Last Updated: 20 Dec 2021 08:49 by ADMIN
Created on: 08 Jun 2021 15:45
Category: Window
Type: Bug Report
Modal Window moves away from the cursor on drag start when there is a vertical page scrollbar

When you open the Modal Window, try to drag it through a page that has a vertical scrollbar. The Modal Window is moving away from the cursor. This can be seen in our Modal Window demo too. If there is no vertical scrollbar on the page, the Modal Window dragging is working properly.

<div style="height:400px;"></div>
<TelerikButton Icon="window" OnClick=@(()=> WindowVisible = true)>Open Modal</TelerikButton>
<div style="height:400px;"></div>

<TelerikWindow Class="demo-window" Width="500px" Height="300px" Centered="true" @bind-Visible=@WindowVisible Modal="true">
        <strong>Modal Window</strong>
        <WindowAction Name="Close" />
        <p>Click the close button to dismiss this modal dialog.</p>

@code { public bool WindowVisible { get; set; } }

<style type="text/css">
    .demo-window {
        z-index: 44444;

Reproduction steps:

  1. Open the Modal Window
  2. Try to drag it across the page
  3. Try to scroll when you have the Window opened

Reproduction happens in the demo too here:

1 comment
Posted on: 20 Dec 2021 08:49

Hi all,

I made some experiments and can offer two workarounds while we fix the issue:

Progress Telerik

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