I got a sudden urge to gain some reputation on Stack Overflow and went looking for questions with a bounty when I found this particularly interesting one - Loosing hover when animating with jQuery (without moving mouse).
The author of the question had made a fiddle so there was no effort in trying to reproduce the problem which is often a time consuming business.
I made my own fork and started hacking away. After a while I came up with a solution and saved my fork. The solution might not be the prettiest you seen but what’s pretty is how jsFiddle worked as a playground that everyone can use with only a browser. Combined with Stack Overflow this is pretty powerful stuff for getting help from the community.
In the time of writing I haven’t got any feedback on my answer but I’m happy nevertheless for finding such a useful tool.
Thursday, February 10, 2011
How to find nested controls in ASP.Net Webforms
I made a little helper class to find all controls of a certain type on a page or within any control that can contain other controls.
Please use it with care since it could be quite heavy on a page with thousands of control. Do not pass the entire page unless absolutely necessary.
/// <summary>
/// Finds all controls of type T stores them in FoundControls
/// </summary>
/// <typeparam name="T"></typeparam>
private class ControlFinder<T> where T : Control
{
private readonly List<T> _foundControls = new List<T>();
public IEnumerable<T> FoundControls
{
get { return _foundControls; }
}
public void FindChildControlsRecursive(Control control)
{
foreach (Control childControl in control.Controls)
{
if (childControl.GetType() == typeof(T))
{
_foundControls.Add((T)childControl);
}
else
{
FindChildControlsRecursive(childControl);
}
}
}
}
Wednesday, February 9, 2011
How to expand/increase the size of an existing virtual hard disk in VMware Player
I guess I was a bit stingy when I initially set the size of my virtual hard disk and had to pay for that later on. But sometimes it’s impossible to foresee a future need.
Don’t you worry now! It’s a piece of cake to expand the virtual hard disk at a later point in time. Just follow these steps:
Don’t you worry now! It’s a piece of cake to expand the virtual hard disk at a later point in time. Just follow these steps:
- Make sure to backup your virtual machine before proceeding. Just incase!
- From VWware Player (I’m using version 3.1.3), select the virtual machine you want to expand and click Edit virtual machine settings.
- Choose the device Hard Disk (IDE), click the Utilities button and choose Expand….
- Enter the new maximum size in GB and click Expand. This will take a moment.
Your virtual hard disk is now expanded but the guest operating system is still not aware of this.
- Start your virtual machine.
- If your guest operating system is Windows Server 2008, Windows Vista or Windows 7 you could expand the volume in Disk Manager. But if your guest operating system is Windows XP like mine was you have to use a third party utility. I used EASEUS Partition Master which has a free edition for home users.
- Download, install and start EASEUS Partition Master – Home Edition.
- Choose the partition you want to expand and click Resize/Move Partition. Move the slider to the desired size (probably all the way to the right) and click OK.
- Click Apply and EASEUS applies the new size to the volume.
- You can now stop using CCleaner every five minutes
Wednesday, February 2, 2011
Forcing UI redraw/repaint in IE7
A while ago I had a nasty problem with an element that got on top of other elements and was not clickable anymore. This happened in Internet Explorer 7 when I changed the position from absolute to static during horizontal scrolling.
I tried several techniques for redrawing the element but none of them were successful until I stumbled upon this method:
Credits go to vasko who wrote about this on http://ajaxian.com/archives/forcing-a-ui-redraw-from-javascript.
I tried several techniques for redrawing the element but none of them were successful until I stumbled upon this method:
var nastyElement = $("#elementId");
nastyElement.css("display", "none");
nastyElement[0].offsetHeight; // redraw
nastyElement.css("display", "block");
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