连接到wampserver MySQL可以在PHP中工作，但不能在vb.NET中工作

我有一个运行MySQL的本地wampserver。我已通过PHP成功连接到它：

<?php
$servername = "localhost";
$username = "pyramid";
$password = "pyramid";

try {
    $conn = new PDO("mysql:host=$servername;dbname=test", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully"; 
    }
catch(PDOException $e)
    {
    echo "Connection failed: " . $e->getMessage();
    }
?>

经过5到10秒的长时间等待后，我得到“系统找不到指定的文件”

两者都有完全相同的用户名、密码服务器和数据库名称，但vb.NET仍然拒绝连接

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我已经尝试了几乎所有我能想到的，并且用尽了我的选择。你能解释一下吗？

你需要下载MySQL connector for.NET Framework（），然后在你的项目中引用.DLL

Imports MySqL.Data.MySqlClient
Public Class Form1

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs)     Handles MyBase.Load
    Dim ConnectionString As String
    Dim SQLCon As MySqlConnection

    ConnectionString =     "Server=localhost;Database=test;Uid=pyramid;Pwd=pyramid"
    SQLCon = New MySqlConnection(ConnectionString)

    Try
        SQLCon.Open()
    Catch ex As Exception
        If ex.InnerException IsNot Nothing Then
            MessageBox.Show(ex.InnerException.Message)
        Else
            MessageBox.Show(ex.Message)
        End If
    Finally
        If SQLCon.State = ConnectionState.Open Then SQLCon.Close()
    End Try
End Sub
End Class

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首先确保安装了MySQL Connector/NET。然后尝试从VisualStudio连接，从SQL Server对象资源管理器连接以检查连接。请阅读以下内容：现在已经完全解决了。非常感谢你！欢迎！！；）按下橙色向上箭头：）并解释您是如何解决的，供其他人学习：）

Imports MySqL.Data.MySqlClient
Public Class Form1

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs)     Handles MyBase.Load
    Dim ConnectionString As String
    Dim SQLCon As MySqlConnection

    ConnectionString =     "Server=localhost;Database=test;Uid=pyramid;Pwd=pyramid"
    SQLCon = New MySqlConnection(ConnectionString)

    Try
        SQLCon.Open()
    Catch ex As Exception
        If ex.InnerException IsNot Nothing Then
            MessageBox.Show(ex.InnerException.Message)
        Else
            MessageBox.Show(ex.Message)
        End If
    Finally
        If SQLCon.State = ConnectionState.Open Then SQLCon.Close()
    End Try
End Sub
End Class