Cannot implicitly convert type 'System.Collections.Generic.List

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public List<spectruminfo> GetSpectrumBandList(uint StartTime)
{
List<spectruminfo> splist = new List<spectruminfo>();

using (System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(DbApi.ConnectionString))
{
conn.Open();
var spectrumItems = DbApi.GetSpectrumBandStartValue(conn, StartTime);

foreach (SpectrumItem item in spectrumItems)
{
SpectrumInfo spinfo = new SpectrumInfo();
spinfo.StartTime = item.startTime;
spinfo.BandStart = item.bandStart;
spinfo.PathId = item.pathId;
spinfo.CellId = item.cellid;
splist.Add(spinfo);
}

}
return splist;
}

XML

var spectrumBandList = GetSpectrumBandList((uint)StartTime);
//matchInfo.Channels = new List<int>();
matchInfo.Channels = spectrumBandList;

Cannot implicitly convert type 'System.Collections.Generic.List<ProView.Web.Services.SpectrumInfo>' to 'System.Collections.Generic.List<int>'

I got error for (matchInfo.Channels = spectrumBandList;).how to solve this

Posted 8-Feb-15 22:24pm

Rnshanmugavadivel

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4 solutions

Solution 1

What is the type of matchInfo.Channels.
If its type is

C#

List<int>

then you cannot assign spectrumBandList to it.
You have to define matchInfo.Channels as

C#

List<spectruminfo>

.

Posted 8-Feb-15 22:29pm

nagendrathecoder

Updated 8-Feb-15 22:30pm

v2

Solution 2

Seriously?
It tells you exactly what the problem is.
matchInfo.Channels is of type System.Collections.Generic.List<int> and you're assigning it a value of System.Collections.Generic.List<ProView.Web.Services.SpectrumInfo>

You need to set a different list.

Posted 8-Feb-15 22:31pm

InbarBarkai

Solution 3

this is because the function GetSpectrumBandList() returns a list splist that contains a list of SpectrumInfo

VB

ProView.Web.Services.SpectrumInfo

which cannot be assign to a list of integers that's why you are getting such error. you can avoid this by using like this :

VB

matchInfo.Channels = new List<spectruminfo>();</spectruminfo>

Posted 8-Feb-15 22:34pm

Sujith Karivelil

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/\jmot · Accepted Answer · 2015-02-08T23:12:00

try..

C#

public List<spectruminfo> GetSpectrumBandList(uint StartTime)
{
List<spectruminfo> splist = new List<spectruminfo>();
 
using (System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(DbApi.ConnectionString))
{
conn.Open();
var spectrumItems = DbApi.GetSpectrumBandStartValue(conn, StartTime);
 
//foreach (SpectrumItem item in spectrumItems)
//{
//SpectrumInfo spinfo = new SpectrumInfo();
//spinfo.StartTime = item.startTime;
//spinfo.BandStart = item.bandStart;
//spinfo.PathId = item.pathId;
//spinfo.CellId = item.cellid;
//splist.Add(spinfo);
//}
foreach (var item in spectrumItems)
{
SpectrumInfo spinfo = new SpectrumInfo();
spinfo.StartTime = item.startTime;
spinfo.BandStart = item.bandStart;
spinfo.PathId = item.pathId;
spinfo.CellId = item.cellid;
splist.Add(spinfo);
}
}
return splist;
}