datagridview

问题 In my program, I have a datagridview that is bound to a datatable using a binding source. What I would like to accomplish to be able to sort the datagridview by a column using a natural string sort. Sample Column Data: XAB-1 XAB-2 XAB-11 XAB-3 XAB-1A XAB-10 XAB-1B Desired Result: XAB-1 XAB-1A XAB-1B XAB-2 XAB-3 XAB-10 XAB-11 I have tried using the datagridview.sort method passing in a natural string Icomparer, but the sort function cannot be used when the datagridview is databound. I have

问题 In my program, I have a datagridview that is bound to a datatable using a binding source. What I would like to accomplish to be able to sort the datagridview by a column using a natural string sort. Sample Column Data: XAB-1 XAB-2 XAB-11 XAB-3 XAB-1A XAB-10 XAB-1B Desired Result: XAB-1 XAB-1A XAB-1B XAB-2 XAB-3 XAB-10 XAB-11 I have tried using the datagridview.sort method passing in a natural string Icomparer, but the sort function cannot be used when the datagridview is databound. I have

问题 I have a DataGridView that has a DataTable as the DataSource . Now I want to insert a new empty row to the DataGridView and make it totally black (like a divider line). I have tried to copy one line and make it black with this: Datagridview1.rows.insertcopies(2,2,1); But I'm getting this error: rows cannot be programmatically added to the datagridview's rows collection when the control is data-bound. How can I keep the DataGridView the way she is and just insert a blank row? Clarification : I

问题 I have a DataGridView that has a DataTable as the DataSource . Now I want to insert a new empty row to the DataGridView and make it totally black (like a divider line). I have tried to copy one line and make it black with this: Datagridview1.rows.insertcopies(2,2,1); But I'm getting this error: rows cannot be programmatically added to the datagridview's rows collection when the control is data-bound. How can I keep the DataGridView the way she is and just insert a blank row? Clarification : I

问题 I am trying to delete the selected row from DataGridView and MS-Access database.. Private Sub ButtonEditDelete_Click(sender As Object, e As EventArgs) Handles ButtonEditDelete.Click If Not Connection.State = ConnectionState.Open Then Connection.Close() End If Try If Me.DataGridViewEdit.Rows.Count > 0 Then If Me.DataGridViewEdit.SelectedRows.Count > 0 Then Dim intStdID As Integer = Me.DataGridViewEdit.SelectedRows(0).Cells("Username").Value Connection.ConnectionString = "Provider=Microsoft.ACE

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Improve this question I'm trying to bind a List<dynamic> to a DataGridView DataSource property. While there are no errors when compiling there are no columns being displayed either. If I pre-create the column I get the rows to display, but there's no data in them. Simply put, how can I properly use a

问题 I have a DataGridView and handle event CellFormatting. It has a parameter called: DataGridViewCellFormattingEventArgs e With e.RowIndex in it. When i do: DataGridView.Rows[e.RowIndex] I get proper row from collection. But when I click at a header of a column to sort it by other column than default one and user DataGridView.Rows[e.RowIndex] I get unproper row. It is because Rows collection do not reflect order of rows in DataGridView. So how to get propert DataGridViewRow from RowIndex in

问题 I use an ArrayList for my binary search. The datagridview's rows is added to the ArryList. When I deleting a single row from the datagridview, it works almost perfectly. The problem is when I delete many rows from the datagridview from the top or the bottom and middle, it gives me an error. How can I refresh or update the ArrayList after I deleted a row from the ArrayList (datagridview)? The error: 'Index was out of range. Must be non-negative and less than the size of the collection.

问题 I have a DataGrid with a time column that I need to sum to get the total time, but I can't get that! I'm using this code to try the time sum, with Linq: foreach (DataGridViewRow row in dataGridView1.Rows) { textBox8.Text = dataGridView1.Rows.Cast<DataGridViewRow>() .AsEnumerable() .Sum(x => decimal.Parse(x.Cells["Duracao"].Value.ToString())) .ToString(); } Can anybody help me here? Regards 回答1: Have a look at below code sample. May be it will help you : private void BindGrid() { // Bind Grid

问题 I have DataGridView on my form application. After retrieving data from a table in the database and displaying them in DataGridView , I apply a green color to some cell's BackColor of the rows if a certain condition is met. After those cells are colored green , the program makes them go through another condition, which colors the whole row's BackColor red if they fail to satisfy the condition. However, it seems like pre-colored cells cannot be overwritten with a new color. Even if I apply the