c# - while binding DataGrid WPF

i trying bind observablecollection datagrid.

code

private void loaddata_loaded(object sender, routedeventargs e) {         observablecollection<loaddata> loaddataset = new observablecollection<loaddata>();         var items = new list<loaddata>();          loaddata load = new loaddata("1", "1", "1", "1");         loaddataset.add(load);         items.add(load);          loaddatagrid.itemssource = items; } 

in mainwindow

public mainwindow() {        initializecomponent();        datacontext = this; } 

in xaml

datagrid name="loaddatagrid" horizontalalignment="left" margin="373,83,0,0" verticalalignment="top" height="64" width="661" loaded="loaddata_loaded" / 

then exception

an unhandled exception of type "system.stackoverflowexception" occurred in xxxx.exe

why not working ?

while can't imagine have done wrong, can show how right. create public property collection:

private observablecollection<loaddata> items;  public observablecollection<loaddata> items {     { return items; }     set { items = value; notifypropertychanged("items"); } }  // implement inotifypropertychanged interface here!! 

then data bind collection property datagrid.itemssource property:

<datagrid name="loaddatagrid" itemssource="{binding items}" horizontalalignment="left"      margin="373,83,0,0" verticalalignment="top" height="64" width="661" /> 

then finally, populate collection:

items = new observablecollection<loaddata>(); loaddata load = new loaddata("1", "1", "1", "1"); loaddataset.add(load); items.add(load);