CODEWITHSUNDEEP
c#wpfdatagrid
TheSpy
TheSpy

Reputation: 265

WPF datagrid Binding error?

I'm working on networking based application the application connects with a networking device using C# the front end is on WPF .The problem is i want to extract data after running particular command and after extraction i want it to display on DataGrid.The data is extracting correctly using regex as i need but the part that i want to show on Datagrid is not showing however it is showing on console correctly .Code is:

public class IPMAC
{
    public string ip { get; set; }
    public string mac { get; set; }
}

List<IPMAC> ipmac = new List<IPMAC>();
string pattern = @"(F8-F7-D3-00\S+)";
MatchCollection matches = Regex.Matches(stringData, pattern);

foreach (Match match in matches)
{
    Console.WriteLine("Hardware Address : {0}", match.Groups[1].Value);
    ipmac.Add(new IPMAC(){mac=match.Groups[1].Value});
}
string pattern2 = @"(192.168.1\S+)";
MatchCollection matchesIP = Regex.Matches(stringData, pattern2);

foreach (Match match in matchesIP)
{
    Console.WriteLine("IP Address : {0}", match.Groups[1].Value);
    ipmac.Add(new IPMAC() { ip = match.Groups[1].Value });

XAML is :

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="250"/>
        <RowDefinition/>
    </Grid.RowDefinitions>
    <DataGrid Name="dg" Grid.Row="0" Height="250" AutoGenerateColumns="False" >     
        <DataGrid.Columns>
            <DataGridTextColumn Header="Mac Addresses" Binding="{Binding Path=mac}"/>
            <DataGridTextColumn Header="IP Addresses" Binding="{Binding Path=ip}"/>
        </DataGrid.Columns>
    </DataGrid>

In short I don't understand how to show output on datagrid as it is showing on Console .Please help??

Upvotes: 2

Views: 1187

Answers (1)

har07
har07

Reputation: 89285

Simplest way to display your list of IPMAC in DataGrid is, by setting ItemsSource from code after the list has been populated :

dg.ItemsSource = ipmac;

or you can use DataBinding by following below steps :

  • set up DataContext properly. Because data binding resolves binding path from current data context.
  • declare ipmac as public property of type ObservableCollection. ObservableCollection has built in mechanism to notify UI to refresh whenever item added to or removed from collection. And data binding can't work with member/field.
  • bind ItemsSource to ipmac property.

Snippet demonstrating above steps :

//declare ipmac as public property
public ObservableCollection<IPMAC> ipmac { get; set; } 

//In constructor : initialize ipmac and set up DataContext
ipmac = new ObservableCollection<IPMAC>();
this.DataContext = this;

//In XAML : bind ItemsSource to ipmac
<DataGrid ItemSource="{Binding ipmac}" Name="dg" ... />

Upvotes: 1

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