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WPF - Pass Command Parameter to RelayCommand  - Need a simple example

Posted on 2012-08-23
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Last Modified: 2012-08-23
Hi..
I need a working example of how to pass a parameter to a Relay Command.

I have simple hyperlink button. When the button is clicked I need to pass a string parameter to the command - the hyperlink will then open a document using the parameter passed

  <Hyperlink Command="{Binding Open_Doc_Command}" CommandParameter="{Binding Path=somefilename}" >
                                            Open Document
                                        </Hyperlink>
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Question by:JElster
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Vel Eous earned 2000 total points
ID: 38325111
Something like the following?

private RelayCommand m_Open_Doc_Command;
public System.Windows.Input.ICommand Open_Doc_Command
{
	get
	{
		if (m_Open_Doc_Command == null)
		{
			m_Open_Doc_Command = new RelayCommand(param => Open_Doc(param));
		}
		return m_Open_Doc_Command;
	}
}

private void Open_Doc(object obj)
{
	string filename = obj as string;
	// do something
}

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