hello everyone.
i want to add some value to each of columns dynamic?
so i tried to make a some code to do this, but there is some problem.
i have made listview in Code, and i also have made each of columns dynamic like below.
ParameterValueCollection parameterCollection = new ParameterValueCollection();<-- this is ObservableCollection class
ParametersDisplayView parameterDisplayView = new ParametersDisplayView();
Thickness thickness = new Thickness();
thickness.Left = 5;
thickness.Top = 5;
thickness.Right = 0;
thickness.Bottom = 0;
parameterDisplayView.Margin = thickness;
parameterDisplayView.SelectionMode = SelectionMode.Single;
ScrollViewer scrollViewer = new ScrollViewer();
scrollViewer.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;
scrollViewer.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
scrollViewer.CanContentScroll = true;
parameterDisplayView.Name = "LogDisplayView";
parameterDisplayView.ItemsSource = parameterCollection;
VirtualizingStackPanel.SetIsVirtualizing(parameterDisplayView, true);
ScrollViewer.SetHorizontalScrollBarVisibility(parameterDisplayView, ScrollBarVisibility.Auto);
ScrollViewer.SetVerticalScrollBarVisibility(parameterDisplayView, ScrollBarVisibility.Auto);
ScrollViewer.SetCanContentScroll(parameterDisplayView, true);
parameterDisplayView.Background = (Brush)Application.Current.Resources["PanelGradientBrush"];
parameterDisplayView.ItemContainerStyle = (Style)Resources["ParametersEditListViewItemStyle"];
GridView gridView = new GridView();
gridView.AllowsColumnReorder = true;
GridViewColumn emptyColumn = new GridViewColumn();
emptyColumn.Width = 10;
emptyColumn.HeaderContainerStyle = (Style)Resources["FirstColumnGridViewColumnHeader"];
emptyColumn.CellTemplate = (DataTemplate)Resources["EmptyColumnTemplate"];
gridView.Columns.Add(emptyColumn);
SortListViewColumn sortColumnIndex = new SortListViewColumn();
sortColumnIndex.SetValue(SortListViewColumn.SortPropertyProperty, "Time");
sortColumnIndex.SetValue(SortListViewColumn.HeaderProperty, "Time");
sortColumnIndex.Width = 200;
sortColumnIndex.HeaderContainerStyle = (Style)Application.Current.Resources["ParametersGridViewColumnHeader"];
sortColumnIndex.CellTemplate = (DataTemplate)Resources["TimeColumnTemplate"];
gridView.Columns.Add(sortColumnIndex);
// This function will be called depends on items, so i have made each of columns
private void MakeParameterListViewHeader(ParametersDisplayView parameterDisplayView, GridView gridView, LogParameter logParameter)
{
SortListViewColumn sortColumnIndex = new SortListViewColumn();
sortColumnIndex.SetValue(SortListViewColumn.SortPropertyProperty, logParameter.ParameterName);
sortColumnIndex.SetValue(SortListViewColumn.HeaderProperty, logParameter.ParameterName);
sortColumnIndex.Width = 200;
sortColumnIndex.HeaderContainerStyle = (Style)Application.Current.Resources["ParametersGridViewColumnHeader"];
sortColumnIndex.CellTemplate = (DataTemplate)Resources["ParameterNameColumnTemplate"];
gridView.Columns.Add(sortColumnIndex);
}
<XAML>
<DataTemplate x:Key="EmptyColumnTemplate">
</DataTemplate>
<DataTemplate x:Key="TimeColumnTemplate">
<TextBlock Name="LogTime" HorizontalAlignment="Left" Text="{Binding Mode=OneTime,Path=LogTime}" Foreground="{DynamicResource FontColor}" Margin="5, 0, 0, 0" />
</DataTemplate>
<DataTemplate x:Key="ParameterNameColumnTemplate">
<TextBlock Name="ParameterValue" HorizontalAlignment="Left" Text="" Foreground="{DynamicResource FontColor}" Margin="5, 0, 0, 0" />
</DataTemplate>
after listview made with each of columns, i want to update each of columns with some value like below
parameterDisplayView.View = gridView;
var delParameters = (from Item in parameterCollection
where Item.LogTime == parameter.LogTime
select Item).Count();
if (delParameters == 0)
{
parameterCollection.Add(parameter);
AddLogParameterToListView(ref rowCount, parameterDisplayView, gridView, parameter); ==> i want to update each of columns from here.
}
private void AddLogParameterToListView(ref int rowCount,ParametersDisplayView parameterDisplayView, GridView gridView, LogParameter logParameter)
{
TextBlock tb = (TextBlock)GetElementFromCellTemplate(parameterDisplayView, 2, rowCount, "ParameterValue");==> The TextBlock has always null.(here is problem)
if (tb != null)
{
tb.Text = logParameter.LogTime;
rowCount++;
}
}
public FrameworkElement GetElementFromCellTemplate(ListView listView, Int32 column, Int32 row, String name)
{
if (row >= listView.Items.Count || row < 0)
{
throw new ArgumentOutOfRangeException("row");
}
GridView gridView = listView.View as GridView;
if (gridView == null) { return null; } if (column >= gridView.Columns.Count || column < 0)
{
throw new ArgumentOutOfRangeException("column");
}
ListViewItem item = listView.ItemContainerGenerator.ContainerFromItem(listView.Items[row]) as ListViewItem;
if (item != null)
{
GridViewRowPresenter rowPresenter = GetFrameworkElementByName<GridViewRowPresenter>(item);
if (rowPresenter != null)
{
ContentPresenter templatedParent = VisualTreeHelper.GetChild(rowPresenter, column) as ContentPresenter;
DataTemplate dataTemplate = gridView.Columns[column].CellTemplate;
if (dataTemplate != null && templatedParent != null)
{
return dataTemplate.FindName(name, templatedParent) as FrameworkElement;
}
}
} return null;
}
How can i do to solve this problem?
i want to make a listview with some function like below
Time | Column1 | Column2 | ------- | Column n
Time | Value | Value | ------ | Value
A number of column will be changed depends on log Data.
i need this kind of listview.
Thank you ...
lightdoll
