datagridview

问题 What is the event that exclusively handles mouse clicks made only on Row Headers of DataGridView? If there are none, what would be an alternative of handling this type of event? 回答1: Have a new Winforms Project and copy-paste the code below :- public partial class Form1 : Form { public Form1() { var list = new List<Books> { new Books() {Title = "Harry Potter", TotalRating = 5}, new Books() {Title = "C#", TotalRating = 5} }; InitializeComponent(); dataGridView1.AutoGenerateColumns = true;

问题 Just posted before and need clarification on a property. (Note I know this question is similar to others and hence I tried looking elsewhere for the solution but couldn't find the exact one for this situation). I'm rather new to programming and don't know how to make a DataGridView scroll to the row selected by a user. I tried using FirstDisplayedScrollingRowIndex but am getting the following error: Error: Cannot implicitly convert type 'System.Windows.Forms.DataGridViewRow' to 'int' Which

问题 I am displaying a table with up to 100,000 rows in a DataGridView. The table has one column which contains large strings. I found out that setting AutosizeMode to AllCells causes the application to freeze for a long time while its computing the required width. As a compromise, I set the Autosize mode to DisplayedCells. I then bound a method to the dataGrid's scroll event: public void MethodThatBindsDataToTheDatagridview(DataTable table) { dataGrid.Source = table; dataGrid.Columns[1]

问题 I build up my datagrid with binding source: SqlDataAdapter adapter = new SqlDataAdapter(Datenbank.cmd); dataSet1.Tables.Clear(); adapter.Fill(dataSet1, "Table"); bs = new BindingSource(); bs.DataSource = dataSet1.Tables["Table"]; dataGridView1.DataSource = bs; Now i sort it: bs.Sort = "customer DESC"; Now I want to add new row at 0 dataSet1.Tables[0].Rows.InsertAt(newRow, 0); However, it will not be insert at position 0 Similar problem with deleting at position x - which was solved in here >>

问题 I use MYSQL Server as my project backend.I have a DataGridView that gets filled with data from the database. when i make changes in the DataGridView cells and i click a saveButton the data need to change in DataGridView and also in database table. here my coding: using MySql.Data.MySqlClient; using System; using System.Data; using System.IO; using System.Windows.Forms; namespace datagridview { public partial class Form1 : Form { DataTable datatab; MySqlDataAdapter mydtadp; MySqlCommandBuilder

问题 I'm remaking an application that my client owns (meaning that I did not create the original application), and one of requests is to simplify the data displayed in one of dataGridViews (the data is drawn from an existing database). The problem is that in the data table that this display uses, one of columns represents a type of usage of a certain product and is represented by an ordinary number. So far my client had to read from another document what does a specific number mean. Now he wants

问题 Right, starting to go crazy here. I have the following code: var query = (from c in db.Descendants("Customer") select c.Elements()); dgvEditCusts.DataSource = query.ToList(); In this, db relates to an XDocument.Load call. How can I get the data into the DataGridView? Just thought I should mention: it returns a completely blank dgv. Not that the XML should matter too much, but here's an example: <Root> <Customer> <CustomerNumber>1</CustomerNumber> <EntryDate>2010-04-13T21:59:46.4642+01:00<

问题 User right clicks on a cell within a DGV, then makes a selection in the ContextMenuStrip. Based on their CMS selection, I want to do something (copy, hide, filter). My problem is identifying the cell that was right clicked on. I was trying to handle this scenario with the following method, but [ColumnIndex] cannot be referenced. private void cmsDataGridView_ItemClicked(object sender, ToolStripItemClickedEventArgs e) { switch (e.ClickedItem.Text) { case "Copy": break; case "Filter On": break;

问题 User right clicks on a cell within a DGV, then makes a selection in the ContextMenuStrip. Based on their CMS selection, I want to do something (copy, hide, filter). My problem is identifying the cell that was right clicked on. I was trying to handle this scenario with the following method, but [ColumnIndex] cannot be referenced. private void cmsDataGridView_ItemClicked(object sender, ToolStripItemClickedEventArgs e) { switch (e.ClickedItem.Text) { case "Copy": break; case "Filter On": break;

问题 I have a DataGridView in readonly mode in a .NET 3.5 (Visual Studio 2008) WinForms application. The cells' width is very small. Some of the cells contain a short number. Now, even with a small font, sometimes the number is shown with an ellipsis. For example "8..." instead of "88" . Is there a way to let the text flow over the next cell in a standard DataGridView and avoid the ellipsis? Thanks! 回答1: I found the solution given here by KD2ND to be unsatisfying. It seems silly to fully re