public PropertyConfiguration()
{
CellConfig = new CellConfig();
}
internal static IWorkbook ToWorkbook <T>(this IEnumerable <T> source, string excelFile, string sheetName)
{
var properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty);
bool fluentConfigEnabled = false;
IFluentConfiguration fluentConfig;
if (ExcelHelper.Setting.FluentConfigs.TryGetValue(typeof(T), out fluentConfig))
{
fluentConfigEnabled = true;
}
var cellConfigs = new CellConfig[properties.Length];
for (var j = 0; j < properties.Length; j++)
{
var property = properties[j];
PropertyConfiguration pc;
if (fluentConfigEnabled && fluentConfig.PropertyConfigs.TryGetValue(property, out pc))
{
cellConfigs[j] = pc.CellConfig;
}
else
{
var attrs = property.GetCustomAttributes(typeof(ColumnAttribute), true) as ColumnAttribute[];
if (attrs != null && attrs.Length > 0)
{
cellConfigs[j] = attrs[0].CellConfig;
}
else
{
cellConfigs[j] = null;
}
}
}
var workbook = InitializeWorkbook(excelFile);
var sheet = workbook.CreateSheet(sheetName);
var cellStyles = new Dictionary <int, ICellStyle>();
var titleStyle = workbook.CreateCellStyle();
titleStyle.Alignment = HorizontalAlignment.Center;
titleStyle.VerticalAlignment = VerticalAlignment.Center;
titleStyle.FillPattern = FillPattern.SolidForeground;
titleStyle.BorderBottom = BorderStyle.Thin;
titleStyle.BorderLeft = BorderStyle.Thin;
titleStyle.BorderRight = BorderStyle.Thin;
titleStyle.FillForegroundColor = HSSFColor.Lime.Index;
var titleRow = sheet.CreateRow(0);
var rowIndex = 1;
foreach (var item in source)
{
var row = sheet.CreateRow(rowIndex);
for (var i = 0; i < properties.Length; i++)
{
var property = properties[i];
int index = i;
var config = cellConfigs[i];
if (config != null)
{
if (config.IsIgnored)
{
continue;
}
index = config.Index;
}
if (rowIndex == 1)
{
var title = property.Name;
if (!string.IsNullOrEmpty(config.Title))
{
title = config.Title;
}
if (!string.IsNullOrEmpty(config.Formatter))
{
try
{
var style = workbook.CreateCellStyle();
var dataFormat = workbook.CreateDataFormat();
style.DataFormat = dataFormat.GetFormat(config.Formatter);
cellStyles[i] = style;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
}
var titleCell = titleRow.CreateCell(index);
titleCell.CellStyle = titleStyle;
titleCell.SetCellValue(title);
}
var value = property.GetValue(item, null);
if (value == null)
{
continue;
}
ICell cell = row.CreateCell(index, CellType.Numeric);
ICellStyle cellStyle;
if (cellStyles.TryGetValue(i, out cellStyle))
{
cell.CellStyle = cellStyle;
var unwrapType = property.PropertyType.UnwrapNullableType();
if (unwrapType == typeof(bool))
{
cell.SetCellValue((bool)value);
}
else if (unwrapType == typeof(DateTime))
{
cell.SetCellValue(Convert.ToDateTime(value));
}
else if (unwrapType == typeof(double))
{
cell.SetCellValue(Convert.ToDouble(value));
}
else if (value is IFormattable)
{
var fv = value as IFormattable;
cell.SetCellValue(fv.ToString(config.Formatter, CultureInfo.CurrentCulture));
}
else
{
cell.SetCellValue(value.ToString());
}
}
else if (value is IFormattable)
{
var fv = value as IFormattable;
cell.SetCellValue(fv.ToString(config.Formatter, CultureInfo.CurrentCulture));
}
else
{
cell.SetCellValue(value.ToString());
}
}
rowIndex++;
}
int recordIndex = 0;
var mergableConfigs = cellConfigs.Where(c => c != null && c.AllowMerge).ToList();
if (mergableConfigs.Any())
{
var vStyle = workbook.CreateCellStyle();
vStyle.VerticalAlignment = VerticalAlignment.Center;
foreach (var config in mergableConfigs)
{
recordIndex++;
object previous = null;
int rowspan = 0, row = 1;
for (row = 1; row < rowIndex; row++)
{
var value = sheet.GetRow(row).GetCellValue(config.Index);
if (object.Equals(previous, value) && value != null)
{
rowspan++;
}
else
{
if (rowspan > 1)
{
int cellIndex = sheet.GetRow(row - rowspan).Cells.Count - 1;
if (config.Index <= cellIndex)
{
sheet.GetRow(row - rowspan).Cells[config.Index].CellStyle = vStyle;
sheet.AddMergedRegion(new CellRangeAddress(row - rowspan, row - 1, config.Index, config.Index));
}
}
rowspan = 1;
previous = value;
}
}
if (rowspan > 1)
{
int cellIndex = sheet.GetRow(row - rowspan).Cells.Count - 1;
if (config.Index <= cellIndex)
{
sheet.GetRow(row - rowspan).Cells[config.Index].CellStyle = vStyle;
sheet.AddMergedRegion(new CellRangeAddress(row - rowspan, row - 1, config.Index, config.Index));
}
}
}
}
if (rowIndex > 1)
{
var statistics = new List <StatisticsConfig>();
var filterConfigs = new List <FilterConfig>();
var freezeConfigs = new List <FreezeConfig>();
if (fluentConfigEnabled)
{
statistics.AddRange(fluentConfig.StatisticsConfigs);
freezeConfigs.AddRange(fluentConfig.FreezeConfigs);
filterConfigs.AddRange(fluentConfig.FilterConfigs);
}
else
{
var attributes = typeof(T).GetCustomAttributes(typeof(StatisticsAttribute), true) as StatisticsAttribute[];
if (attributes != null && attributes.Length > 0)
{
foreach (var item in attributes)
{
statistics.Add(item.StatisticsConfig);
}
}
var freezes = typeof(T).GetCustomAttributes(typeof(FreezeAttribute), true) as FreezeAttribute[];
if (freezes != null && freezes.Length > 0)
{
foreach (var item in freezes)
{
freezeConfigs.Add(item.FreezeConfig);
}
}
var filters = typeof(T).GetCustomAttributes(typeof(FilterAttribute), true) as FilterAttribute[];
if (filters != null && filters.Length > 0)
{
foreach (var item in filters)
{
filterConfigs.Add(item.FilterConfig);
}
}
}
foreach (var item in statistics)
{
var lastRow = sheet.CreateRow(rowIndex);
var cell = lastRow.CreateCell(0);
cell.SetCellValue(item.Name);
foreach (var column in item.Columns)
{
cell = lastRow.CreateCell(column);
cell.CellFormula = $"{item.Formula}({GetCellPosition(1, column)}:{GetCellPosition(rowIndex - 1, column)})";
}
rowIndex++;
}
foreach (var freeze in freezeConfigs)
{
sheet.CreateFreezePane(freeze.ColSplit, freeze.RowSplit, freeze.LeftMostColumn, freeze.TopRow);
}
foreach (var filter in filterConfigs)
{
sheet.SetAutoFilter(new CellRangeAddress(filter.FirstRow, filter.LastRow ?? rowIndex, filter.FirstCol, filter.LastCol));
}
}
for (int i = 0; i < properties.Length; i++)
{
//sheet.AutoSizeColumn(i);
}
return(workbook);
}
/// <summary>
/// <see cref="ColumnAttribute"/>
/// </summary>
public ColumnAttribute()
{
CellConfig = new CellConfig();
}
/// <summary>
/// 加载Excel文件数据到IEnumerable <see cref="IEnumerable{T}"/>
/// /// </summary>
public static IEnumerable <T> Load <T>(string excelFile, Stream stream = null, int startRow = 1, int sheetIndex = 0, ValueConverter valueConverter = null) where T : class, new()
{
if (stream == null && !File.Exists(excelFile))
{
throw new FileNotFoundException();
}
var workbook = stream != null?InitializeWorkbook(stream, excelFile) : InitializeWorkbook(excelFile);
var sheet = workbook.GetSheetAt(sheetIndex);
var properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty);
bool fluentConfigEnabled = false;
if (Setting.FluentConfigs.TryGetValue(typeof(T), out IFluentConfiguration fluentConfig))
{
fluentConfigEnabled = true;
}
var cellConfigs = new CellConfig[properties.Length];
for (var j = 0; j < properties.Length; j++)
{
var property = properties[j];
if (fluentConfigEnabled && fluentConfig.PropertyConfigs.TryGetValue(property, out PropertyConfiguration pc))
{
cellConfigs[j] = pc.CellConfig;
}
else
{
#pragma warning disable IDE0019 // 使用模式匹配
ColumnAttribute[] attrs = property.GetCustomAttributes(typeof(ColumnAttribute), true) as ColumnAttribute[];
#pragma warning restore IDE0019 // 使用模式匹配
if (attrs != null && attrs.Length > 0)
{
cellConfigs[j] = attrs[0].CellConfig;
}
else
{
cellConfigs[j] = null;
}
}
}
var statistics = new List <StatisticsConfig>();
if (fluentConfigEnabled)
{
statistics.AddRange(fluentConfig.StatisticsConfigs);
}
else
{
#pragma warning disable IDE0019 // 使用模式匹配
StatisticsAttribute[] attributes = typeof(T).GetCustomAttributes(typeof(StatisticsAttribute), true) as StatisticsAttribute[];
#pragma warning restore IDE0019 // 使用模式匹配
if (attributes != null && attributes.Length > 0)
{
foreach (var item in attributes)
{
statistics.Add(item.StatisticsConfig);
}
}
}
var list = new List <T>();
int idx = 0;
IRow headerRow = null;
var rows = sheet.GetRowEnumerator();
while (rows.MoveNext())
{
var row = rows.Current as IRow;
if (idx == 0)
{
headerRow = row;
}
idx++;
if (row.RowNum < startRow)
{
continue;
}
var item = new T();
var itemIsValid = true;
for (int i = 0; i < properties.Length; i++)
{
var prop = properties[i];
int index = i;
var config = cellConfigs[i];
if (config != null)
{
if (!config.IsIgnored)
{
index = config.Index;
if (index < 0 && config.AutoIndex && !string.IsNullOrEmpty(config.Title))
{
foreach (var cell in headerRow.Cells)
{
if (!string.IsNullOrEmpty(cell.StringCellValue))
{
if (cell.StringCellValue.Equals(config.Title, StringComparison.InvariantCultureIgnoreCase))
{
index = cell.ColumnIndex;
config.Index = index;
break;
}
}
}
}
if (index < 0)
{
throw new ApplicationException("未设置Excel起始索引index，或是autoIndex");
}
}
var value = row.GetCellValue(index);
if (valueConverter != null)
{
value = valueConverter(row.RowNum, index, value);
}
if (value == null)
{
continue;
}
if (idx > startRow + 1 && index == 0 &&
statistics.Any(s => s.Name.Equals(value.ToString(), StringComparison.InvariantCultureIgnoreCase)))
{
var st = statistics.FirstOrDefault(s => s.Name.Equals(value.ToString(), StringComparison.InvariantCultureIgnoreCase));
var formula = row.GetCellValue(st.Columns.First()).ToString();
if (formula.StartsWith(st.Formula, StringComparison.InvariantCultureIgnoreCase))
{
itemIsValid = false;
break;
}
}
var propType = Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType;
var safeValue = Convert.ChangeType(value, propType, CultureInfo.CurrentCulture);
prop.SetValue(item, safeValue, null);
}
}
if (itemIsValid)
{
list.Add(item);
}
}
return(list);
}
