Datatable to string list c#
WebDec 15, 2024 · Rows select new Category() { Id = Convert.ToInt32 (dr [ "Id" ]), CategoryName = dr [ "CategoryName" ].ToString (), IsActive = Convert.ToBoolean (dr [ "IsActive" ]), }).ToList (); } WebOct 24, 2013 · First you need to spit the string appropriately to get a list of string arrays. Something like this: var patient_list = new List (strMLMPatientData.Split (';').Select (x => x.Split (','))); or even better: var patient_list = strMLMPatientData.Split (';').Select (x => x.Split (',')).ToList (); You need Linq for that, but you get the idea.
Datatable to string list c#
Did you know?
WebJun 30, 2016 · An alternative method in getting a list of DataRow is to Select () the DataTable. It returns a DataRow [] that can easily be converted into a list. DataTable dt = new DataTable (); // TODO: Insert data into DataTable foreach (DataRow row in dt.Select ()) { Console.WriteLine (); Console.WriteLine (row [0].ToString ()); Console.WriteLine … WebMar 1, 2024 · Convert DataTable to List Using Linq This is the modern approach for creating a List in C#. public void StudentListUsingLink () { // DataTable dt = new …
WebOct 16, 2008 · DataTable.Select() doesnt give the Rows in the order they were present in the datatable. If order is important I feel iterating over the datarow collection and forming a List is the right way to go or you could also use overload of DataTable.Select(string filterexpression, string sort).. But this overload may not handle all the ordering (like order … WebJun 2, 2010 · What you can do is concatenate all the column in a single string and then add them in a list of string. To do that modify your query like 'CK' said. var data = (from a in db.CoA where a.ParentId == 0 && a.Asset == true select new { a.Asset.ToString() + …
WebI want to know how to transform a DataTable into a Dictionary. I did something like this. using System.Linq; internal Dictionary GetDict(DataTable dt) { return dt.AsEnume... WebNov 5, 2010 · I think all the solutions can be improved and make the method more general if you use some conventions and reflection. Let's say you name your columns in the datatable the same name as the properties in your object, then you could write something that look at all your properties of your object and then look up that column in the datatable to map …
WebOct 17, 2024 · If you just need a comma separated list for all of row values you can do this: StringBuilder sb = new StringBuilder(); foreach (DataRow row in results.Tables[0].Rows) { sb.AppendLine(string.Join(",", row.ItemArray)); } A StringBuilder is the preferred method as string concatenation is significantly slower for large amounts of data.
Web之前写了个 List item.toDataTable() 这种链式调用的List转换为DataTable的方法,有两位热心的网友提出了存在的一些缺陷,如果传入的obj参数不是List而是单个object对象或传入的是单类型的List时转换会出错,现对代码进行了些修改,反正代码测试基本是跑通了,对List,单个Object对象,以及List burgundy and black shoesWeb之前写了个 List item.toDataTable() 这种链式调用的List转换为DataTable的方法,有两位热心的网友提出了存在的一些缺陷,如果传入的obj参数不是List而是单个object对 … burgundy and black smokey eyeWebAug 10, 2024 · This is a simple use case. If you want to get an string array of the full name. Below code will help you to get it. The below code concatenates the First Name and Last Name. And return a string array of full name. IList< string > studentNames = dtStudents.AsEnumerable ().Select (item => string .Format ( " {0}, {1}", item [ … burgundy and black sweatshirt full zipWebApr 11, 2024 · Actually, I sort them in this simple way. somedata.Sort (); and then I copied them in a new list iterating the list of the Group= (Feline, Equidae, Fish, Feline, Bird 1, Bird 2....) parameter because I would divide the list per group type. This iteration copy also the "other data" and in second list that then I merge between putting them using ... burgundy and black suitWeb2 days ago · GroupBy(data => data[0], StringComparer.OrdinalIgnoreCase). ToDictionary(data => data.Key, data => data.First()[2], StringComparer.OrdinalIgnoreCase); I know the problem lies in the parameters in the ToDictionary() function. My code only gets the first match. But I cannot figure out how to … burgundy and black tartan patternWebIn this example, we create a DataTable with two columns, "Id" and "Name", and add three rows to it. We then use the AsEnumerable extension method to convert the DataTable to an IEnumerable, and use the Select method to extract the "Name" column from each row using the Field method. We then convert the result to a List called … hallrewards.comWebJul 23, 2015 · public static DataTable ToDataTable (List 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 … burgundy and black wall art