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I wonder if it is possible to use Drag and Drop in Windows Forms for files outside the application, in this case, a . txt(As is possible in WPF). I only found examples using Listbox. If possible, how to get the data from the dragged file?
I am using version 4.6 of . NET Framework.
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Jonathan, I imagine you want to get the address from the file. Well, for this you need to do a check if what is being dragged is in fact a file with the Dragover Event
private void TextBox_DragOver(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop))
e.Effect = DragDropEffects.Link;
else
e.Effect = DragDropEffects.None;
}
Then when the file is released inside the Textbox (Dragdrop Event) you create a string with the file
private void TextBox_DragDrop(object sender, DragEventArgs e)
{
string arquivo = e.Data.GetData(DataFormats.FileDrop) as string;
TextBox.Text = arquivo;
}
In short it’s good luck.
Guy try to answer by showing the code snippet , so you answered it is not allowed here on sopt. in that case you can use the .
I have a Code Much like the one that Guilherme posted and it works this way and I think it answers the question.
Browser other questions tagged c# .net winforms drag-n-drop
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I wanted to drag you into one
TextBoxand show the contents of the file?– rubStackOverflow
For a Listbox, however, it is a complete file, in format . txt.
– Jonathan Barcela
It is a file with data to fill a
ListBox? Or you want to fill only with the file name? If you want to fill in the contents ofListBoxadd the contents of the file to question.– rubStackOverflow
Simply read the file to the end and play line by line in Listbox.
– Jonathan Barcela
@Jonathanbarcela In general lines you want to put in a listbox the name of the text file and the number of lines it has. See if you can get help https://msdn.microsoft.com/pt-br/library/ezwyzy7b.aspx
– Luiz Vichiatto