DatagridView
in [CSharp]
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From: Ronny on 18 Jul 2008 04:54 Please excuse me if my question is not so clever.... I just learn the stuff of database and datagridview class and I have a question. After download a sample in CodeProject.com (http://www.codeproject.com/KB/vista/Firebird_2_and_Images.aspx) and trying to modify some column header text I saw that the datagridview contains column header text which I can't find in a string search, in the whole project ( nor in the database table columns either). Is there a way to explain that? Regards Ronny
From: jp2msft on 18 Jul 2008 09:26 Hi Ronny, I have not taken the time to download or install the project myself, but I will say that calculations can be made on the fly that are displayed in a datagrid. Say your table contains value 10 in one row and value 5 in the next. A third row can be added to the table that is a result of the first two: 10 / 5 = 2! In a case like that, 2 would not in fact show up anywhere in the code, because it is calculated on the fly. "Ronny" wrote: > Please excuse me if my question is not so clever.... > I just learn the stuff of database and datagridview class and I have a > question. After download a sample in CodeProject.com > (http://www.codeproject.com/KB/vista/Firebird_2_and_Images.aspx) and trying > to modify some column header text I saw that the datagridview contains > column header text which I can't find in a string search, in the whole > project ( nor in the database table columns either). > Is there a way to explain that? > > Regards > Ronny > > >
From: Ciaran O''Donnell on 18 Jul 2008 09:49 Try this: //Add the first column DataGridViewTextBoxColumn col = new DataGridViewTextBoxColumn(); col.HeaderText = "Name"; col.ValueType = typeof(String); dataGridView1.Columns.Add(col); //Add the second column col = new DataGridViewTextBoxColumn(); col.HeaderText = "Id"; col.ValueType = typeof(int); dataGridView1.Columns.Add(col); //Add the third column col = new DataGridViewTextBoxColumn(); col.HeaderText = "Id"; col.ValueType = typeof(int); dataGridView1.Columns.Add(col); //add the data dataGridView1.Rows.Add("ABC", 123, 300); //auto size the columns to make them pretty dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCells); -- Ciaran O''Donnell http://wannabedeveloper.spaces.live.com "Claudia Fong" wrote: > > I need to add new rows into a datagridview manually.. but when I first > added the new row I got an error of: > No row can be added to a DataGridView control that does not have > columns. Columns must be added first. > > But when I add the column I got this error: > > At least one of the DataGridView control's columns has no cell template. > > Can someone help me? > > I want to add something like this: > > Name Id Balance > ABC 123 300 > > > Cheers! > > Claudi > > *** Sent via Developersdex http://www.developersdex.com *** >
From: Ciaran O''Donnell on 18 Jul 2008 09:51 What you have written makes absolutely no sense at all. -- Ciaran O''Donnell http://wannabedeveloper.spaces.live.com "raylopez99" wrote: > On Jul 17, 5:36 am, Claudia Fong <cdolphi...(a)yahoo.co.uk> wrote: > > I need to add new rows into a datagridview manually.. but when I first > > added the new row I got an error of: > > No row can be added to a DataGridView control that does not have > > columns. Columns must be added first. > > > > But when I add the column I got this error: > > > > At least one of the DataGridView control's columns has no cell template. > > > > Can someone help me? > > > > I want to add something like this: > > > > Name Id Balance > > ABC 123 300 > > > > Cheers! > > > > Claudi > > > > *** Sent via Developersdexhttp://www.developersdex.com*** > > I don't know what you mean by 'manually'? You mean by hand, or by > code? > > If by code or by hand, just start from scratch. Somewhere you have a > self-referential pointer that points back to itself and throws you for > a loop. Stuff is binding to stuff that is also trying to bind and you > have this back and forth situation--pardon my scientific language. > > My two cents, for what it's worth. > > RL >
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