請幫助我。 我的vb代碼有一些問題。我有一個Datagridview與複選框列。我的系統是一個圖書館系統。我希望用戶只借2本書。我的問題是。 1.我想限制用戶檢查只有2. 2.當行是檢查我想獲得一些數據,例如書名和作者,並把它放在一個標籤。VB.Net限制檢查datagridview並從它獲得數據標籤
請幫幫我。
Public Sub BorrowBook()
Dim Message As String = String.Empty
Dim Message1 As String = String.Empty
Dim Message2 As String = String.Empty
Dim Message3 As String = String.Empty
Dim Message4 As String = String.Empty
Dim Message5 As String = String.Empty
For Each row As DataGridViewRow In Form5.DataGridView1.Rows
Dim isSelected As Boolean = Convert.ToBoolean(row.Cells("checkBoxColumn").Value)
isSelected += 1
If isSelected = 1 Then
Message = row.Cells("BookID").Value.ToString()
Message1 = row.Cells("CallNumber").Value.ToString()
Message2 = row.Cells("Title").Value.ToString()
ElseIf isSelected = 2 Then
Message3 = row.Cells("BookID").Value.ToString()
Message4 = row.Cells("CallNumber").Value.ToString()
Message5 = row.Cells("Title").Value.ToString()
End If
Next
Form5.Label17.Text = Message
Form5.Label25.Text = Message1
Form5.Label21.Text = Message2
Form5.Label20.Text = Message3
Form5.Label26.Text = Message4
Form5.Label19.Text = Message5
End Sub
我已經擁有了它,tnx ..問題1請 – Elaine