How to display a certain number of rows in a DataGrid? (C#/WPF)

Question

How to display a certain number of rows in a DataGrid? For example, only the first 15?

DataTable has dynamic data. I need to display the first 15 lines. And the rest should also be present, but not displayed.

<DataGrid x:Name="CsvGrid" ColumnWidth="*" ItemsSource="{Binding csvTable}">


DataTable csvTable = new DataTable();
...
CsvGrid.ItemsSource = csvTable.DefaultView;

You should check these links https://stackoverflow.com/questions/4661998/simple-way-to-display-row-numbers-on-wpf-datagrid https://stackoverflow.com/questions/15042832/how-to-display-a-large-number-of-rows-in-a-datagrid — EasyHax, Jun 12 '19 at 15:38
`CsvGrid.ItemsSource = csvTable.DefaultView.Cast().Take(10);` — 15ee8f99-57ff-4f92-890c-b56153, Jun 12 '19 at 15:42
@EdPlunkett But since I do not receive all the data, I need to hide them. — MiT, Jun 12 '19 at 15:45
@MiT I'm sorry, but I don't know what that means. What do you need to hide? — 15ee8f99-57ff-4f92-890c-b56153, Jun 12 '19 at 15:46
@EdPlunkett I need to display the first 15 lines. And the rest should also be present, but not displayed. — MiT, Jun 12 '19 at 15:49
@MiT Put them all in a list. Make the list a private field of your class called `_csvRowList` or something. When you want to show all of them, use the whole list. When want the top 15, assign `_csvRowList.Take(15)` to ItemsSource. You'd be better off doing it with a Binding, but one thing at a time. — 15ee8f99-57ff-4f92-890c-b56153, Jun 12 '19 at 15:52
@MiT Why don't you add that important requirement to your question? Also, please add any other important requirements you haven't mentioned, if any. — 15ee8f99-57ff-4f92-890c-b56153, Jun 12 '19 at 16:09

score 0 · Accepted Answer · answered Jun 12 '19 at 16:31

<DataGrid x:Name="CsvGrid" ColumnWidth="*" LoadingRow="CsvGrid_LoadingRow" ItemsSource="{Binding csvTable}" />

private void CsvGrid_LoadingRow(object sender, DataGridRowEventArgs e)
{
    e.Row.Header = (e.Row.GetIndex()+1).ToString();
    if(e.Row.GetIndex() > _showRows - 1) e.Row.Visibility = Visibility.Hidden;
}

How to display a certain number of rows in a DataGrid? (C#/WPF)

1 Answers1