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convert system.Object[] to Datatable in VB.NET


convert system.Object[] to Datatable in VB.NET

By : kpgbrink
Date : November 14 2020, 04:48 PM
hop of those help? You can use the Json.NET framework. Then you can use the following code in your case
code :
var table = JsonConvert.DeserializeObject<DataTable>(json);
return table;
Dim dt as DataTable = Json.JsonConvert.DeserializeObject(Of DataTable)(data)
Public Function DerializeDataTable(ByVal data As String) As DataTable 
    Dim j As DataTable = Json.JsonConvert.DeserializeObject(Of DataTable)(data)
    Return j
End Function


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How To Convert 'system.collections.generic.list ' to 'system.data.datatable'

How To Convert 'system.collections.generic.list ' to 'system.data.datatable'


By : Brett Maiwald
Date : March 29 2020, 07:55 AM
should help you out Here i am trying to bind the user list uow.Repository().GetAll().ToList(); to DataTable dt but there is a error saying cannot convert type 'system.collections.generic.list ' to 'system.data.datatable' in line dt = uow.Repository().GetAll().ToList();. , You can use following method to convert List to DataTable
code :
public DataTable GetAllUser1()
{
    DataTable dt = new DataTable();
    dt = ToDataTable(uow.Repository<User>().GetAll().ToList());
    return dt;
}


public DataTable ToDataTable<T>(List<T> items)
{
    DataTable dataTable = new DataTable(typeof(T).Name);
    //Get all the properties
    PropertyInfo[] Props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
    foreach (PropertyInfo prop in Props)
    {
        //Setting column names as Property names
        dataTable.Columns.Add(prop.Name);
    }
    foreach (T item in items)
    {
        var values = new object[Props.Length];
        for (int i = 0; i < Props.Length; i++)
        {
            //inserting property values to datatable rows
            values[i] = Props[i].GetValue(item, null);

        }
        dataTable.Rows.Add(values);
    }
    //put a breakpoint here and check datatable
    return dataTable;

}
Convert a datatable string from Azure ML WS to an actual Datatable C# Object?

Convert a datatable string from Azure ML WS to an actual Datatable C# Object?


By : Paul
Date : March 29 2020, 07:55 AM
wish of those help Yes, there is a open source online gernator on the net (http://jsonutils.com/). Copy paste your result will give you that:
code :
 public class Value
    {
        public IList<string> ColumnNames { get; set; }
        public IList<string> ColumnTypes { get; set; }
        public IList<IList<string>> Values { get; set; }
    }

    public class WSOutput
    {
        public string type { get; set; }
        public Value value { get; set; }
    }

    public class Results
    {
        public WSOutput WSOutput { get; set; }
    }

    public class Example
    {
        public Results Results { get; set; }
    }
Impossible to convert System.Object[] into type {System.String, System.Management.Automation.ScriptBlock}

Impossible to convert System.Object[] into type {System.String, System.Management.Automation.ScriptBlock}


By : user2677418
Date : March 29 2020, 07:55 AM
hop of those help? Finally i found my error, my variable was not declared into the "Invoke-Command".
However, when i launch command in a remote server with Invoke-Command, i get this error on several server :
code :
Impossible de trouver un paramètre correspondant au nom « File ».
+ CategoryInfo          : InvalidArgument : (:) [Get-ChildItem], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.PowerShell.Commands.GetChildItemCommand
+ PSComputerName        : Server1
Get-ChildItem -Path C:\Users -Recurse -Force -File | 
Sort-Object -Property Length -descending | 
Select-Object -Property Directory,Name,$properties | 
Export-Csv -Path \\Server2\c$\script\LogER\file.csv -Delimiter ';' -Encoding UTF8 - 
NoTypeInformation
Asp.net WebService Cannot convert object of type 'System.Int32' to ty…neric.IDictionary`2[System.String,System.Object]'

Asp.net WebService Cannot convert object of type 'System.Int32' to ty…neric.IDictionary`2[System.String,System.Object]'


By : user3237079
Date : March 29 2020, 07:55 AM
may help you . I've been trying to call a WebService using Angular , You need to pass:
code :
{fahrenheit: 50}
50
Cannot implicity convert type object to system.data.datatable

Cannot implicity convert type object to system.data.datatable


By : Kutay Kutlay
Date : March 29 2020, 07:55 AM
I hope this helps you . You get the error because the conectar method returns an object, which you then assign to Dt1, which is a DataTable, and so you get the message that the value cannot be implicitly converted..
You can explicitly cast the return value to a DataTable, as the conectar method never returns null:
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