private void SetPropertyValue(object model, PropertyInfo property, int rowIndex, List <CellValue> columnTitleCells)
{
// DisplayName -> columnTitle -> columnIndex
object[] attributes = property.GetCustomAttributes(typeof(DisplayNameAttribute), true);
string displayName = ((DisplayNameAttribute)attributes[0]).DisplayName;
CellValue cell = columnTitleCells.FirstOrDefault(c => c.Value.ToString().Equals(displayName));
if (cell == null)
{
return;
}
int colIndex = cell.Col;
// 查找对应单元格的数据
object value = CellValueCollection.FirstOrDefault(c => c.Row == rowIndex && c.Col == colIndex).Value;
// 格式转换
object propertyValue = null;
if (property.PropertyType == typeof(Guid))
{
propertyValue = new Guid(value.ToString());
}
else
{
propertyValue = Convert.ChangeType(value, property.PropertyType);
}
property.SetValue(model, propertyValue, null);
}
/// <summary>
/// 读取报表标题（通常在[第一行，第一列]）
/// </summary>
/// <returns>报表标题</returns>
public string GetExcelTitle()
{
if (!HasTitle)
{
return(string.Empty);
}
int titleRowIndex = MinRowIndex; // 标题行
return(CellValueCollection.FirstOrDefault(c => c.Row == MinRowIndex && c.Col == MinColIndex).Value.ToString());
}
/// <summary>
/// 将Excel中的“数据表”部分，读取到泛型集合中
/// </summary>
/// <typeparam name="T">集合元素的类型</typeparam>
/// <returns>泛型集合</returns>
public List <T> Read <T>() where T : class, new()
{
// 属性集合
IEnumerable <PropertyInfo> propertyArray = typeof(T).GetProperties().Where(p => p.GetCustomAttributes(typeof(DisplayNameAttribute), true).Length > 0);
// 列标题集合
List <CellValue> columnTitleCells = CellValueCollection.Where(c => c.Row == ColumnRowIndex).ToList();
// 遍历数据行
List <T> modelList = new List <T>();
for (int rowIndex = DataRowIndex; rowIndex <= MaxRowIndex; rowIndex++)
{
object model = Activator.CreateInstance(typeof(T));
foreach (PropertyInfo property in propertyArray)
{
SetPropertyValue(model, property, rowIndex, columnTitleCells);
}
modelList.Add(model as T);
}
return(modelList);
}
