//取得数据集

            string connstring = "Data Source=127.0.0.1;Initial Catalog=abn_LTGS;User ID=sa;Password=;Persist Security Info=True;MultipleActiveResultSets=False;Packet Size=4096";

            System.Data.SqlClient.SqlConnection conn1 = new System.Data.SqlClient.SqlConnection(connstring);

            System.Data.SqlClient.SqlCommand command1 = new System.Data.SqlClient.SqlCommand("select lane from deviantList", conn1);

            System.Data.SqlClient.SqlDataAdapter ada1 = new System.Data.SqlClient.SqlDataAdapter(command1);

            DataSet c_ds = new DataSet();

            try             {

                conn1.Open();

                ada1.Fill(c_ds);

            }

            finally             {

                conn1.Close();

                command1.Dispose();

                conn1.Dispose();

            }             //为报表浏览器指定报表文件             this.reportViewer1.LocalReport.ReportPath = @"d:\documents\visual studio 2010\Projects\报表1\报表1\Report1.rdlc";            this.reportViewer1.LocalReport.DataSources.Clear();             this.reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("DataSet1", c_ds.Tables[0]));           this.reportViewer1.RefreshReport();

```   ``` **加载数据正常! 这里设置边距和A4纸** [图片说明](http://img.ask.csdn.net/upload/201710/20/1508436783_872671.png) rdlc XML  http://ask.csdn.net/questions?type=reward# ```http://ask.csdn.net/questions?type=reward#   ``` 

导出EXCEL后边距却没有改变  请赐教！！