Datatable to entity list c#

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WebNov 25, 2024 · Step 3: Now we are going to convert this list object to a DataTable. For that we need to create a new class and a conversion method as below. public class ListtoDataTableConverter { public DataTable ToDataTable(List items) { DataTable dataTable = new DataTable(typeof(T).

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WebOct 16, 2008 · You need to add data type information for columns. DataTable dt = new DataTable (); dt.Columns.Add ("id",typeof (Int32 )); dt.Columns.Add ("name",typeof (String)); dt.Columns.Add ("foo",typeof (DateTime )); for (int i=0;i<=1000;i++) {dt.Rows.Add (i, "foo", DateTime.Now);} – Rahul Garg Jul 25, 2024 at 10:56 Add a comment 15 Web2 days ago · I found Removing "RE:" (and alikes) from email subject using RegEx class which is great at stripping re: etc. from the incoming subject. But, we have instances where the ticket title includes the RE:. I anticipate that it could include FW: and FWD: and the mixed and lower case versions of all of those. What's the cleanest Linq or SQL query to ... huh bearings

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WebIf you have any Typed DataType for list object something like this. public class MyObj { public string Name { get; set; } public int ID { get; set; } } WebNov 16, 2010 · public static class DataTableExtensions { public static IList ToList (this DataTable table) where T : new () { IList properties = typeof (T).GetProperties ().ToList (); IList result = new List (); foreach (var row in table.Rows) { var item = CreateItemFromRow ( (DataRow)row, properties); result.Add (item); } return result; } private static T … WebSep 14, 2024 · In this article. Data binding is a common use of DataTable object. The CopyToDataTable method takes the results of a query and copies the data into a DataTable, which can then be used for data binding.When the data operations have been performed, the new DataTable is merged back into the source DataTable.. The … huh botanists

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WebMar 1, 2024 · public void StudentList () // DataTable dt = new DataTable ("Branches"); DataTable dt = new DataTable ("Student"); dt.Columns.Add ("StudentId", typeof(Int32)); … Web10 hours ago · I have checked all the namespaces and found no other errors, and I have never modified the code in this file namespace of Data namespace of Entity. // using Microsoft.EntityFrameworkCore; using Microsoft.EntityFrameworkCore.Infrastructure; using … huh baru rame sekarangWebFeb 10, 2014 · From dynamic list to DataTable: List dlist=new List var json = JsonConvert.SerializeObject (dlist); DataTable dataTable = (DataTable)JsonConvert.DeserializeObject (json, (typeof (DataTable))); Also to get JsonString from DataTable: string JSONresult = JsonConvert.SerializeObject … huh bags

"Webpublic static DataTable ToDataTable (this IList data) { PropertyDescriptorCollection properties = TypeDescriptor.GetProperties (typeof (T)); DataTable table = new DataTable (); foreach (PropertyDescriptor prop in properties) table.Columns.Add (prop.Name, Nullable.GetUnderlyingType (prop.PropertyType) ?? prop.PropertyType); foreach (T item … " - Datatable to entity list c#

Datatable to entity list c#

c# - Models with List<> in them .. How does this work with Entity ...

WebFirst of all you will need to include Player in your DBContext: public class TeamDBContext : DbContext { public DbSet Teams { get; set; } public DbSet Players { get; set; } } Then you might read this article that describes how to load related entities. Probably you will add it like that: WebIn the below example, first, we declare and initialize a string variable and then we declare a DateTime variable. Then within the if block we are calling the DateTime.TryParse and passing the first parameter as the string variable and the second one is the out data time parameter. If the above string is converted to DateTime, then DateTime ...

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WebSep 14, 2009 · There are Linq extension methods for DataTable. Add reference to: System.Data.DataSetExtensions.dll. Then include the namespace: using System.Data.DataSetExtensions. Finally you can use Linq extensions on DataSet and … Webvar dataTable = GetDataTableFromSomewhere (); var dynamicTable = dataTable.AsDynamicEnumerable (); var firstRowIDColumn = dynamicTable.First ().ID; var lastRowIDColumn = dynamicTable.Last () ["ID"]; But I prefered an IDataReader approach if possible. Share Improve this answer Follow edited Dec 18, 2024 at 14:33 answered Dec …

Webusing AutoMapper; public List ReadData (DataTable dt) { return Mapper.DynamicMap> (dt.CreateDataReader ()); } Call method like this: DataTable dt = getPeopleDT (); List peopleList = ReadData (dt); Share Improve this answer Follow edited Nov 13, 2024 … WebJun 22, 2024 · 1 I have a datatable which contains some rows as a result of joining two tables using the below query: SELECT e.Id AS EmpId, e.Name AS EmpName, d.Id AS DeptId, d.Name AS DeptName FROM …

WebSep 29, 2013 · private static DataTable ConvertToDatatable (List data) { PropertyDescriptorCollection props = TypeDescriptor.GetProperties (typeof (T)); DataTable table = new DataTable (); for (int i = 0; i )) table.Columns.Add (prop.Name, prop.PropertyType.GetGenericArguments () [0]); else table.Columns.Add (prop.Name, … Web2 days ago · Checkboxes are generated based on already saved data in different Database table. Idea is that based on what what checkbox is "checked" it's being added to list List with FustTypeName I'm stuck in part @Html.CheckBoxFor(model=>model.FustTypeList) as my list should contain strings, but output from checkbox is Boolean

WebMar 27, 2016 · private static List ConvertDataTable (DataTable dt) { List data = new List (); foreach (DataRow row in dt.Rows) { T item = GetItem (row); data.Add (item); } return data; } private static T GetItem (DataRow dr) { Type temp = typeof (T); T obj = Activator.CreateInstance (); foreach (DataColumn column in dr.Table.Columns) { foreach …

WebMay 29, 2024 · public static DataTable CreateDataTable (IEnumerable entities) { var dt = new DataTable (); //creating columns foreach (var prop in typeof (T).GetProperties ()) { dt.Columns.Add (prop.Name, prop.PropertyType); } //creating rows foreach (var entity in entities) { var values = GetObjectValues (entity); dt.Rows.Add (values); } return dt; } … huh bedeutungWebDataTable dt = YourList.ToDataTable (); public static DataTable ToDataTable (this List iList) { DataTable dataTable = new DataTable (); PropertyDescriptorCollection propertyDescriptorCollection = TypeDescriptor.GetProperties (typeof (T)); for (int i = 0; i )) type = Nullable.GetUnderlyingType (type); dataTable.Columns.Add … huh bunny gifWebThe LINQ Contains Method in C# is used to check whether a sequence or collection (i.e. data source) contains a specified element or not. If the data source contains the specified element, then it returns true else returns false. There are there Contains Methods available in C# and they are implemented in two different namespaces. huh dalstonWeb1 day ago · 1. New contributor. 1. Your question is a bit large and boils down to 2 different questions, that would fit better. First you want to know which container type is the best option in your case. Secondly you want to know, how to access, or index the elements in the container. – stena. huh clipartWebOct 3, 2011 · 19. Did you try: List entityList = new List (myEntityCollection); And by the way if you import the System.Linq namespace in order to bring the .ToList () extension method into scope, there's no reason why: List entityList = myEntityCollection.ToList (); wouldn't work as EntityCollection … huh buttonWebMay 2, 2011 · List list = new List (); foreach (DataRow dr in table.Rows) { MyEnt obj = new MyEnt (); obj.Load (dr.ItemArray); list.Add (obj); } Share Improve this answer Follow answered May 2, 2011 at 11:57 FIre Panda 6,501 2 24 38 Add a comment 1 You can first convert it to generic datatable and then convert that datatable to list. huh bulldog memeWebJun 11, 2013 · 6 Answers. Sorted by: 3. You can use command.ExecuteReader method and fill entity data using reader. public List ConsultCustomerData (string cardID) { List list = new List (); string sql = "SELECT name, cash FROM customers WHERE card_id = @cardID"; MySqlCommand cmd = new MySqlCommand … huh bunny