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How to update property inside a object in C# [closed]

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How can I update "UserPhoneNumber" property value in "Data" property alone from this object. I have done only to change value of property and not nested object.
var updateProfile = generalSettingResponse.Select(x => settingsList.ContainsKey(x.Key) ? settingsList.First(y => y.Key.ToLower() == x.Key) : x);
sample json object:
{
"Name": "John",
"SNo": "1234",
"Data": {
"UserPhoneNumber": "9102287287",
"UserProfileName": "John"
}
}

If you want to change property of json object,here is a demo:
SampleJObject:
{ "Name": "John", "SNo": "1234", "Data": { "UserPhoneNumber": "9102287287", "UserProfileName": "John" } }
Use the following code,the property UserPhoneNumber will be changed:
SampleJObject["Data"]["UserPhoneNumber"] = "0123456789";
result:

You cannot use this:
updateProfile.Data.UserPhoneNumber = "+18888888888";
That will only work if the setters in the class are public.

Which way is better to map a string array and null check? [closed]

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What is the best way to map the result of adds to Codes?
result.adds contains a string array:
string[] adds = new string[] { "A", "B", "C" };
Option 1:
var car = new Car()
{
Name = request.Name,
Codes = (result.adds != null) ? adds : new string[] { }
};
In my opinion option 1 seems strange with creating a new empty string array when the result is false. I also have my doubts about mapping within the object mapping itself. On the other hand, it's direct and fast.
Option 2:
if (result.adds != null)
{
adds = results.adds;
}
var car = new Car()
{
Name = request.Name,
Codes = adds
};
Option 2 null check seems overkill to define the code seperately. It could simply be included in the mapper.

Of the two options you've presented option #1 looks the cleanest. However, you can simplify it more if you can use the null coalescing operator:
var car = new Car()
{
Name = request.Name,
Codes = result.adds ?? Array.Empty<string>()
};
This will use an empty string array in results.add is null.

Parse JSON using Newtonsoft.Json C# [closed]

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I have the following json string:
{
"data":
{
"id": "1",
"city": "London"
},
"cityDetails":
{
"_id": "1",
"location": "UK",
"th": 0,
"title": "Default Group",
}
},
"limit": 0.60451203584671021,
"_id": "1234"
}
How can I extract the the 'city' name from the 'data' section of the JSON string using Newtonsoft.Json in C#.

Try
// load your json here
var obj = JObject.Parse(#"{
""data"":
{
""id"": ""1"",
""city"": ""London""
},
""_id"": ""1234""
}");
// get the city
var city = (string)obj.SelectToken("data.city");
You need to update the selected-token path if the JSON you provided is part of/inside another.

MongoDb 3.0 C# updating subdocument of subdocument

Below is an example of my document. I am trying to update the CostReports part based on the id of the CostReportingPeriods element.
{
"_id" : "240106",
"CostReportingPeriods" : [
{
"FyBgnDt" : ISODate("2000-01-01T05:00:00.000Z"),
"FyEndDt" : ISODate("2000-12-31T05:00:00.000Z"),
"_id" : "240106-20000101-20001231",
"CostReports" : []
},
{
"FyBgnDt" : ISODate("2001-01-01T05:00:00.000Z"),
"FyEndDt" : ISODate("2001-12-31T05:00:00.000Z"),
"_id" : "240106-20010101-20011231",
"CostReports" : []
},
{
"FyBgnDt" : ISODate("2002-01-01T05:00:00.000Z"),
"FyEndDt" : ISODate("2002-12-31T05:00:00.000Z"),
"_id" : "240106-20020101-20021231",
"CostReports" : []
},
{
"FyBgnDt" : ISODate("2003-01-01T05:00:00.000Z"),
"FyEndDt" : ISODate("2003-12-31T05:00:00.000Z"),
"_id" : "240106-20030101-20031231",
"CostReports" : []
}
]
I am using the following code to try and update that element but am getting an error that says cannot use the element (CostReportingPeriods of CostReportingPeriods.CostReports) to traverse the element. If I add CostReportingPeriods.0.CostReports it will add it to the first element of the array, regardless of the filter.
var builder = Builders<MongoModels.Provider>.Filter;
var filter = builder.Eq("_id",costReport.PRVDR_NUM) & builder.Eq("CostReportingPeriods._id", costReport.UNIQUE_ID);
var update = Builders<MongoModels.Provider>.Update.AddToSet("CostReportingPeriods.CostReports", Mapper.Map<CostReport, MongoModels.CostReport>(costReport, opt =>
{
opt.AfterMap((src, dest) => dest.Worksheets = CreateWorksheets(dest.RptRecNum).ToList());
}));
How do I get it to update the element I want it to update based on the id of the subdocument?

After trying a bunch of different things, by channging my update filter from "CostReportingPeriods.CostReports" to "CostReportingPeriods.$.CostReports" it works flawlessly.

How can I import Excel float data into SQL Server with ASP.NET and C# [closed]

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Can someone explain theory this solution? And I have simple code
var PersonID = worksheet.Cells[row, 1].Value;//คอลัมน์ 1
var PersonName = worksheet.Cells[row, 2].Value;//int type in sql
var PersonAge = worksheet.Cells[row, 3].Value;//char type
var PersonCity = worksheet.Cells[row, 4].Value;//char type
var PersonBugged = worksheet.Cells [row,5].Value;// Float type
lsTestdbl.Add(new testdbl
{
id = PersonID == null ? "" : PersonID.ToString(),
name = PersonName == null ? "" : PersonName.ToString(),
age = PersonAge == null ? "" : PersonAge.ToString(),
city = PersonCity == null ? "" : PersonName.ToString(),
bugget = PersonBugged == null ?"" ; PersonBugged.ToString()
});
}
I already can import type char into SQL Server successfully, but the float and int I don't know how to do

You should convert(parse) strings to required types.
int num = string.IsNullOrEmpty(PersonID) ? 0 : int.Parse(PersonID);
double bugged = Convert.ToDouble(PersonBugged);