如何访问位于DataTemplate标签的文本框控件 <phone:PanoramaItem.HeaderTemplate> 从代码开始-在后面（MainPage.xaml.cs）

Question

i have a textbox located in MainPage.xaml :

<phone:PanoramaItem.HeaderTemplate>

                <DataTemplate>                       
                    <TextBox x:Name="src_textbox" Width="400" TextChanged="src_textbox_TextChanged"/>
                </DataTemplate>
 </phone:PanoramaItem.HeaderTemplate>

now in MainPage.xaml.cs , i want to access src_textbox in the event handler src_textbox_TextChanged :

the event hanndler is as follows:

 void src_textbox_TextChanged(object sender, TextChangedEventArgs e)
    {

        string hello = src_textbox.Text();

    }

i get red lines under src_textbox and error says "it is out of current context" .

How do i access it ?

Answer 1

Yeah I faced the same problem. Solution:

void src_textbox_TextChanged(object sender, TextChangedEventArgs e)
{
    TextBox temp_textBox = sender as TextBox;

    string hello = temp_textBox.Text();

}

You don't need to add name attribute to your TextBox control in the xaml.

Happy Coding!!

Answer 2

Try this :

private void src_textbox_TextChanged(object sender, TextChangedEventArgs e)
        {
            TextBox txtpanorma = (TextBox)sender;
            Debug.WriteLine(txtpanorma.Text);
        }

TextBox.Text is a Property not a method so you cant use () for that.