devexpress

问题 the following code is used to trigger invoke (code is reduced, i left out the error handling in this example to make it more clear) public static void InvokeIfNecessary(this Control control, MethodInvoker methodInvoker) { if (control != null && !control.IsDisposed && !control.Disposing) { if (control.InvokeRequired) { control.Invoke(methodInvoker); } else { methodInvoker(); } } } Normally it works fine, but sometimes if i call a method of a Form an InvalidOperationException is given.

问题 I have developed an application using TileControl and on Clicking the Tiles, it is navigating to forms. The forms contains GridControl and when I am performing double click event on gridview,it is navigating to another form and displaying a result. Now the Problem is, when i am clicking the back button of Tile Menu,it is directly showing the main menu,instead of form having GridControl. I want to show the GridControl first and then the Main Menu. Please help me with a solution. 回答1: I far as

问题 I want to select a particular row of a DevExpress MVC GridView, which contains a keyvalue. I tried the following codes in the gridview. settings.DataBound = (sender, e) => { MVCxGridView grid = (MVCxGridView)sender; grid.PageIndex = 5; }; settings.PreRender = (sender, e) => { MVCxGridView grid = (MVCxGridView)sender; grid.FocusedRowIndex = grid.FindVisibleIndexByKeyValue(35); }; Here what I wish to get is to highlight the row of 5th page which contains the keyvalue 35. The above code does not

问题 I want to add a new line of row when pressing a button. In datagridview it would be: datagridview1.Rows.Add() What is the equivalent code for that in gridcontrol? Please help me. 回答1: You cannot add a new row directly to your GridControl , since this is just a container for the views. However, if you're using a GridView inside your GridControl (or any other descendant of ColumnView), you can add a new row using AddNewRow() method. (myGridcontrol.MainView as DevExpress.XtraGrid.Views.Grid

问题 How do I do paging in devexpress gridcontrol for c# windows application 回答1: Check out Server Mode http://www.devexpress.com/Help/?document=XtraGrid/CustomDocument2990.htm&levelup=true 来源： https://stackoverflow.com/questions/1859346/paging-in-devexpress-xtragrid-grdicontrol-for-windows-application

问题 I'm a happy user of DevExpress components, though currently I'm still on a linux web host. In another thread I've spoken about my plans to move to a Windows environment so that I can use DevExpress's ASP.Net components. For some time now DevExpress's stand has been that their components is not likely to work on Mono, due to heavy usage of P/Invoke. Having no prior experience with their ASP.Net components, my question is, has anyone successfully used their ASP.Net controls under Mono? I've

问题 I have a DevExpress GridView in my form and I need to change some rows color due to a boolean value. What is the property that allows me to change the backcolor of a row ?? 回答1: You can change the row's color gradient in the RowStyle event handler: private void myGridView_RowStyle(object sender, DevExpress.XtraGrid.Views.Grid.RowStyleEventArgs e) { e.Appearance.BackColor = Color.Green; e.Appearance.BackColor2 = Color.LightGreen; } See: Customizing Appearances of Individual Rows and Cells 回答2:

问题 I use a TcxExtLookupComboBox from Devexpress and try to implement a custom datasource. I have set the customdatasource like this: procedure TMainForm.FormCreate(Sender: TObject); begin fDataSource := TMyDataSource.Create; cbotestSearch.Properties.View.DataController.CustomDataSource := fDataSource; end; TMyDataSource is defined here: unit Datasource; interface uses Classes, IBQuery, SysUtils, cxCustomData; type TSearchItem = class private BoldID: String; Display: String end; TMyDataSource =

问题 I am actually finding that chkContactType.Items is empty when I step through the code. I even added a Watch to chkContactType.Items.Count and it is never anything but 0. I am severly confused now as it obviously isn't as my Insert method works fine which uses these same boxes and inserts the Value Member for each item.... I have some checked list box controls that I need to set the CheckState based on the item value as that is what is stored in the DB for an exsiting record. Unfortunately, I