private void button2_Click(object sender, EventArgs e)
{
IChart_Dev = ChartControlDevexpress as IChart;
Control chart = IChart_Dev.CretaeUChart();
panel1.Controls.Clear();
chart.Parent = panel1;
}
private void button1_Click(object sender, EventArgs e)
{
IChart_TeeChart = ChartControlTeeChart as IChart;
Control chart = IChart_TeeChart.CretaeUChart();
panel1.Controls.Clear();
chart.Parent = panel1;
}