我在 mysql 中制作了一个带有属性产品代码、数量、公司、价格的表。我在 vb 2012 中创建了一个 datagridview,我想从表单中获取输入,然后在 datagridview 中显示结果。我还想从我在 mysql 中创建的表中显示价格。但是,我不能这样做。
这是我的程序的代码。请帮帮我
Dim row As Integer = DataGridView1.Rows.Add()
Dim connection As String
Dim command As String
Dim command2 As String
command2 = "select Company from Stock WHERE Product_Code =('" + TextBox1.Text + "');"
connection = "Data Source=localhost; Database=Entry; User Id=root; Password=;"
command = "select Price from Stock WHERE Product_Code =('" + TextBox1.Text + "');"
Dim con As New MySqlConnection(connection)
Dim cmd As New MySqlCommand(command)
Dim data As DataTable
Dim adp As New MySqlDataAdapter
Dim data2 As DataTable
Dim adp2 As New MySqlDataAdapter
DataGridView1.Rows.Item(row).Cells(0).Value = TextBox1.Text
DataGridView1.Rows.Item(row).Cells(2).Value = TextBox2.Text
Try
adp = New MySqlDataAdapter(command, connection)
adp2 = New MySqlDataAdapter(command2, connection)
data = New DataTable
data2 = New DataTable
adp.Fill(data)
adp2.Fill(data2)
DataGridView1.Rows.Item(row).Cells(1).Value = data
DataGridView1.Rows.Item(row).Cells(3).Value = data
Catch ex As Exception
MessageBox.Show("Error")
End Try