datarow

I have the following code: ListBox.DataSource = DataSet.Tables("table_name").Select("some_criteria = match") ListBox.DisplayMember = "name" The DataTable.Select() method returns an array of System.Data.DataRow objects. No matter what I specify in the ListBox.DisplayMember property, all I see is the ListBox with the correct number of items all showing as System.Data.DataRow instead of the value I want which is in the "name" column! Is it possible to bind to the resulting array from DataTable.Select() , instead of looping through it and adding each one to the ListBox ? (I've no problem with

I have a dataset called "results" with several rows of data. I'd like to get this data into a string, but I can't quite figure out how to do it. I'm using the below code: string output = ""; foreach (DataRow rows in results.Tables[0].Rows) { output = output + rows.ToString() + "\n"; } However, I think I'm missing something because this isn't working. Can someone point me in the right direction? You need to specify which column of the datarow you want to pull data from. Try the following: StringBuilder output = new StringBuilder(); foreach (DataRow rows in results.Tables[0].Rows) { foreach

How can I get a sum for the column "pieces" in a datatable? Say I had the following table. How can I calculate the "total" pieces for article="milk" and artno="15"? Columns: article artno pieces Rows: 1 milk 15 1 2 water 12 1 3 apple 13 2 4 milk 15 1 5 milk 16 1 6 bread 11 2 7 milk 16 4 The Result of the my new DataTable should be this: Columns: article artno pieces Rows: 1 bread 11 2 2 water 12 1 3 apple 13 2 4 milk 15 2 5 milk 16 5 My Code: foreach (DataRow foundDataRow in foundRows1) { int i = 0; foreach (DataRow dataRow in foundRows2) { if (object.Equals(dataRow.ItemArray[0], foundDataRow

I have a DataGridView binded to a DataTable ( DataTable binded to database). I need to add a DataRow to the DataTable . I'm trying to use the following code: dataGridViewPersons.BindingContext[table].EndCurrentEdit(); DataRow row = table.NewRow(); for (int i = 0; i < 28; i++) { row[i] = i.ToString(); } But it doesn't work, DataGridView has never been added a new row. Please, tell me, how can I fix my code? Thank you in advance. Aghilas Yakoub You can try with this code - based on Rows.Add method DataTable table = new DataTable(); DataRow row = table.NewRow(); table.Rows.Add(row); Link : https:

while i know i can make a join of 2 rows via sql, my program doesn't use it i have 2 datatables and i take each row, compare to the rows on the other table and want to make a join out of it public DataTable joinTables (DataTable t1, DataTable t2) { DataTable joinTable = new DataTable(); foreach (DataRow r1 in t1.Rows) { foreach (DataRow r2 in t2.Rows) { ///if (....) joinTable.ImportRow(joinRows(r1,r2)); } } return joinTable; } public DataRow joinRows (DataRow r1, DataRow r2) { DataRow joinRow = new DataRow(); ///.... return joinRow; } Here's an example of two ways to do join using LINQ. var t1