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我想在Visual Basic中將數據加載到datagridview中,但得到此錯誤。從'DBNull'類型到'Decimal'類型的轉換無效。 - Datagridview從數據庫加載數據時發出的問題
從'DBNull'類型到'Decimal'類型的轉換無效。 - Datagridview從數據庫加載數據時的問題,
請在編寫回復時記住我是一個完整的新手。
而且通過我已經試過一些的數值後加的ToString方式,
Private Sub DataGridView1_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
Dim i As Integer
Me.TextBox1.Text = DataGridView1.Item(0, i).Value.ToString
Me.TextBox8.Text = DataGridView1.Item(1, i).Value.ToString
Me.TextBox9.Text = DataGridView1.Item(2, i).Value.ToString
Me.TextBox11.Text = DataGridView1.Item(3, i).Value.ToString
'valoren_code'
Me.TextBox3.Text = DataGridView1.Item(4, i).Value.ToString
Me.TextBox13.Text = DataGridView1.Item(5, i).Value.ToString
Me.TextBox15.Text = DataGridView1.Item(6, i).Value.ToString
Me.TextBox14.Text = DataGridView1.Item(7, i).Value.ToString
Me.NumericUpDown6.Value = DataGridView1.Item(8, i).Value.ToString
Me.DateTimePicker2.Text = DataGridView1.Item(9, i).Value.ToString
Me.ComboBox1.SelectedItem = DataGridView1.Item(10, i).Value.ToString
Me.ComboBox8.SelectedItem = DataGridView1.Item(11, i).Value.ToString
Me.ComboBox2.SelectedItem = DataGridView1.Item(12, i).Value.ToString
Me.ComboBox3.SelectedItem = DataGridView1.Item(13, i).Value.ToString
Me.ComboBox4.SelectedItem = DataGridView1.Item(14, i).Value.ToString
Me.ComboBox5.SelectedItem = DataGridView1.Item(15, i).Value.ToString
Me.ComboBox6.SelectedItem = DataGridView1.Item(16, i).Value.ToString
Me.ComboBox7.SelectedItem = DataGridView1.Item(17, i).Value.ToString
Me.ListBox1.SelectedItem = DataGridView1.Item(18, i).Value.ToString
Me.NumericUpDown8.Text = DataGridView1.Item(19, i).Value.ToString
Me.NumericUpDown7.Text = DataGridView1.Item(20, i).Value.ToString
Me.NumericUpDown5.Text = DataGridView1.Item(21, i).Value.ToString
Me.NumericUpDown13.Text = DataGridView1.Item(22, i).Value.ToString
Me.NumericUpDown14.Value = DataGridView1.Item(23, i).Value.ToString
'mid_trade_clean_price_proximity
Me.NumericUpDown15.Value = DataGridView1.Item(24, i).Value.ToString
Me.NumericUpDown16.Value = DataGridView1.Item(25, i).Value
Me.TextBox2.Text = DataGridView1.Item(26, i).Value.ToString
Me.ListBox3.SelectedItem = DataGridView1.Item(27, i).Value.ToString
End Sub
感謝您的回覆,但我該怎麼做? – user1712552
@ user1712552 - 你會怎麼做?請注意,您已發佈**無代碼**,因此我們無法談論任何具體的事情。 – Oded
如何使用可爲空的小數? – user1712552