private void btnFillter_Click(object sender, EventArgs e) { chartRevenue.Series["Doanh Thu"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Spline; chartRevenue.DataSource = Revenue.GetTotalPriceByDate(dtpFrom.Value, dtpTo.Value); chartRevenue.Series["Doanh Thu"].YValueMembers = "price"; chartRevenue.Series["Doanh Thu"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chartRevenue.Series["Doanh Thu"].XValueMember = "time"; chartRevenue.Series["Doanh Thu"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; }
private void frmRevenue_Load(object sender, EventArgs e) { btnBack.Enabled = false; loadLabel(); chartRevenue.DataSource = Revenue.GetTotalPriceByDate(dtpFrom.Value, dtpTo.Value); chartRevenue.Series["Doanh Thu"].YValueMembers = "price"; chartRevenue.Series["Doanh Thu"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chartRevenue.Series["Doanh Thu"].XValueMember = "time"; chartRevenue.Series["Doanh Thu"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; }