Question

我正在研究这个项目，我想在VB.NET的datagridview中显示MySQL表的内容。

检索表的查询工作正常，但是当我运行程序时，它不会在显示的表中显示任何数据。

我正在使用的代码：

Private Sub Products_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    SearchTextBox.Enabled = False
    Label1.Enabled = False

    SqlConn = New MySqlConnection
    SqlConn.ConnectionString = "Server=localhost;userid=root;password=;database=osap"
    Dim data As MySqlDataAdapter

    Try
        SqlConn.Open()
        data = New MySqlDataAdapter("SELECT products.id, inventory, description, products.name, categories.name as category, price FROM products INNER JOIN branches ON products.branch_id = branches.id INNER JOIN categories ON products.category_id = categories.id WHERE branch_id ='" & LoginForm.BranchIDTextBox.Text & "' ", SqlConn)
        productstable = New DataTable
        data.Fill(productstable)

        ProductsDataGridView.DataSource = productstable
        ProductsDataGridView.ReadOnly = True
        SqlConn.Close()

    Catch ex As Exception
        MessageBox.Show(ex.Message)

    Finally
        SqlConn.Dispose()
    End Try

End Sub

为什么我在DataGridView中没有得到任何结果？

Answer 1

不确定我是怎么看不到的 - 你没有绑定你的数据：

ProductsDataGridView.DataSource = productstable 
ProductsDataGridView.DataBind()

在vb.net中的datagridview中显示一个mysql db表

1 个答案: