Drag and Drop a TreeViewItemAdv from a treeview onto a textbox

[Administrator]

Hello,

I am trying to allow users to drop a tree node onto/into a TextBox. However, when I drag the node over the TextBox, the drop indicator changes into "can't be dropped" image and the DragEnter and DragOver events of the TextBox are not firing.

Is there anyway to allow tree nodes to have a drop target that is a TextBox?

Chad

[David C]

Hi Chad,

Thanks for your interest in syncfusion products.

We can Drag the TreeViewItemAdv into TextBox."PreviewDragEnter" event of the TextBox is the best choice for that. Here we have attached the small workaround sample which illustrates this scenario. We hope it will satisfy your needs.

Please let us know if you have any queries.

Regards,
David C



TreeViewDragSample_e73041a0.zip

[Administrator]

Thanks David,

This is very close to what I am looking for. There are two things:

1) From a visual perspective, when I drag the tree node onto the text box, the drap indicator changes to the "cannot drop" circle with a line through it. I tried setting the dragged node's AllowDrop to true in the text box's PreviewDragEnter, but the indicator remained "cannot drop".

2) Neither the PreviewDrop or the Drop event are firing for the text box.

Are there any workarounds to these two issues?

Chad

[David C]

Hi Chad,

Thanks for your update.

1. Change the "cannot drop indicator".
You can change the appearance of the Mouse cursor by using the DragDropEffects enum. The attached sample which illustrates in detail.
2. Neither the PreviewDrop or the Drop event are firing for the text box.
TexBox will fire the Drop event only when e.Handled is equal to true on DragOver. The sample attachment explains that clearly.

Regards,
David C



TreeViewSample_81c1eb3f.zip

[Administrator]

Perfect!