Creating chart from datagridview C#

问题

Good day,

i have a little problem. I'm trying to make chart from dataGridView so i wrote short code.

private void create_graphs_Click(object sender, EventArgs e) {

        Chart chart1 = new Chart();

        chart1.Series[0] = new Series();
        chart1.Series[0].XValueMember = dataGridView1.Columns[0].DataPropertyName;
        chart1.Series[0].YValueMembers = dataGridView1.Columns[1].DataPropertyName;
        chart1.DataSource = dataGridView1.DataSource;

        chart1.Series[0].ChartType = SeriesChartType.Line;
        chart1.SaveImage("chart.png", ChartImageFormat.Png);

    }

Syntax without error. Problem is, when i start it, it says:

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

Any suggestion? Thanks in advance.

EDIT 8.7.2017 18:07:

So thanks for your help. I eddited a code and now looks like this:

        ChartArea chartArea1 = new ChartArea();
        chartArea1.AxisX.MajorGrid.LineColor = Color.LightGray;
        chartArea1.AxisY.MajorGrid.LineColor = Color.LightGray;
        chartArea1.AxisX.LabelStyle.Font = new Font("Consolas", 8);
        chartArea1.AxisY.LabelStyle.Font = new Font("Consolas", 8);
        chart1.ChartAreas.Add(chartArea1);

        chart1.Series.Add(new Series());

        chart1.Series[0].XValueMember = dataGridView1.Columns[0].DataPropertyName;
        chart1.Series[0].YValueMembers = dataGridView1.Columns[1].DataPropertyName;
        chart1.DataSource = dataGridView1.DataSource;

        chart1.Series[0].ChartType = SeriesChartType.Line;
        chart1.SaveImage("chart.png", ChartImageFormat.Png);

And its working. Creates a graph but now i need to make that graph, well bigger. This is output image... I don't know how to put image here so at least link: http://imgur.com/a/Y5OaH

Thing is, i have 93 items in my Column so i need that chart to show all 12 months or 13 months... from 1.1.2008 to 1.1.2009

来源：https://stackoverflow.com/questions/45542298/creating-chart-from-datagridview-c-sharp

标签

charts

datagridview