DevExpress之餅狀圖突出（Explode）設置實例

更新時間：2014年10月24日 11:34:07 投稿：shichen2014

這篇文章主要介紹了DevExpress之餅狀圖突出（Explode）設置方法,以實例形式展示了餅狀圖突出設置的具體實現(xiàn)過程,非常具有實用價值,需要的朋友可以參考下

本文實例講述了DevExpress之餅狀圖突出（Explode）設置方法，分享給大家供大家參考。具體實現(xiàn)方法如下：

關鍵代碼如下：

/// <summary>
/// 餅狀圖突出設置
/// </summary>
/// <param name="chart">ChartControl</param>
/// <param name="pieSeries">Series【僅僅適用于PieSeriesView】</param>
/// <param name="explodeMode">突出模式【枚舉】</param>
/// <param name="explodedValue">突出間距</param>
/// <param name="dragPie">是否可以拖動突出餅狀</param>
public static void SetPieExplode(this ChartControl chart, Series pieSeries, PieExplodeMode explodeMode, int explodedValue, bool dragPie)
{
    if (pieSeries.View is PieSeriesView)
    {
//bool _hitTesting = chart.RuntimeHitTesting;
if (!chart.RuntimeHitTesting)
     chart.RuntimeHitTesting = true;

PieSeriesView _pieView = pieSeries.View as PieSeriesView;
_pieView.ExplodeMode = explodeMode;
_pieView.ExplodedDistancePercentage = explodedValue;
_pieView.RuntimeExploding = dragPie;

// chart.RuntimeHitTesting = _hitTesting;
}
}

代碼使用：

復制代碼代碼如下:

private void BuilderDevChart()

{

    Series _pieSeries = new Series("Series 1", ViewType.Pie);

    _pieSeries.ValueDataMembers[0] = "Value";

    _pieSeries.ArgumentDataMember = "Name";

    _pieSeries.DataSource = CreateChartData();

    chartControl1.Series.Add(_pieSeries);

    //----------------------------------------

    _pieSeries.LegendPointOptions.PointView = PointView.ArgumentAndValues;

    _pieSeries.SetPiePercentage(NumericFormat.Percent, PointView.ArgumentAndValues);

    chartControl1.SetAxisXTitle("test", Color.Red);

    _pieSeries.SetLablePosition(PieSeriesLabelPosition.TwoColumns);

    chartControl1.SetPieExplode(_pieSeries, PieExplodeMode.MinValue, 5, true);

}

運行效果如下圖所示：