Get specific row from datatable c#

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WebJun 30, 2016 · It returns a DataRow [] that can easily be converted into a list. Example of a 2 column DataTable: DataTable dt = new DataTable (); // TODO: Insert data into DataTable foreach (DataRow row in dt.Select ()) { Console.WriteLine (); Console.WriteLine (row [0].ToString ()); Console.WriteLine (row [1].ToString ()); } Share Improve this answer Web12. The simplest way to extract data from a DataTable when you have multiple data types (not just strings) is to use the Field extension method available in the …

c# - Get row in datagrid - Stack Overflow

WebAug 18, 2010 · You are looking for a row in datatable dt when the row is actually in datatable dtMsg.... Try: int msgIndex = dtMsg.Rows.IndexOf (dtMsg.Rows [0]); Actually that is always going to return zero anyway as you are referencing the row by index anyway. WebDataRow newRow = table.NewRow (); // Set values in the columns: newRow ["CompanyID"] = "NewCompanyID"; newRow ["CompanyName"] = "NewCompanyName"; // Add the row … the poolrooms entity

c# - Getting index of a value in DataTable - Stack Overflow

WebOct 20, 2011 · var rows = tbl.AsEnumerable ().Select (row => row).ToList (); tbl = new DataTable (); tbl.Columns.Add ("ID", typeof (Int32)); tbl.Columns.Add ("NameID", typeof (Int32)); tbl.Columns.Add ("Name", typeof (String)); rows.GroupBy (r => r.Field ("NameID")) .Select (rr => rows.First (rw => rw.Field ("NameID") == rr.Key)) .ToList () .ForEach … WebMar 3, 2012 · If you are looking for a specific row and your datatable has a primary key you could use the Find method and target the primary key which would return just the row you want rather than an array: WebAug 16, 2013 · var DTOperators = new DataTable (); var UserName = "test"; DTOperators.Columns.Add ("UserName", typeof (string)); DTOperators.Rows.Add ("test1"); DTOperators.Rows.Add ("test"); var LoginDetails = from myRow in DTOperators.AsEnumerable () where myRow.Field (0) == UserName select … sid millward \u0026 his nitwits

How to Get a Specific Column Value from a DataTable?

c# - Find a row in a DataTable - Stack Overflow

WebAug 23, 2024 · using System; using System.Data; class Program { static void Main() { // // Get the first row for the DataTable // DataTable table = GetTable(); // // Get the row and … WebOct 17, 2012 · get a new DataTable with: DataTable tblAllButFirst = allButFirst.CopyToDataTable (); If your next question is how you can take only rows with given indices: var allowedIndices = new [] { 2, 4, 7, 8, 9, 10 }; DataTable tblAllowedRows = table.AsEnumerable () .Where ( (r, i) => allowedIndices.Contains (i)) .CopyToDataTable … the poolrooms gameWebpublic double GetVal (int row, int column) { double output; using (var reader = new StreamReader ("filename.csv")) { int m = 1; while (!reader.EndOfStream) { if (m==row) { var splits = rd.ReadLine ().Split (','); //You need check the index to avoid overflow output = double.Parse (splits [column]); return output; } m++; } } return output; } … the poolrooms とは

"WebMar 10, 2011 · EDIT: This data is not stored in a database, so using SQL is not an option. In the past, I've used the following two methods to accomplish this: Method 1 int numberOfRecords = 0; DataRow [] rows; rows = dtFoo.Select ("IsActive = 'Y'"); numberOfRecords = rows.Length; Console.WriteLine ("Count: " + … " - Get specific row from datatable c#

Get specific row from datatable c#

c# - Getting a count of rows in a datatable that meet certain …

WebDec 10, 2009 · Use linq and set the data table as Enumerable and select the fields from the data table field that matches what you are looking for. Example. I want to get the currency Id and currency Name from the currency table where currency is local currency, and assign the currency id and name to a text boxes on the form: WebYou have the Select method off of a DataTable. GEt the table from your DataSet, and use Select to snag it. void Demo (DataSet ds) { DataTable dt = ds.Tables [0]; // refer to your table of interest within the DataSet dt.Select ("Field = 1"); // replace with your criteria as …

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WebJun 24, 2014 · Assuming that you get a duplicate record when the value of the first column is identical for two or more rows: var duplicates = dt.AsEnumerable().GroupBy(r => r[0]).Where(gr => gr.Count() > 1); Here is an example:

WebOct 7, 2024 · User-2107542234 posted. Hi, i have a dataTable contain 3 columns. i want to get a specific row by the User Name WebMar 4, 2024 · 1. You should loop over the result of the Where. Where returns an enumerable of DataRow (s), so it is more appropriate the plural. var myRows = table.Where (x => x.Field ("Year") == 2024); foreach (DataRow row in myRows) { //print row } Where also doesn't filter the current table, so your code loops over the full row collection.

WebJul 17, 2016 · You do know that DataRow is the row of a DataTable correct? What you currently have already loop through each row. You just have to keep track of how many rows there are in order to get the current row. int i = 0; int index = 0; foreach (DataRow row in dt.Rows) { index = i; // do stuff i++; } Share Improve this answer Follow WebOct 22, 2024 · This is C#, and I can not change the input parameters data types, but basically I have to make something like the SQL: SELECT returnCol FROM dt WHERE …

WebDec 11, 2011 · I tried to get row like this : DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex (i); TextBlock cellContent = dataGrid.Columns [0].GetCellContent (row) as TextBlock; But I only got null. Is there another solution? What am I doing wrong? I want to get data from my cells. My …

WebJan 19, 2024 · protected void btnLogin_Click (object sender, EventArgs e) { SqlConnection conn = new SqlConnection (conString); conn.Open (); SqlCommand cmd = new SqlCommand ("SELECT username, pass FROM users where username = '"+txtUser.Text+"' and pass='"+txtPass.Text+"'" , conn); SqlDataAdapter da = new SqlDataAdapter (cmd); … sidm membershipWebDec 24, 2014 · The following is an example to access a specific cell, and print its value in the console: DataTable dt = result.Tables [0]; Console.WriteLine (dt.Rows [rowPosition] [columnPosition]); If you do not want to do a DataTable, you can do the same as follows: Console.WriteLine (result.Tables [0].Rows [rowPosition] [columnPosition]); sid mofWebJan 30, 2016 · 我是C 和使用Windows窗體的新手。我有一個dataTable，如屏幕快照所示，我想基於Button Name列值在button Text列中獲取特定單元格的值，並將其保存在字符串中。我知道我可以使用以下代碼：但是我不想使用它，因為我不想在方括號之間使用數字來索引單元格值，而是想使用But sid mitchell actorWebOct 7, 2024 · DataRow [] drs = dataTable.Select ("UserName='" + name + "'"); DataTable dataTableNew = dataTable.Clone (); foreach (DataRow dr in drs) { … sid mody attorneyWebMay 26, 2010 · // Get the first & third field's value by column index. int weight = dataTable.Rows [0].Field (0); string code = dataTable.Rows [0].Field (2); // Get the second & Fourth field's value by column name. string name = dataTable.Rows [0].Field ("Name"); DateTime date = dataTable.Rows [0].Field … the poolrooms experienceWebSelect one specific row from DataTable with Linq in C#. As DataRowCollection doesn't inherit IEnumerable, so you need AsEnumerable () extension for DataTable (which … sid mookerjee imperial collegeWebMay 27, 2024 · If you're asking how to check if row 0 even exists, use something like this: Name.Text = dt.Rows.Count > 0 ? (string)dt.Rows [0] ["Empname"] : null; And don't use ToString () on something you know is a string, it's not only inefficient, but it shows you don't understand your framework. Share Follow answered May 27, 2024 at 15:46 Blindy sid mitchell