C1.Win.C1Chart3D.Style：2.0.20201.416

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本帖最后由鲁丰恺于 2024-10-11 16:56 编辑

请问一下，我通过c1Chart3D1控件，绘制3D的柱状图。
怎么清空c1Chart3D1中的数据？

鲁丰恺 · 鲁丰恺

这是我写入数据的代码：

#region
         Random nex = new Random();

         // 创建数据源
         List<DataPoint> categorySales1 = new List<DataPoint>
         {
            new DataPoint(nex.Next(0,10), nex.Next(0,10), nex.Next(0,1200)),
            new DataPoint(nex.Next(0,10), nex.Next(0,10), nex.Next(0,1200)),
            new DataPoint(nex.Next(0,10), nex.Next(0,10), nex.Next(0,2200)),
            new DataPoint(nex.Next(0,10), nex.Next(0,10), nex.Next(0,1200)),
            new DataPoint(nex.Next(0,10), nex.Next(0,10), nex.Next(0,1200))
         };
         #endregion

         grid.RowCount = 11;
         grid.ColumnCount = 11;

         for (int i = 0; i < categorySales1.Count; i++)
         {
            var point = categorySales1[i];
            grid[Convert.ToInt32(point.X), Convert.ToInt32(point.Y)] = point.Z;
            textBox1.Text += point.X + "，" + point.Y + "，" + point.Z + "\r\n";
         }

         c1Chart3D1.UseAntiAliasedGraphics = true;//获取或设置一个值，该值指示在呈现时是否使用抗锯齿

鲁丰恺 · 鲁丰恺

用了最笨的办法：

grid.RowCount = 1;
            grid.ColumnCount = 1;

         for (int i = 0; i < categorySales1.Count; i++)
         {
            var point = categorySales1[i];
            grid[Convert.ToInt32(point.X), Convert.ToInt32(point.Y)] = point.Z;
            textBox1.Text += point.X + "，" + point.Y + "，" + point.Z + "\r\n";
         }

写入一个数据，强制清空，然后再重新写入有效数据。