WPF read Checkbox.Content

问题

I have a couple of CheckBoxes with a TextBlock as content. Now I want to read out the TextBlock.Text from each Checkbox.

If I read out the content like checkBox.Content.ToString(); I only get System.Windows.Controls.TextBlock which kinda makes sense.

I also tried to create a new TextBlock and give it the content but it didn't work.

  TextBlock _tempTBL = new TextBlock();
  _tempTBL = checkBox.Content;

Any help is much appreciated.

回答1:

var _tempTBL = (TextBlock) checkBox.Content; //Get handle to TextBlock
var text = _tempTBL.Text; //Read TextBlock's text

Edit:

On a side note, you can directly set desired text as CheckBox's content.

checkBox.Content = "Hello World";

And when you want to access the text, no type cast is needed

string text = checkBox.Content;

回答2:

You have to cast the type to a TextBlock:

// no need to 'new' it up if you're assigning an existing instance...
TextBlock _tempTBL = (TextBlock) checkBox.Content;

来源：https://stackoverflow.com/questions/41129614/wpf-read-checkbox-content