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Home/ Questions/Q 8544859
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Editorial Team
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Editorial Team
Asked: June 11, 20262026-06-11T12:39:39+00:00 2026-06-11T12:39:39+00:00

public decimal v1 { get { return this._v1; } set { this._v1 = value

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public decimal v1 {
  get {
    return this._v1; 
  }
  set {
    this._v1 = value ?? 0M;  // also I tried, default(decimal)
  }
}

Error message say :

Operator ‘??’ cannot be applied to operands of type ‘decimal’ and ‘decimal’

Why it does not work, and how should I do make it works?

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  1. Editorial Team
    Editorial Team
    2026-06-11T12:39:40+00:00Added an answer on June 11, 2026 at 12:39 pm

    The decimal type cannot be null, so the null-coalesce operator makes no sense here. Just set _v1 to value.

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