public static string GetDataValue(object dataItem, string names)
{
if (dataItem == null)
{
return(string.Empty);
}
if (string.IsNullOrWhiteSpace(names))
{
return(string.Empty);
}
string result = string.Empty;
string[] keys = names.Split(',');
foreach (string key in keys)
{
if (string.IsNullOrWhiteSpace(key))
{
continue;
}
result += string.Format("{0},", BindingUtility.GetBindingValue(key.Trim(), dataItem, null));
}
if (string.IsNullOrWhiteSpace(result))
{
return(string.Empty);
}
else
{
return(result.TrimEnd(','));
}
}
private void SetBinding()
{
if (_binding == null || this.DataSource == null)
{
return;
}
IEnumerable dataSource = this.DataSource as IEnumerable;
if (dataSource == null)
{
return;
}
if (this.Type == ChartType.Pie)
{
foreach (var dataItem in dataSource)
{
this.Points.Add(new ChartPoint()
{
Title = BindingUtility.FormatBindingValue(_binding.TitleMember, dataItem),
Value = Zongsoft.Common.Convert.ConvertValue <decimal>(BindingUtility.GetBindingValue(_binding.ValueMember, dataItem)),
});
}
}
else
{
Dictionary <string, List <decimal> > lines = new Dictionary <string, List <decimal> >(StringComparer.OrdinalIgnoreCase);
foreach (var dataItem in dataSource)
{
string key = BindingUtility.FormatBindingValue(_binding.TitleMember, dataItem);
List <decimal> values;
decimal v = Zongsoft.Common.Convert.ConvertValue <decimal>(BindingUtility.GetBindingValue(_binding.ValueMember, dataItem));
if (lines.TryGetValue(key, out values))
{
values.Add(v);
}
else
{
values = new List <decimal>();
values.Add(v);
lines[key] = values;
}
if (!string.IsNullOrWhiteSpace(_binding.SerieMember))
{
string serie = BindingUtility.FormatBindingValue(_binding.SerieMember, dataItem);
if (!this.Series.Contains(serie))
{
this.Series.Add(new ChartSerie()
{
Name = serie,
Title = serie,
});
}
}
}
foreach (var entry in lines)
{
this.Lines.Add(new ChartLine()
{
Name = entry.Key,
Title = entry.Key,
Values = entry.Value.ToArray(),
});
}
}
}