我目前正在通过EPPlus创建Excel电子表格，数据基本上分为，部分，问题，回复，每个都是另一个的子集，我不知道每个部分可能有多少个问题，所以一切需要通过循环来完成。
我想要的是文档包含一个工作表，显示每个问题的图表，给出答案的细分。
我非常接近让它正常工作，但我的代码中的某些内容导致了问题而我无法理解它是什么。
我目前使用的数据包含10个问题，所有图表都已绘制，但最后一个图表直接位于第一个图表的顶部。我也遇到了正确定位文本结果的问题，但由于代码依赖于图表的代码，我希望对图表进行排序可以帮助我对结果进行排序。
这是我的代码：
Int32 chartPaddingX = 50;
Int32 chartPaddingY = 200;
Int32 chartW = 320;
Int32 chartH = 200;
Int32 chartXCount = 0;
Int32 chartYCount = 1;
Int32 marginTop = 0;
Int32 marginLeft = 0;
Int32 resultsControlVar = 0;
Int32 numCharts = 0;
Int32 rnStart = 14;
chartXCount = 0;
chartYCount = 0;
chartPaddingX = 50;
rowNum = y = 14;
colNum = 2;
String title = section.First().title.ToString();
ExcelWorksheet ws = pkg.Workbook.Worksheets.Add(title);
int idx = 0;
foreach (var question in results.questions.Where(q => q.section_guid == section.Key))
{
var chart = ws.Drawings.AddChart(question.question.ToString(), OfficeOpenXml.Drawing.Chart.eChartType.ColumnClustered);
chart.SetSize(chartW, chartH);
chart.Title.Text = question.question.ToString();
chart.Legend.Add();
marginLeft = (chartW + chartPaddingX) * chartXCount;
// SET CHART PLACEMENT
if (numCharts == 0)
{
marginTop = 50;
}
else if ((numCharts <= 3) && (numCharts != 0))
{
marginTop = 50;
}
else if (numCharts > 3)
{
marginTop = ((chartH + chartPaddingY) * chartYCount) + 50;
}
else
{
marginTop = (chartH + chartPaddingY) * chartYCount;
}
if (chartXCount >= 3)
{
chart.SetPosition(marginTop, 50);
chartYCount++;
chartXCount = 0;
resultsControlVar = 1;
}
else
{
chart.SetPosition(marginTop, marginLeft + 50);
}
chartXCount++;
numCharts++;
...... Add results data and chart series ......
if (resultsControlVar == 1)
{
rowNum = rnStart;
rowNum = rowNum + 20;
rnStart = rowNum;
colNum = 2;
resultsControlVar = 0;
}
else
{
rowNum = rnStart;
colNum = colNum + 6;
}
} // close foreach
答案 0 :(得分：1)
检查你的算法逻辑，它没有给出你可能期望的左/顶。如果你把它剥离到最低限度：
[TestMethod]
public void Check_Multi_Test()
{
Int32 chartPaddingX = 50;
Int32 chartPaddingY = 200;
Int32 chartW = 320;
Int32 chartH = 200;
Int32 chartXCount = 0;
Int32 chartYCount = 1;
Int32 marginTop = 0;
Int32 marginLeft = 0;
Int32 numCharts = 0;
chartXCount = 0;
chartYCount = 0;
//foreach (var question in results.questions.Where(q => q.section_guid == section.Key))
for (var i = 0; i < 10; i++)
{
marginLeft = (chartW + chartPaddingX)*chartXCount;
// SET CHART PLACEMENT
if (numCharts == 0)
{
marginTop = 50;
}
else if ((numCharts <= 3) && (numCharts != 0))
{
marginTop = 50;
}
else if (numCharts > 3)
{
marginTop = ((chartH + chartPaddingY)*chartYCount) + 50;
}
else
{
marginTop = (chartH + chartPaddingY)*chartYCount;
}
if (chartXCount >= 3)
{
//chart.SetPosition(marginTop, 50);
Console.WriteLine("{{i: {0}, numCharts: {1}, left: {2}, top: {3}}}", i, numCharts, 50, marginTop); //Console.Writeline will simulate chart placement
chartYCount++;
chartXCount = 0;
}
else
{
//chart.SetPosition(marginTop, marginLeft + 50);
Console.WriteLine("{{i: {0}, numCharts: {1}, left: {2}, top: {3}}}", i, numCharts, marginLeft + 50, marginTop); //Console.Writeline will simulate chart placement
}
chartXCount++;
numCharts++;
}
}
并向左/上输出到控制台，您可以轻松地看到从迭代3开始的错误：
{i: 0, numCharts: 0, left: 50, top: 50}
{i: 1, numCharts: 1, left: 420, top: 50}
{i: 2, numCharts: 2, left: 790, top: 50}
{i: 3, numCharts: 3, left: 50, top: 50}
{i: 4, numCharts: 4, left: 420, top: 450}
{i: 5, numCharts: 5, left: 790, top: 450}
{i: 6, numCharts: 6, left: 50, top: 450}
{i: 7, numCharts: 7, left: 420, top: 850}
{i: 8, numCharts: 8, left: 790, top: 850}
{i: 9, numCharts: 9, left: 50, top: 850}
实际上不应该这么复杂：
//foreach (var question in results.questions.Where(q => q.section_guid == section.Key))
for (var i = 0; i < 10; i++)
{
marginLeft = (chartW + chartPaddingX)*chartXCount + 50;
marginTop = (chartH + chartPaddingY)*chartYCount + 50;
//chart.SetPosition(marginTop, marginLeft); //Console.Writeline will simulate chart placement
Console.WriteLine("{{i: {0}, numCharts: {1}, left: {2}, top: {3}}}", i, numCharts, marginLeft, marginTop);
if (chartXCount >= 2)
{
chartYCount++;
chartXCount = 0;
}
else
chartXCount++;
numCharts++;
}
给你这个：
{i: 0, numCharts: 0, left: 50, top: 50}
{i: 1, numCharts: 1, left: 420, top: 50}
{i: 2, numCharts: 2, left: 790, top: 50}
{i: 3, numCharts: 3, left: 50, top: 450}
{i: 4, numCharts: 4, left: 420, top: 450}
{i: 5, numCharts: 5, left: 790, top: 450}
{i: 6, numCharts: 6, left: 50, top: 850}
{i: 7, numCharts: 7, left: 420, top: 850}
{i: 8, numCharts: 8, left: 790, top: 850}
{i: 9, numCharts: 9, left: 50, top: 1250}
答案 1 :(得分：0)
接受了Ernie的答案，因为他在我之前到达那里并提供了一些有用的调试技巧。非常感谢你的时间厄尼。
我确实今天早上设法解决了这个问题，然后再回过头来看看这个问题：
foreach (var question in results.questions.Where(q => q.section_guid == section.Key))
{
// SET CHART PLACEMENT
if (chartXCount != chartXMax)
{
if (numCharts == 0)
{
chartX = ((chartW + chartPaddingX) * chartXCount) + 50;
chartY = ((chartH + chartPaddingY) * chartYCount) + 50;
}
else
{
chartX = ((chartW + chartPaddingX) * chartXCount) + 50;
}
chart.SetPosition(chartY, chartX);
chartXCount++;
}
else
{
chartX = ((chartW + chartPaddingX) * chartXCount) + 50;
chart.SetPosition(chartY, chartX);
chartYCount++;
resultsControlVar = 1;
}
numCharts++;
... DOING SOME OTHER BITS N BOBS ...
// INCREMENT Y VALUE
if (resultsControlVar == 1) // INCREMENT THE YPOS VALUE OF THE CHART
{
rowNum = rnStart;
rowNum = rowNum + 20;
rnStart = rowNum;
colNum = 2;
chartY = ((chartH + chartPaddingY) * chartYCount) + 50;
resultsControlVar = 0;
chartXCount = 0;
}
else // RESETS THE ROWNUM FOR DATA VALUES
{
rowNum = rnStart;
colNum = colNum + 6;
}
}