c#报表控件Chart实例用法

SqlConnection sqlCon = new SqlConnection();

sqlCon.ConnectionString = "server=172.11.29.111;uid=sa;pwd=sa;database=Transport";

sqlCon.Open();

string sqlStr = "select year(SmsTime),month(SmsTime), count(*) from AlarmSmsLog where datepart(year,SmsTime)='" + txt_Time.Text + "' group by year(SmsTime),month(SmsTime) ";

SqlDataAdapter da = new SqlDataAdapter(sqlStr, sqlCon);

DataTable dt = new DataTable();

da.Fill(dt);

sqlCon.Close();

Chart1.DataSource = dt;

if (DropDownList2.SelectedItem.Text == "折线图")

{

Chart1.Series[0].ChartType = SeriesChartType.Line;

}

if (DropDownList2.SelectedItem.Text == "柱状图")

{

Chart1.Series[0].ChartType = SeriesChartType.Column;

}

Chart1.ChartAreas[0].AxisX.Title = "月份"; //设置x轴标题

Chart1.ChartAreas[0].AxisY.Title = "统计次数";//设置x轴标题

Chart1.Series[0].XValueMember = dt.Columns[1].ToString();

Chart1.Series[0].YValueMembers = dt.Columns[2].ToString();