private void FilterString(string propName, string[] values)
{
var removeItems = new List <object>();
foreach (var item in Items)
{
if (values.FirstOrDefault(
p => ((string)RowType.GetProperty(propName).GetValue(item))?.Contains(p) ?? false) == null)
{
removeItems.Add(item);
}
}
removeItems.ForEach(p => Items.Remove(p));
}
protected override void ApplyDynamicColumns(DependencyPropertyChangedEventArgs e)
{
if (!(e.NewValue is DataGridCloumnsCollection newColumns))
{
return;
}
Columns.Clear();
colTypes.Clear();
fstringModels.Clear();
fzModels.Clear();
fdModels.Clear();
foreach (var col in newColumns)
{
if (RowType == null)
{
Columns.Add(col);
continue;
}
if (!(col is DataGridTextColumn textColumn))
{
Columns.Add(col);
continue;
}
if (!(textColumn.Binding is Binding colBinding))
{
Columns.Add(col);
continue;
}
if (colBinding.Path == null)
{
Columns.Add(col);
continue;
}
var prop = RowType.GetProperty(colBinding.Path.Path);
if (prop == null)
{
Columns.Add(col);
continue;
}
//当前仅支持三种类型的过滤;
if (prop.PropertyType == typeof(DateTime?) ||
prop.PropertyType == typeof(string) ||
prop.PropertyType == typeof(long)
)
{
if (!(col.Header is string headerText))
{
Columns.Add(col);
continue;
}
var headerControl = new FilterHeader {
PropertyType = prop.PropertyType,
PropertyName = prop.Name
};
headerControl.FilterRequired += OnFilterRequired;
if (prop != null)
{
colTypes.Add(prop.Name, prop.PropertyType);
}
if (prop.PropertyType == typeof(string))
{
fstringModels.Add(prop.Name, null);
}
col.Header = headerControl;
}
Columns.Add(col);
}
}
