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[Feature request] NumericUpDown support Int64 Value

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
csharp
Domain
desktop

Research direction

Start at the NumericUpDown control and review its existing Value dependency property and binding behavior. Define what is needed for Int64Value and DecimalValue, then verify that XAML bindings preserve values beyond double precision; the issue provides no test or file location, so repository exploration is required.

Written by the indexing model from the issue text.

Description

Feature request type

enhancement

Is your feature request related to a problem? Please describe

It is recommended that the NumericUpDown control introduce dependency properties for corresponding values such as Int64 and Decimal to prevent precision issues.

long a = 9_007_199_254_740_993;
double d = a;

Console.WriteLine(d);                 // 9007199254740992
Console.WriteLine((long)d == a);      // false
Describe the solution you'd like
<hc:NumericUpDown Int64Value="{Binding}" DecimalValue="{Binding}" />
Describe alternatives you've considered

No response

Additional context

No response

Dominant language
C#
Stars
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Forks
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PR merge metrics
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