cast data dictionary to object c#

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Dear All,
i have variable List Dictionary<string,string> which contain list of object as key value pairs (dictionary items as object attributes )
ex _ListDataDict[0]={{"lstName","pla"},{"Age"},"20"} how can i casting data-dictionary list to list of object Person

List<Dictionary<string, string>> _ListDataDict

 //class Attributes
class person {
string lstName;
string Age;
}

Posted 22-Apr-15 2:47am

Member 11593359

Updated 22-Apr-15 2:54am

v4

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Sinisa Hajnal 22-Apr-15 9:10am

You can't. You can go through the list and assign values...or you could make a list<Person> and not use dictionary as list type in the first place.

If you have to have start with dictionary, you could use new List<keyvaluepair<string, string="">> (_listdatadict) and get the list of pairs and then do some Linq magic to get it to person list...

Alexander Dymshyts 22-Apr-15 9:18am

Why don't you use List<person>?

Member 11593359 22-Apr-15 9:34am

itried to use

but it give me an error Cannot implicitly convert type 'object' to 'Person'. An explicit conversion exists (are you missing a cast?)

<pre lang="c#">[HttpPost]
public HttpResponseMessage Post(List<dictionary<string, string=""> _ListDataDict)
{

if (_ListDataDict != null)
{
foreach (var kvp in _ListDataDict)
{
Person p =JsonConvert.DeserializeObject(kvp.ToString());
}
return ControllerContext.Request.CreateResponse(HttpStatusCode.OK, "The Messages Has Been Successfully Sent Via Sending data Dictionary");
}
else
return ControllerContext.Request.CreateResponse(HttpStatusCode.InternalServerError, "SMS Object = NULL Value");
}</pre>
any idea why

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Abhinav S · Accepted Answer · 2015-04-22T03:03:00

Solution 1

You cannot cast a Dictionary into an object of any type directly.
This is what you will need to do
Person p = JsonConvert.DeserializeObject<person>(_ListDataDict[0]);</person>

Json.Convert is available in Newtonsoft.Json dll which can be downloaded from the web.

Posted 22-Apr-15 3:03am

Abhinav S

Comments

Member 11593359 22-Apr-15 9:20am

itried to use

but it give me an error Cannot implicitly convert type 'object' to 'Person'. An explicit conversion exists (are you missing a cast?)

<pre lang="c#">[HttpPost]
public HttpResponseMessage Post(List<Dictionary<string, string> _ListDataDict)
{

if (_ListDataDict != null)
{
foreach (var kvp in _ListDataDict)
{
Person p =JsonConvert.DeserializeObject(kvp.ToString());
}
return ControllerContext.Request.CreateResponse(HttpStatusCode.OK, "The Messages Has Been Successfully Sent Via Sending data Dictionary");
}
else
return ControllerContext.Request.CreateResponse(HttpStatusCode.InternalServerError, "SMS Object = NULL Value");
}</pre>
any idea why

Richard Deeming 22-Apr-15 9:52am

Try:


string json = JsonConvert.SerializeObject(kvp);
Person p = JsonConvert.DeserializeObject<Person>(json);

Member 11593359 22-Apr-15 10:03am

thank you so much it is working now