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我正在将我的应用程序从Windows窗体移植到WPF。我发现datagrid只能通过WPF Toolkit获得。不过,我有一些性能问题。这可能是因为在Windows窗体中执行正常的东西不能在wpf中执行,因为它必须以不同的方式实现。总之,我这样做是这样的:wpf工具包datagrid性能
// XAML
<toolkit:DataGrid x:Name="dataGrid" ItemsSource="{Binding Path=.}"/>
// C#
DataTable dataTable = new DataTable();
MyViewModel viewModel = new MyViewModel();
this.dataGrid.AutoGenerateColumns = false;
this.dataGrid.CanUserAddRows = false;
this.dataGrid.CanUserDeleteRows = false;
this.dataGrid.CanUserReorderColumns = true;
this.dataGrid.CanUserResizeColumns = true;
this.dataGrid.CanUserResizeRows = false;
this.dataGrid.CanUserSortColumns = true;
this.dataGrid.IsReadOnly = true;
this.dataGrid.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
this.dataGrid.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;
this.dataGrid.ColumnHeaderHeight = 18;
this.dataGrid.RowHeight = 18;
this.dataGrid.DataContext = vm.dataGrid;
List<string> s = new List<string>();
for (int i = 0; i < 80; ++i)
{
s.Add("col" + i);
}
for (int i = 0; i < s.Count; ++i)
{
dataTable.Columns.Add(new DataColumn(s[i], typeof(string)));
Binding items = new Binding();
PropertyPath path = new PropertyPath(dataTable.Columns[i].ColumnName);
items.Path = path;
DataGridColumn dc = new DataGridTextColumn()
{
Header = dataTable.Columns[i].ColumnName,
Width=70,
Binding = items
};
this.dataGrid.Columns.Add(dc);
}
viewModel.dataGrid = dataTable;
this.dataGrid.DataContext = viewModel.dataGrid;
for (int i = 0; i < 1000; ++i)
{
var row = dataTable.NewRow();
for (int j = 0; j < s.Count; ++j)
{
row[s[j]] = "text" + s[j] + j;
}
dataTable.Rows.Add(row);
}
以上是简单地通过结合各头产生相同数量的列的样品。 当这加载时,我得到所有元素正确显示,但滚动非常缓慢。我知道有人可能会说我呈现了80列和1000个元素,但我在窗体表单应用程序中显示了超过10000个,并且没有任何问题。 与Windows窗体的唯一区别是,而不是使用绑定,我每次更新它时将dataGridView的dataSource设置为DataTable。 任何想法?我究竟做错了什么?