C# string to datatable

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WebMar 5, 2014 · public static string convertDataTableToString (DataTable dataTable) { string data = string.Empty; int rowsCount = dataTable.Rows.Count; for (int i = 0; i < … WebGiven below are the examples of C# DataTable: Example #1 Code: using System; using System. Data; public class Example { public static void Main() { DataTable dtable = new DataTable(); dtable. Columns.Add("SNO", typeof(int)); dtable. Columns.Add("Name", typeof( string)); dtable. Columns.Add("City", typeof( string)); dtable.

DataTable Class (System.Data) Microsoft Learn

WebFeb 17, 2024 · Creating a DataTable in “C# DataTable”. We first need to create an instance of a “DataTable class” for creating a data table in “C# DataTable”. Then we will add … WebOct 7, 2024 · string [] myString = {"jan", "feb", "march", "apr"}; DataTable dt = new DataTable ("MyDataTable"); dt.Columns.Add ("MyColumn"); foreach (string value in … piaggio beverly 125 technische daten

c# - How to use LINQ query in C# to filter data by empty or single ...

WebFeb 17, 2024 · DataTable custTable = new DataTable ("purchasers"); DataColumn dtaColumn; DataRow myDataRow; // Create id column dtaColumn = new DataColumn (); dtaColumn.DataType = typeof (Int32); dtaColumn.ColumnName = "id"; dtaColumn.Caption = "Cust ID"; dtaColumn.ReadOnly = false; dtaColumn.Unique = true; // Add column to the … Web// Declare list of strings var names = new List() { "Kenneth", "Jennifer", "Lynn", "Sole", null }; // Convert list to a datatable var tableNames = names.ToDataTable(); // For primitive types, access data using the 'value' key foreach (DataRow row in tableNames.Rows) { Console.WriteLine($" { (Convert.IsDBNull (row ["value"]) ? Web1 day ago · would like to convert it in Datatable in order to show in datagridview. DataTable dt = (DataTable)JsonConvert.DeserializeObject (json, (typeof (DataTable))); dataGridViewKobo.DataSource = dt; Was not able to reproduce. Pleas provide a minimal reproducible example. Also you can just use generic method - var dt = … tooze the deluge

C# How To Convert An Array/List/IEnumerable To A DataTable …

Creating a DataTable From a Query (LINQ to DataSet)

WebOct 27, 2024 · protected void Page_Load (object sender, EventArgs e) { string re = @"MetalFoundry ChipElectronics"; string result = "" + re + "";// add root element DataSet ds = new DataSet (); ds.ReadXml (new XmlTextReader (new StringReader (result))); GridView1.DataSource = ds; GridView1.DataBind (); } … WebApr 9, 2024 · Deserialization: Deserialization is the process of converting a stream of bytes into an object. In C#, we can deserialize a JSON string into an object using the JsonConvert.DeserializeObject () method. Consider the following JSON string: string json = @" { 'Id': 1, 'Name': 'John', 'Email': '[email protected]' }"; To deserialize the above … piaggio 400s beverley specsWebJun 8, 2015 · 1 solution Solution 1 Works for me! C# List list = new List () { "hello", "there" }; DataTable dt = TODataTable (list); dataGridView1.DataSource = dt; And I see four columns, and two rows: "Hello" and "there". I'd start by using the debugger to look at exactly what you are passing the method. Posted 8-Jun-15 5:11am piaggio 3 wheel scooter motorcycles

"WebSep 15, 2024 · DataTable workTable = new DataTable ("Customers"); DataColumn workCol = workTable.Columns.Add ("CustID", typeof(Int32)); workCol.AllowDBNull = false; workCol.Unique = true; workTable.Columns.Add ("CustLName", typeof(String)); workTable.Columns.Add ("CustFName", typeof(String)); workTable.Columns.Add … " - C# string to datatable

C# string to datatable

How to Convert JSON to DataTable in C# - code-maze.com

Knowing that, now you can create a DataSet and use a StringReader to read the Xml straight into the DataSet. var ds = new DataSet (); using (var reader = new StringReader (xmlString)) { ds.ReadXml (reader); } Then, all you need to do is extract the data from the DataSet: WebTo convert a List of objects to a DataTable in C#, you can use the DataTable class and reflection to dynamically create the columns and rows of the table. Here's an example:

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WebDataTable table = new DataTable ("childTable"); DataColumn column; DataRow row; // Create first column and add to the DataTable. column = new DataColumn (); column.DataType = System.Type.GetType ("System.Int32"); column.ColumnName = "ChildID"; column.AutoIncrement = true; column.Caption = "ID"; column.ReadOnly = true; … WebI have a string parameter 'type' to my method, which can be null, single value or multiple values separated by comma as follows: I need to return all rows if type is empty else return only the rows matching the string array. I am using following LINQ in my server side cs file: When i pass null,

Webstring [] keys = {"Order", "Motion", .....}; then loop through them like: foreach (string key in keys) { var item = result.SingleOrDefault (e => e == key); if (item != null) { baseTypes.Add (item); } } Share Improve this answer Follow edited Mar 30, 2016 at 19:18 Malachi ♦ 28.5k 11 83 186 answered Dec 8, 2014 at 17:07 rolfl 97.1k 17 214 417 WebI'm getting JSON data like this from a third party API, which I cannot change: I tried this code to deserialize it: but I'm getting an exception: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'System.Tuple8[VkKonekoBot.vkLongpollEvents+LongpollData+ApiEvent,System.Int32,VkKo

WebSep 14, 2024 · DataTable table = new DataTable (); table.Columns.Add ("Price", typeof(int)); table.Columns.Add ("Genre", typeof(string)); var query = from i in items … WebNov 26, 2024 · C# private static DataTable ConvertJSONToDataTable ( string JSONData) { DataTable dtEmpShiftData = new DataTable (); try { dtEmpShiftData = (DataTable)JsonConvert.DeserializeObject (JSONData, ( typeof (DataTable))); return dtEmpShiftData; } catch (Exception ex) { //logger.Error (ex); return dtEmpShiftData; } }

WebOct 7, 2024 · string [] myString = {"jan", "feb", "march", "apr"}; DataTable dt = new DataTable ("MyDataTable"); dt.Columns.Add ("MyColumn"); foreach (string value in …

WebApr 13, 2024 · Thanks available the quick responses! I have already tried this: mySqlAdapter.Fill(myDataSet); DataTable myDataTable = myDataSet.Tables[0]; but the … piaggio beverly 200 scheda tecnicaWebApr 7, 2024 · Hi. I am trying to create a data table from a string variable. The string contains information as below. ... -like this and continuing till end How to achieve this in C#? C#. C# An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming. piaggio 3 wheel mp3 scooterWebOct 7, 2024 · DataTable is a class for in-memory data and when created it does not required a database connection. You can't do dt=(datatable)session["ta"]; because "c21" has type string and cannot be casted to a datatable type. To create a datatable with 1 row that has "c21" use // Create new DataTable. toozey cat heating padWebAug 18, 2024 · using System; using System.Data; class Program { static void Main () { var table = new DataTable (); table.Columns.Add ( "Product", typeof (string)); table.Columns.Add ( "Variety1", typeof (decimal)); table.Columns.Add ( "Variety2", typeof (decimal)); table.Columns.Add ( "Variety3", typeof (decimal)); table.Columns.Add ( … piaggio beverly 2021Webor in LINQ Query syntax: string [] columnNames = (from dc in dt.Columns.Cast () select dc.ColumnName).ToArray (); Cast is required, because Columns is of type DataColumnCollection which is a IEnumerable, not IEnumerable. The other parts should be obvious. piaggio beverly 200 technische datenWebWhat I am looking for is a way that the underlying DataTable will determine the List instead of having to go through all these if statements that have the wonderful magic … piaggio beverly 125 testWebOct 7, 2024 · public string name { get; set; } public string id { get; set; } } var des = (MyClass)Newtonsoft.Json.JsonConvert.DeserializeObject (u.ToString (), typeof (MyClass)); string response= des.data.Count.ToString (); very simple and easy to use Tuesday, August 2, 2011 3:51 AM piaggio 500cc scooter three wheel