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kogel-net avatar kogel-net commented on June 7, 2024

定义一个guid转换映射
public class GuidTypeHanlder1 : SqlMapper.TypeHandler
{
public override void SetValue(IDbDataParameter parameter, Guid value)
{
parameter.Size = 32;
parameter.DbType = DbType.Object;
//parameter.Value = value.ToString();
parameter.Value = value;
}

    public override Guid Parse(object value)
    {
        //return Guid.Parse((string)value);
        return Convert(value);
    }

    internal static Guid Convert(object value)
    {
        if (value.GetType().Name.Contains("Guid"))
        {
            return (Guid)value;
        }
        else
        {
            return Guid.Parse(value.ToString());
        }
    }
}

然后在初始化的时候注册一下
SqlMapper.RemoveTypeMap(typeof(Guid));
SqlMapper.AddTypeHandler(typeof(Guid), new GuidTypeHanlder1());
这个是dapper的guid转换问题

from kogel.dapper.extension.

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