c# - null許容ブール値のコードを書くためのクリーンな方法

Question

このコードを書くためのよりクリーンな方法はありますか？あるかもしれないと感じますが、どうしたらいいのかわかりません。

    if (loadedFormData.Education.AwardedADegree==true)
    {
        this.radiobuttonNoAwarded.Checked = false;
        this.radiobuttonYesAwarded.Checked = true;
    }
    if (loadedFormData.Education.AwardedADegree == false)
    {
        this.radiobuttonNoAwarded.Checked = true;
        this.radiobuttonYesAwarded.Checked = false;
    }
    else // AwardedADegree is null
    {
        this.radiobuttonNoAwarded.Checked = false;
        this.radiobuttonYesAwarded.Checked = false;

    }

score 11 · Accepted Answer

radiobutton「データがtrue/false / nullの場合に何が起こるか」ではなく、「いつチェックする必要があるか」という質問をします。

this.radiobuttonNoAwarded.Checked = loadedFormData.Education.AwardedADegree == false;
this.radiobuttonYesAwarded.Checked =  loadedFormData.Education.AwardedADegree == true;

score 5 · Accepted Answer

bool?値をnullにできると仮定します。

this.radiobuttonNoAwarded.Checked = AwardedADegree.HasValue && AwardedADegree.Value;
this.radiobuttonYesAwarded.Checked = AwardedADegree.HasValue && !AwardedADegree.Value;

score 1 · Accepted Answer

これを試して：

 this.radiobuttonNoAwarded.Checked = (!loadedFormData.Education.AwardedADegree) ?? false;
 this.radiobuttonYesAwarded.Checked = loadedFormData.Education.AwardedADegree ?? false;

score 0 · Accepted Answer

this.radiobuttonNoAwarded.Checked = (loadedFormData.Education.AwardedADegree ?? false);
this.radiobuttonYesAwarded.Checked = !(loadedFormData.Education.AwardedADegree ?? true);

c# - null許容ブール値のコードを書くためのクリーンな方法

4 に答える 4

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