datagridview

问题 I wanted to create a datatable based from a 5 column datatable. Also, I would like to remove the last column (it is an image column). Basically, what I wanted to have is ( a pseudocode ) datatable = datagridview.datasource I have tried this, but failed: Dim dt As New DataTable dt = TryCast(dgvCarAccidentInjury.DataSource, DataTable) And this, Dim dt As New DataTable(dgvCarAccidentInjury.DataSource) Again I failed. I saw this on the c# column but I don't know how to convert it to vb.net, maybe

问题 Hi Friends I have to join 4 tables in SQL Server and need to Show Specific Coulmns in Data Grid View First Table : emp_details Second Table : tbl_designation Third Table : tbl_empcontribution Forth table : tbl_empdeduction Columns need to show in Data Grid View is 1.From First Table i need to show emp_id, emp_name , emp_pf 2.from Second Table i need to show designation_name 3.from third Table i need to show pfacc1 and pfacc2 4.From Fourth Table i need to show pf_percent and pf_max Try to

问题 Hi Friends I have to join 4 tables in SQL Server and need to Show Specific Coulmns in Data Grid View First Table : emp_details Second Table : tbl_designation Third Table : tbl_empcontribution Forth table : tbl_empdeduction Columns need to show in Data Grid View is 1.From First Table i need to show emp_id, emp_name , emp_pf 2.from Second Table i need to show designation_name 3.from third Table i need to show pfacc1 and pfacc2 4.From Fourth Table i need to show pf_percent and pf_max Try to

问题 I have datatable that has 1 row and of course caption name columns , now I want to show them vertically in a datagridview for example the datagridview must have 2 columns that rows of one of them shows caption name and the other shows related values of datatable I try to do that by this code but it shows an exception: {"There is no row at position 1."} the code is: public static void GetSelectedFeedsDetails(Form1 frm) { string StrCon = System.Configuration.ConfigurationManager

问题 I have a DataTable filled with information about audio tracks. DataTableColumn that stores the track number is of a UInt32 type so when I display the DataTable in DataGridView, I'm able to sort data by that column. For tracks when there is no track number I've got 0 in DataTable. data.Tables["active"].Columns["Track"].DataType = Type.GetType("System.UInt32"); Is it possible to display every 0 in that column in DataGridView as an empty string (nothing)? But still have it stored as UInt32 0 in

问题 I have a DataTable filled with information about audio tracks. DataTableColumn that stores the track number is of a UInt32 type so when I display the DataTable in DataGridView, I'm able to sort data by that column. For tracks when there is no track number I've got 0 in DataTable. data.Tables["active"].Columns["Track"].DataType = Type.GetType("System.UInt32"); Is it possible to display every 0 in that column in DataGridView as an empty string (nothing)? But still have it stored as UInt32 0 in

问题 For example, within a TabPage, I have a DataGridView that is docked "Fill". If I set the dock property of a UserControl to the the "Right" position, the DataGridView moves to the left as expected. If I replace the UserControl with a Panel or Label (also docked to the "Right" within the TabPage) the DataGridView does not make room. The Panel or Label just overlay the DataGridView. I tried stackoverflow and did some reading but did not see any rules (yet). Thanks. 回答1: Their Z-order. You can

问题 For example, within a TabPage, I have a DataGridView that is docked "Fill". If I set the dock property of a UserControl to the the "Right" position, the DataGridView moves to the left as expected. If I replace the UserControl with a Panel or Label (also docked to the "Right" within the TabPage) the DataGridView does not make room. The Panel or Label just overlay the DataGridView. I tried stackoverflow and did some reading but did not see any rules (yet). Thanks. 回答1: Their Z-order. You can

问题 I need to create datagrid at runtime in and add it to one new tab. C# 3.0 -- .net 3.5 Any starting point? 回答1: It's really easy... DataGridView dg = new DataGridView(); // set columns (auto or manual) // set appearance (lots of style options) // set data source (IEnumerable object) dg.DataBind(); placeHolder1.COntrols.Add(dg); // add to placeholder 回答2: The best way to learn how to do this is to add data grid on design time and take a look on the auto generated code. 回答3: You can do this much

问题 I am newbie in C# and probably this might be a possible duplicate but am unable to do filter of records on datagrid view whose columns were designed from designer view on TextBox change event. This is my code to populate the datagridview. Any help will be highly appreciated. IList<ProductEntity> emp = HibernateDao.fetchDAta(); IList<ProductModel> products = new List<ProductModel>(); foreach(ProductEntity e in emp) { dataGridView1.Rows.Add("" + e.id, e.barcode, e.product_name, e.product_desc,