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web.config:
<appSettings>
<add key="ConnectString" value="Provider=Microsoft.Jet.OLEDB.4.0; Data Source="/>
</appSettings>
csÀà:
public static string ConnectString = System.Configuration.ConfigurationManager.AppSettings["ConnectString"].ToString() + System.AppDomain.CurrentDomain.BaseDirectory + "/db/chatroom.mdb";
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private void button1_Click(object sender, EventArgs e)
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