatient_Type.Text)
da.InsertCommand.Parameters.Add("@LName", SqlDbType.VarChar).Value =
cs.Open()
da.InsertCommand.ExecuteNonQuery()
cs.Close()
MsgBox("New Patient Successfully admitted!")
Txtpatient_id.Text = patientID
txtCaseNumber.Text = caseNUM
TxtChart_ID.Text = chartID
cboxpatient_Type.Text = ""
TxtLName.Text = ""
pls help anybody