在xaml页面中传递值 [英] Passing values in xaml pages

问题描述

试图将xaml页面中的值传递给另一个。使用下面的代码帮助



Page 1

  private   void  btnEmailLogin_Click（ object  sender，RoutedEventArgs e）
 {
  string  emailAddress = txtEmailAddress.Text; 
  string  txtPasswords = txtPassword.Text; 
 NavigationService.Navigate（ new  Uri（ string  .Format（  / EmailSender.xaml？emailAddress = {0}& txtPasswords = {1}，emailAddress，txtPasswords），UriKind.Relative） ）; 
 
 
} 

Page 2

  if （ this  .NavigationContext.QueryString.ContainsKey（  emailAddress）||  this  .NavigationContext.QueryString.ContainsKey（  password））
 {
 此 .txtFrom.Text = 此 .NavigationContext.QueryString [  EMAILADDRESS]; 
} 

我在if语句中得到nullRefrenceException ...需要帮助

解决方案

http://social.msdn.microsoft.com/Forums/windowsapps/en-美国/ 4457ffd6-944e-4ee9-a8c4-fd36c6a98a32 /如何对transwer-A-图像一个XAML到另一个-XAML的同时单击-A-按钮功能于Metro风格，使用-C [ ^ ]



我认为以上链接可以帮到你。



谢谢，

Bilaal

Been atempting to pass values in xaml page to another.Help with the code below

Page 1

private void btnEmailLogin_Click(object sender, RoutedEventArgs e)
       {
            string emailAddress = txtEmailAddress.Text;
           string txtPasswords = txtPassword.Text;
           NavigationService.Navigate(new Uri(string.Format("/EmailSender.xaml?emailAddress={0}&txtPasswords={1}", emailAddress, txtPasswords), UriKind.Relative));


       }

Page 2

if (this.NavigationContext.QueryString.ContainsKey("emailAddress") || this.NavigationContext.QueryString.ContainsKey("password"))
            {
               this.txtFrom.Text = this.NavigationContext.QueryString["emailAddress"];
                       }

I get a nullRefrenceException in the if statement...Need help

解决方案

http://social.msdn.microsoft.com/Forums/windowsapps/en-US/4457ffd6-944e-4ee9-a8c4-fd36c6a98a32/how-to-transwer-a-image-one-xaml-to-another-xaml-while-clicking-a-button-in-metro-style-using-c[^]

I think the above link will help you.

Thanks,
Bilaal

这篇关于在xaml页面中传递值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！