Generate a comma separated string from an IEnumerable object

string.join(",", Contacts.Select(x=>x.Name); //Name is a property of an object(Contact) in the list of Contacts

Simple yet effective way to find if IEnumerable has elements or not

bool IsEmpty(IEnumerable en)
{
    foreach(var c in en) { return false; }
    return true;
}

C# code to get numbers after decimal point

int decimalPoints=BitConverter.GetBytes(Decimal.GetBits(value)[3])[2];

How do you force authors or template stylists to force add a control

How do you force authors or template stylists to force add a control

Solution- Provides template authors the information that these parts are required for styling this control -more like a contract

[TemplatePart [Name=TextBlockPart, Type =typeof(TextBlock)))

public class MyControl : Control

{

private const string TextBlockPart as PART_TextBlock;

TextBlock textblock;

protected TextBlock Textßlock

get { return textblock;}
set
{
if (textßlock is null)

(

textblock.Textlnput-= new TextCompositionEventHendler(textblockTextlnput)

J

Access TemplatedElements in CustomControl

How to access TemplatedElements in CustomControl?

Override OnApplyTemplate in the .cs file. Its called everytime a template is applied to a control

public override void OnApplyTenplate()

{
base.OnApplyTemplate();

var textblock= GetTemplateChild("Name Of Part") as TextBlock;

textblock.Text="hello";

}

How to get two way binding with Template Binding in WPF

Template Binding by default doesnt support Two Way binding.
If you still need to have it, here's the workaround:

<TextBox Text="{Binding Text, RelativeSource={RelativeSource TemplatedParent}"/>

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