how to pass object values in WithMessage function in fluentvalidation - asp.net-core

Question

I have the following code :
RuleFor(record => record)
.Must(WholeObject => Mandatory(WholeObject, keyValuePairs))
.WithName( X => X.KeyName).WithMessage("KeyValue is mandatory but some values are missing")
//Here X.KeyValue contains the value.
//I want to pass this value on error
private bool Mandatory(Object recObj, Object keyValuePairs)
{
//return true or false depeneds on the logic
}
How do I pass the X.KeyValue in WithMessage?, If there is an error it returns .WithMessage("KeyValue is mandatory but some values are missing") but how do I pass the actual value ?
X contains X.KeyName and X.KeyValue
Note:
X.KeyValue is not a string.
public class KeyValue
{
public List<string> Val { get; set; }
}
RuleFor(record => record)
.Must(WholeObject => SizeOF(WholeObject, keyValuePairs))
.WithName(X => X.KeyName).WithMessage(x => $"{x.KeyValue.Val[0]} is not in range(min, max) as defined");
unfortunately this prints only the first value. Is it a way to include only the error value?
I used this
.WithName(X => X.KeyName).WithMessage(x => $"
{x.KeyValue.Val.ToList().ForEach(s => s)} is not in range(min, max) as
defined");
but this didnot work.
private bool SizeOF(Entity.EigenData.Record recObj, IDictionary<string, Entity.EigenSchema.AttributeSet> keyValuePairs)
{
string strval = recObj.KeyName;
Entity.EigenSchema.AttributeSet obj = keyValuePairs[recObj.KeyName];
//if the size falls inbetween min and max
return recObj.KeyValue.ISSizeWithinRange(obj);
//string val = obj.KeyValue.ToString();
}
public static bool ISSizeWithinRange(this Validation.Entity.EigenData.KeyValue kv, Validation.Entity.EigenSchema.AttributeSet Obj)
{
try
{
if (kv.Val.Count > 0) //only if List<val> is available go inside the loop
{
foreach (string s in kv.Val)
{
//foreach val check if its empty or null, if its empty or null then return false
bool True = String.IsNullOrEmpty(s);
if (True)
{
return true;
}
else
{
bool False = (Enumerable.Range(Obj.Size.Min, Obj.Size.Max).Contains(s.Length));
// if it contains within range then do nothing, return true at the end
//if it doesnot fall with in range then return false immediately. No need to check the entire set of values
if(!False)
{
return false;
}
}
}
//if it contains some value then return true
return true;
}
else
{
//List<val> count is zero
return false;
}
}
catch
{
return false;
}
}

Answer 1

Change your code like below:
RuleFor(record => record)
.Must(WholeObject => Mandatory(WholeObject,keyValuePairs))
.WithName(X => X.KeyName).WithMessage(x => $"{x.KeyName} is mandatory but some values are missing");
Whole code:
public class Status
{
public string Name { get; set; }
}
public class CustomValidator : AbstractValidator<Status>
{
public CustomValidator ()
{
RuleFor(record => record)
.Must(WholeObject => Mandatory(WholeObject,keyValuePairs))
.WithName(X => X.Name).WithMessage(x => $"{x.Name} is mandatory but some values are missing");
}
private bool Mandatory(Object recObj, Object keyValuePairs)
{
//return true or false depeneds on the logic
return false;
}
}