Using LINQ to find a control in the ControlCollection

While writing a windows application in C#, I realized that there was no find control method in the ControlCollection class. This was a problem as it would create a significant amount of code to find a control. Well it turns out you can do it using LINQ. I had found a blog that I was able to implement the code fairly cleanly. The original code limited me a little bit, but with a very minor modification I came up with this code.

Original Blog: linq-the-uber-findcontrol

public static class PageExtensions
{
public static IEnumerable All(this Control.ControlCollection controls)
{
foreach (Control control in controls)
{
if (control.HasChildren)
{
foreach (Control child in control.Controls.All())
{
yield return child;
}
}
else
{
yield return control;
}
}
}
}

private Control GetControlByName(string name)
{
Control firstEmpty = this.Controls.All()
.OfType()
.Where(tb => tb.Name.Trim().Equals(name))
.FirstOrDefault();
return firstEmpty;
}
Posted in Better Coding, C#, Finding Controls, LINQ Tagged with: , ,

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