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Form1.cs
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Form1.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace CustomLabelsWithaLargeAmountOfData
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'nwindDataSet.Products' table. You can move, or remove it, as needed.
this.productsTableAdapter.Fill(this.nwindDataSet.Products);
}
private void chartControl1_CustomDrawSeriesPoint(object sender, DevExpress.XtraCharts.CustomDrawSeriesPointEventArgs e)
{
int index = e.Series.Points.IndexOf(e.SeriesPoint);
if (index == 0)
{
if (e.SeriesPoint.Values[0] <= e.Series.Points[index+1].Values[0])
e.LabelText = "";
return;
}
if (index == e.Series.Points.Count - 1)
{
if (e.SeriesPoint.Values[0] <= e.Series.Points[index - 1].Values[0])
e.LabelText = "";
return;
}
if ((e.SeriesPoint.Values[0] <= e.Series.Points[index - 1].Values[0]) || (e.SeriesPoint.Values[0] <= e.Series.Points[index + 1].Values[0]))
e.LabelText = "";
}
}
}