How to do binding programmically?
- by user175908
Hello,
Could anyone identify the problem in this code? (I'm kinda newbie in WPF bindings.)
This code executes after chart is loaded when I click a button:
I get this error:
Update: I dont get that error anymore. Thanks to Tomas.
Now no error occur but chart looks completely blank (no columns)
Update: Code now looks like this:
// create a very simple DataSet
var dataSet = new DataSet("MyDataSet");
var table = dataSet.Tables.Add("MyTable");
table.Columns.Add("Name");
table.Columns.Add("Price");
table.Rows.Add("Brick", 1.5d);
table.Rows.Add("Soap", 4.99d);
table.Rows.Add("Comic Book", 0.99d);
// chart series
var series = new ColumnSeries()
{
IndependentValueBinding = new Binding("[Name]"), // How to deal with
DependentValueBinding = new Binding("[Price]"), // these two?
ItemsSource = dataSet.Tables[0].DefaultView // or maybe I do mistake here?
};
// ---------- set additional binding as adviced ------------------
series.SetBinding(ColumnSeries.ItemsSourceProperty, new Binding());
// chart stuff
MyChart.Series.Add(series);
MyChart.Title = "Names 'n Prices";
// some code to remove legend
var style = new Style(typeof(Control));
style.Setters.Add(new Setter(LegendItem.TemplateProperty, null));
MyChart.LegendStyle = style;
XAML:
<Window x:Class="BindingzTest.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="606" Width="988" xmlns:charting="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit">
<Grid Name="LayoutRoot">
<charting:Chart Name="MyChart" Margin="0,0,573,0" Height="289" VerticalAlignment="Top" />
<Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="272,361,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="chart1_Loaded" />
</Grid>
Thanks for help in advance once more.
