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這是我的代碼。 'XXXXXXX'應該是checklistbox中項目的值成員,但我不知道如何獲取它。我應該在那裏寫什麼?如何在清單箱中獲得物品的價值成員
For i As Integer = 0 To deptClb.Items.Count - 1
If (deptClb.GetItemChecked(i)) Then
MsgBox(deptClb.GetItemChecked(i).ToString)
cmd = New SqlCommand("if not exists(select * from Institutes_Departments_junction where department_id [email protected] and institute_id [email protected]) begin insert into Institutes_Departments_junction(department_id, institute_id) values(@deid, @inid) End", con)
cmd.Parameters.AddWithValue("inid", SqlDbType.Int).Value = institute_id
cmd.Parameters.AddWithValue("deid", XXXXXXXXX)
cmd.ExecuteNonQuery()
Else
cmd = New SqlCommand(" Delete from Institutes_Departments_junction where department_id =deid and institute_id =inid end", con)
cmd.Parameters.AddWithValue("inid", SqlDbType.Int).Value = institute_id
cmd.Parameters.AddWithValue("deid", XXXXXXXXX)
cmd.ExecuteNonQuery()
End If
Next
我知道的另一種方法,其適用於檢查項目,但它是不夠的,因爲我需要做的事情爲未被檢查的項目也是如此。和它一樣。
For Each checkeditem As DataRowView In deptClb.CheckedItems
cmd = New SqlCommand("if not exists(select * from Institutes_Departments_junction where department_id [email protected] and institute_id [email protected]) begin insert into Institutes_Departments_junction(department_id, institute_id) values(@deid, @inid) End", con)
cmd.Parameters.AddWithValue("inid", SqlDbType.Int).Value = institute_id
cmd.Parameters.AddWithValue("deid", checkeditem(deptClb.ValueMember))
cmd.ExecuteNonQuery()
Next
那麼,如何獲得已選中和未選中項目的值成員?
這是Winforms還是什麼? – Plutonix
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