a nullable exception occure using Frame.NavigateTo

vikash kumar tiwari

11y1.4kC#

i am getting a nullable exception when try to navigate in page with class object data using Frame.NavigateTo in visual studio 2013 window store application with c#/xaml

my some code part here

private void Button_Click_3(object sender, RoutedEventArgs e)

{

adress adr = new adress();

ComboBoxItem cnt = (ComboBoxItem)combobox_cnt.SelectedItem;

adr.country = cnt.Content.ToString();

ComboBoxItem st = (ComboBoxItem)combobox_st.SelectedItem;

adr.state = st.Content.ToString();

citydata ct = (citydata)combobox_ct.SelectedItem;

adr.city = ct.city.ToString();

//this.Content = new ResultPage1();

this.Frame.Navigate(typeof(ResultPage1),adr);

}

Frame is initialize to null at the time of debugging

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

vikash kumar tiwari11y ago
thaks for reply,
but by this i navigate to other page .but ahat about my data,

my actual task is move to other page with class data

plz suggest
Khan Abrar Ahmed11y ago
Hi try this code
private void Button_Click_3(object sender, RoutedEventArgs e)
{

adress adr = new adress();
ComboBoxItem cnt = (ComboBoxItem)combobox_cnt.SelectedItem;
adr.country = cnt.Content.ToString();
ComboBoxItem st = (ComboBoxItem)combobox_st.SelectedItem;
adr.state = st.Content.ToString();
citydata ct = (citydata)combobox_ct.SelectedItem;
adr.city = ct.city.ToString();
//this.Content = new ResultPage1();

Window.Current.Content = new ResultPage1()

}