C#柱状图

private void lookUpEdit1_EditValueChanged(object sender, EventArgs e)//lookUpEdit1值改变事件

{

string ro = lookUpEdit2.EditValue.ToString();//ro获取值

if (ro == "")

{

MessageBox.Show("请先选择！");

return;

}

else if (dataGridView1.Rows.Count > 0)

{

chart1.Titles.Clear();

string title = comboBox2.SelectedItem.ToString() + " " + "通道统计";//标题显示

chart1.Titles.Add(title);

chart1.Series.Clear();

Series series = new Series(lookUpEdit2.Text.ToString());

this.chart1.DataSource = dataGridView1.DataSource;

series.XValueMember = "datetimes";//x轴

series.YValueMembers = ro;//y轴

series.Color = Color.Red;

series.IsValueShownAsLabel = true;

series.ChartType = SeriesChartType.Column;//类型为柱形图

chart1.Series.Add(series);

this.chart1.DataBind();//绑定数据

}

}