can not add rows in datagird in wpf

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Hi Everyone.....
I want to add rows dynamically in datagrid in WPF
Is it right ?

C#

dataGrid1.Items.Add(object newitem);

because in my program actually rows added but values are not shown ...means blank rows..only number of lines are incremented.

Thank You

Posted 17-Sep-12 21:18pm

krushna chandra jena

Updated 17-Sep-12 21:20pm

Kenneth Haugland

v2

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[no name] 18-Sep-12 9:46am

You might want to show the code where you are actually adding values to the row

2 solutions

Solution 1

Rather than adding new objects to the ".items" collection you may be better off taking a databinding approach. By sounds of things you are in fact adding the row successfully, but haven't told the datagrid how it should display the data in that row (using a data template, for example). Check out this tutorial for more info: http://wpftutorial.net/DataGrid.html

If this is not the case then we'll need to see some code, preferably both XAML & C#.

Hope that helps.

Posted 18-Sep-12 13:15pm

Adam David Hill

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krushna chandra jena 19-Sep-12 6:05am

here i can not apply data binding approach. Please provide another solution ....

Adam David Hill 19-Sep-12 6:06am

Could you explain why data-binding won't work? Perhaps show some surrounding code?

krushna chandra jena 19-Sep-12 7:41am

actually i am new in WPF ,can not implement such type of codes.
i want to show all temporary files in one datagrid .

my code is

FileInfo[] files = new DirectoryInfo(System.IO.Path.GetTempPath()).GetFiles();
foreach (FileInfo fi in files)
{
if (fi != null)
{
//here i want to add files(as rows ) in datagrid
}
}

which code is needed to bind rows in datagrid dynamically ? please help..

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Adam David Hill · Accepted Answer · 2012-09-19T03:09:00

Okay, here's a fully working example. Note that I'm expressing which columns I want to display, and how, in the XAML.

The C# bit:

C#

FileInfo[] files = new DirectoryInfo(System.IO.Path.GetTempPath()).GetFiles();
foreach (FileInfo fi in files)
{
    if (fi != null)
    {
        dataGrid1.Items.Add(fi);
    }
}

The XAML bit:

XML

<DataGrid x:Name="dataGrid1">
    <DataGrid.Columns>
        <DataGridTemplateColumn Header="Name">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
        <DataGridTemplateColumn Header="DirectoryName">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding DirectoryName}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

Please mark as the answer if that helps.