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POWPF Update from datagrid
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  1. POWPF Update from datagrid
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    copied!<p>I have a datagrid in a WPF populated from a csv file. This is done with Linq and populating the datagrid via CollectionViewSource.Source.</p> <p>The requirement is for any updates/changes made to the data in the datagrid to then be saved back into the csv.</p> <p>I need to know how to save any changes to the data? I've been playing around with some of the events and datacontext's and such like but nothing works yet.</p> <p>I apologise if this is a beginner's type question. The move from windows applications to WPF is a steep learning curve(for me at least). I've just populated from an array for now while I try and figure it out. Basically just want to get the data back out again, save it as var.</p> <pre><code> System.Windows.Data.CollectionViewSource personViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("personViewSource"))); List&lt;Person&gt; T = new List&lt;Person&gt;(); Person p = new Person(); string[] str = new string[] { "Stacey", "Olivia", "Dylan", "Lauryn", "Beth", "Caitlin" }; var data = from s in str select s; Person pers; foreach (var d in data) { pers = new Person(); pers.Name = d; pers.Age = 22; T.Add(pers); } personViewSource.Source = T; </code></pre> <p>The xaml: </p> <pre><code>&lt;Window x:Class="WpfApplication4.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded" Name="win1" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:my="clr-namespace:WpfApplication4"&gt; &lt;Window.Resources&gt; &lt;CollectionViewSource x:Key="personViewSource" d:DesignSource="{d:DesignInstance my:Person, CreateList=True}" /&gt; &lt;/Window.Resources&gt; &lt;StackPanel Width="369" Height="230" DataContext="{StaticResource personViewSource}"&gt; &lt;DataGrid AutoGenerateColumns="False" EnableRowVirtualization="True" ItemsSource="{Binding}" Name="personDataGrid" RowDetailsVisibilityMode="VisibleWhenSelected" Width="88" HorizontalAlignment="Left" BorderThickness="4" Background="#FFF8C5C5" SelectionChanged="personDataGrid_SelectionChanged" TextInput="personDataGrid_TextInput" RowEditEnding="personDataGrid_RowEditEnding" TargetUpdated="personDataGrid_TargetUpdated"&gt; &lt;DataGrid.Columns&gt; &lt;DataGridTextColumn x:Name="nameColumn" Binding="{Binding Path=Name, Mode=TwoWay, NotifyOnTargetUpdated=True}" Header="Name" Width="SizeToHeader" /&gt; &lt;DataGridTextColumn x:Name="ageColumn" Binding="{Binding Path=Age}" Header="Age" Width="SizeToHeader" Foreground="#FFC14040" /&gt; &lt;/DataGrid.Columns&gt; &lt;/DataGrid&gt; &lt;/StackPanel&gt; </code></pre> <p></p> <p>Thanks</p>
 

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