我有这些if-else语句,我无法重构。我已经使用它们在服务器端使用asp.net进行验证。
有人请建议减少这些陈述的方法吗?此处,验证字段和验证类型为enum
列表。
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationFields.FO.ToString(), ValidationTypes.P.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationFields.FW.ToString(), ValidationTypes.P.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationFields.UF.ToString(), ValidationTypes.P.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationTypes.O.ToString(), ValidationTypes.P.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationTypes.W.ToString(), ValidationTypes.P.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationTypes.P.ToString(), ValidationTypes.C.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
else if (CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), ValidationTypes.C.ToString(), ValidationTypes.U.ToString()))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}
这是Checknextitem
的方法:
public static bool CheckNextItem(string Compareitem1, string comnpareitem2, string items1, string items2)
{
var listContains = Compareitem1 == items1 && comnpareitem2 != items2;
return listContains;
}
如果我使用此代码
var invalidComparisons = new ValidationTypes[][] {
new[] { ValidationFields.FO, ValidationTypes.P },
new[] { ValidationFields.FW, ValidationTypes.P },
new[] { ValidationFields.UF, ValidationTypes.O },
new[] { ValidationTypes.O, ValidationTypes.P },
new[] { ValidationTypes.W, ValidationTypes.P },
new[] { ValidationTypes.P, ValidationTypes.C },
new[] { ValidationTypes.C, ValidationTypes.U },
};
我收到编译时错误:“找不到隐式类型数组的最佳类型”。
答案 0 :(得分:5)
使用列表/数组存储要比较的验证类型:
var invalidComparisons = new string[][] {
new[] { ValidationFields.FO.ToString(), ValidationTypes.P.ToString() },
new[] { ValidationFields.FW.ToString(), ValidationTypes.P.ToString() },
new[] { ValidationFields.UF.ToString(), ValidationTypes.O.ToString() },
new[] { ValidationTypes.O.ToString(), ValidationTypes.P.ToString() },
new[] { ValidationTypes.W.ToString(), ValidationTypes.P.ToString() },
new[] { ValidationTypes.P.ToString(), ValidationTypes.C.ToString() },
new[] { ValidationTypes.C.ToString(), ValidationTypes.U.ToString() },
};
if (invalidComparisons.Any(x => CheckNextItem(ddlBr1Type.SelectedValue.ToString(), ddlBr2Type.SelectedValue.ToString(), x[0], x[1]))
{
BrkTypeValidator2.ErrorMessage = "'TOP0618 -Invalid combination of Bracket IDs'";
args.IsValid = false;
}