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C#读取access表,并把数据显示在gridcontrol中

 //读取标准列表
        private void setModelList()
        {
            OleDbConnection Connection = null;
            string tableName = "";
            try
            {
                string strMdb = this.textBox5.Text;//mdb路径
                Connection = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strMdb + "");
                Connection.Open();
                DataTable schemaTable = Connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
                foreach (DataRow dr in schemaTable.Rows)
                {
                    //表名  
                    tableName = dr["TABLE_NAME"].ToString();
                    //字段名  
                    //DataTable columnTable = Connection.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[]


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