I've tried the following code found on the DevExpress site but I get a NullReferenceException
at the view.Bands.Clear()
Dim view As BandedGridView = TryCast(gridControl1.MainView, BandedGridView)
view.Bands.Clear()
'Create the bands layout.
Dim bandProdInf As GridBand = view.Bands.Add()
bandProdInf.Caption = "Notification Details - Drilling"
This would be the look of the gridview that I would like:
https://www.devexpress.com/Support/Center/Attachment/GetAttachmentFile/e5cb046f-fb25-46a4-9ae8-25ba612daa01
"Notification Details - Drilling" would appear as the title of the gridview.
The support team from devexpress provided the following right answer:
The GridView offers a built-in mechanism for showing a title via the ViewCaption property. Additionally you will want to set the GridView's OptionsView.ShowViewCaption property to True.
So you would do the following:
gridview1.ViewCaption = "Grid view title"
gridview1.OptionsView.ShowViewCaption = True
Captions must be enabled, they're disabled by default.
Add:
view.OptionsView.ShowViewCaption = true;
Related
I have created a custom task pane in VB.Net for Outlook using the Code given below and I would like to add more content to the header (image and a button) of the User Control instead of just the title. Is there a way I can achieve this?
myUserControl1 = New OutlookTaskPane
myUserControl1.TabStop = True
Dim width As Integer = myUserControl1.Width
myCustomTaskPane = Me.CustomTaskPanes.Add(myUserControl1, "My Custom Task Pane")
myCustomTaskPane.Width = width
myCustomTaskPane.Visible = True
myCustomTaskPane.DockPositionRestrict = Microsoft.Office.Core.MsoCTPDockPositionRestrict.msoCTPDockPositionRestrictNoChange
Let me know if there is any other way of achieving this please.
Thanks.
Unfortunately the TaskPane header is not customizable. Only Add-in Express supports similar customizations using their implementation of Advanced Form Regions (although only the header icon and header color can be changed and you can't add Windows Forms controls to it). Another option is to implement your own type of Task Pane so you have complete control over the UI; see https://code.msdn.microsoft.com/OlAdjacentWindows/.
I have a Master-Detail set up with 2 grids. On the master grid, I have the ShowOnlyPredefinedDetails option set to false.
This means that I see a little + sign that allows me to expand the details of the detail grid (in the master grid). I would like to rename
some columns in that section as well as hide certain columns. I'm using VB.NET How do I go about this. See image.
You can accomplish this by using the grid control ViewRegistered event, from there you can modify the columns in that grid view that have columns within them that you want to modify, rename, or remove. Here is an example, I hope that it helps:
private void myGridControl_ViewRegistered(object sender, DevExpress.XtraGrid.ViewOperationEventArgs e)
{
if (e != null)
{
if (e.View != null)
{
//Inside of this statement you can adjust, add, and modify all of the columns inside of that grid that appears when you click on the +
(e.View as GridView).Columns["myHiddenColumn"].Visible = false;
(e.View as GridView).Columns.Add(new GridColumn() { Name = "AddColumn", Caption = "Name To Display", Visible = true, FieldName = "DataField"});
(e.View as GridView).Columns["DataField"].OptionsColumn.AllowEdit = false;
(e.View as GridView).Columns["DataField"].OptionsColumn.AllowFocus = false;
(e.View as GridView).Columns["DataField"].OptionsColumn.ReadOnly = true;
}
}
}
I think all you need to do is create a second grid view for your details. If you haven't already done this, do the following:
In your grid designer, click "Retrieve Details" if you have not already done so. This will cause the designer to recognize that you have a second level in your bound object:
Once you see the second layer, now you need a new grid view for it. Click on "Click here to change view" and select "Create a new view" and pick "GridView."
Now you will see both grid views from the designer, and clicking on one or the other will change the context of the menus to the left:
For example, if you have gridView2 selected, when you click on the "Layout" menu, it will show the current layout for your detail grid rather than the master grid. From here, you can remove or add columns as you see fit. Likewise, from the "Columns" menu you will see the new columns (you may have to add them to the view by dragging them over), and you can change the Caption property to change the text of the title.
I suggest you use the Data Annotation attributes with properties of your data-classes to declare how you data should be displayed in GridControl:
To skip column generation for the specific property you can mark this property with the <DisplayAttribute(AutoGenerateField := false)> declaration.
To prevent column from displaying you can mark this property with the <DisplayAttribute(Order := -1)> declaration. Later, user can show this column via Column Chooser UI.
To specify the column caption use the <DisplayAttribute(Name := "YOUR CAPTION")> declaration.
You can also control filtering/editing/formatting and validation capabilities.
Related Links:
Tutorial: Create and Manage Data in Code and Apply Data Annotation Attributes
Video Tutorial: Create and Manage Data in Code and Apply Data Annotation Attributes
I have placed a SplitContainer control onto a form. I have a custom control inside panel 1. This custom control is the container for another user-control.
There is a TreeView control inside this user-control. I am trying to load another user-control onto panel 2 upon selection of a node in the tree view. But its not getting loaded. Am i missing something?
The code for loading the control is given below:
Dim ucImportExcel1 As New ucImportExcel()
frmMain.SplitContainer1.Panel2.Controls.Add(ucImportExcel1)
ucImportExcel1.Dock = DockStyle.Fill
An addition to the above: In the same treeview selection event
For the code below it sets the form text:
me.parentform.text = "Sample Text 1"
Whereas if use this code, nothing happens:
frmmain.text = "Sample Text 2"
When referred by a Directcast, it solved the problem:
DirectCast(Me.ParentForm.Controls.Item("SplitContainer1"), System.Windows.Forms.SplitContainer).Panel2.Controls.Add(ucImportExcel1)
I'm developing a WP7 app and the application needs to change the icon of a button on the application bar given the state of a request.
I have tried:
if (App.Servers[index].ServerState == "Enabled")
{
DetailsAppBar.btnStart.IconUri = new Uri("/AppBar/appbar.stop.rest.png");
}
else
{
DetailsAppBar.btnStart.IconUri = new Uri("/AppBar/appbar.transport.play.rest.png");
}
This doesn't give me an error in the code, but it can't compile....
any hints to do this is appreciated :)
thanks
ApplicationBar is a special control that does not behave as other Silverlight controls (see Peter Torr's post on the subject). One of the consequences is that names given in XAML to app bar buttons generate fields in code-behind that are always null.
I'm guessing that in your case the btnStart field in DetailsAppBar is set to null, and thus trying to set its IconUri property results in a NullReferenceException being thrown.
To access a button in an application bar, you must instead reference it by its zero-based index in the buttons list. For instance, the code below returns a reference to the third button in the app bar:
button = (IApplicationBarIconButton)ApplicationBar.Buttons[2];
figured it out...
((ApplicationBarIconButton)ApplicationBar.Buttons[2]).IconUri = new Uri("/AppBar/appbar.stop.rest.png",UriKind.Relative);
did the trick :)
I have a simple vb.net form a tabpanel strip, and then a seperate form which is loaded for the tabpage.
Here is the code for the button that dynamically creates new tabs:
Dim tempTab As New TabPage
initTab(tempTab)
xt.TabPages.Add(tempTab)
xt.SelectedIndex = xt.TabCount - 1
Here is the code for the "initTab":
Dim tmpTab As New MainTab
tmpTab.Dock = DockStyle.Fill
tmpTab.Panel1.Dock = DockStyle.Fill
tab.Controls.Add(tmpTab)
tab.Text = "Untitled"
tab.Name = " "
I can easily set the focus of any tab by entering following which sets the focus for example to the last tab:
xt.SelectedIndex = xt.TabCount - 1
Now the issue is, how can I set the focus to a textbox on the custom form (in my example labeled "MainTab")? I've tried virtually everything I can google and I can't seem to find any example of how to setfocus or even set/get anything from the MainTab form.
Anyone can help me?
Erm, turning a form into a child control takes some surgery. You have to set its TopLevel property to false, hide the border, make it visible. I don't see it in the code snippet, is MainTab actually a form?
Anyhoo, you cannot use the Focus() method on a control until it is visible. Odds are good that it isn't visible yet in your code snippet. Use the Select() method instead. Say:
tmpTab.TextBox1.Select()
Or just set the TabIndex property of the first control that should get the focus to 0 in the designer.
xt.Controls(xt.SelectedIndex).Controls("TEXTBOXNAME").Focus()
Just make sure that you set the Name property of the textbox you want to have focus (in this case the name would be TEXTBOXNAME) if you do it like this.