question about referesh
My problem is like this, I draw my form using d3d function, it draws
well. But the problem is everytime When call form->Refresh to ask the form
to be redraw, it will use the forms's backcolor to clear the form first.
This make the image on the form blinking. Is there anyway to disable this
clear? Thx! Tag: change color of TabPage header Tag: 67564
How to display money number in a DataGrid?
I want to display a double field in the format of currency. For example
100.345 as 100.36
But since the data grid is bound to a dataset, I find no way to control it
I am using an untyped dataset. Can this problem be solved if I using a typed
dataset
Thanks a lot. Tag: change color of TabPage header Tag: 67563
How to create an Outlook Style Event Calendar in VB.Net
Hi,
Does anyone have any ideas as to how I should best approach creating an
outlook style event calendar in VB.NET?
Any help would be greatly appreciated.
Thanks. Paul Tag: change color of TabPage header Tag: 67562
Can't close a window form
I am having a problem closing a window form. Calling Close() or click X does close it after a certain combination of events. When I overrode OnClosing, I found that the CancelEventArgs's Cancel property was set to true. Would some one help me out why CancelEventArgs's Cancel property be set to true? Tag: change color of TabPage header Tag: 67559
Dynamically Add User Controls to a Form at Run Time?
Is it possible to dynamically load a user control on a windows form similar
to the way you can load a web user control to an aspx page. Basically, I
would like the database to determine which controls are loaded to a form. I
am trying to mimic the IBuySpy portal functionality in a windows
application. Any ideas on how to do this? Tag: change color of TabPage header Tag: 67558
PropertyGrid section
How do I make sections in a PropertyGrid. IOW. what do I have to do to
prevent every public property appearing in the "misc" section?
TIA,
Bronco Tag: change color of TabPage header Tag: 67555
Launching IE, with encrypted parameters, to an SSL website
I have a Windows Forms application where I request a username/password from
the user. When the user clicks a button, I would like to launch IE to a
given page on my SSL webserver and send along the username/password pair
that was provided by the user. I understand how to open IE to a specific
website from a Windows Forms application using the
System.Diagnostics.Process.Start method, but I don't know how to include the
username and password as form fields in that request (so they'll be
encrypted during transmission). Obviously I don't want to include that data
as part of the QueryString ...
My only thought is that I can create a temporary HTML on the client side
which contains the username/password in hidden form fields and does
something like onLoad="form.submit();" But this solution seems messy...
Any ideas?
Thanks,
Michael Carr Tag: change color of TabPage header Tag: 67550
Code Editor using ListView for line numbers
Hi,
I am making a code editor and want to display line numbers to the
left. I have a UserControl with a ListView docked to the left edge and
a TextBox that makes up the rest. I am able to add items to the
ListView when a new line is entered in the TextBox (these items are
the line numbers). What I am not able to figure out is how to update
the view of the ListView when the TextBox starts scrolling vertically.
I would like the ListView to show those line numbers only that the
TextBox is currently displaying.
It would be great if someone could help me out,
Navin Tag: change color of TabPage header Tag: 67547
Orphaned ControlBox in MDI child
So, I have this MDI application. Occasionally, if I have a few MDI children open, and then close one of them, the ControlBox for the MDI children becomes duplicated, right next to one another in the far upper right hand corner, below the ControlBox for the MDI parent. It has the appearrance of Minimize, Maximize, Close, Minimize, Maximize, Close(except it looks like the Underscore, Line at top of box, Capital X duplicated). Both of the ControlBoxes seem to work. However, if I close all of the MDI children, after the last one is closed, there is still a ControlBox remaining, orphaned, below the ControlBox for the MDI parent? Odd huh
Michael Tag: change color of TabPage header Tag: 67544
Merging cells on datagrid
Hi
I have a windows forms project with a form that has a datagrid on it. I want to merge cells which are same value
Is it possible to do this
Current vie
ID City Ban
----------------------------
1 Istanbul Anadol
----------------------------
2 Istanbul Financ
----------------------------
3 Istanbul Tec
----------------------------
4 Ankara Publi
----------------------------
5 Ankara Famil
----------------------------
6 Ankara Whit
Wanted vie
ID City Ban
----------------------------
1 Anadol
2 Istanbul Financ
3 Tec
----------------------------
4 Publi
5 Ankara Famil
6 Whit
----------------------------
Thanks Tag: change color of TabPage header Tag: 67542
Is there really no way to hide a TabPage?
Hide and Visible have no effect.
this.tabControl1.TabPages[iField].Visible = false;
this.tabControl1.TabPages[iField].Hide();
I hear that the TabControl in the .NET framework is a wrapper of the Tab
control in the Common Control Library. I read a posting that stated:
"the only way to do what you want to achieve is by using
the horribly and unfriendly method of removing and adding tabs."
http://tinyurl.com/2jb3v
Thanks in advance for any tips or suggestions,
-Ed Tag: change color of TabPage header Tag: 67540
ADSI with NT 40
I created a windows form in Csharp. I successfully installed the
application on the target computer. The OS is NT40 with the latest
service pack on it and .Net Framework 1.1. I also went to Microsoft
website and download the ADSI for NT 40 and installed it on the target
computer. The application (using ADSI) is looking at the NT group of
the user that is currently logged in. When I launched the
application, ther error came up and displayed a message saying: Can
not find RADMIN32.DLL in the system32 directory. The machine where I
developed it has Windows 2000. I guess Windows 2K has a DLL that NT
does not. I tried to search on Google for RADMIN32.dll but no results
came up. Can you help? Tag: change color of TabPage header Tag: 67539
Image Gone when apply Application.enablevisualstyles()
Hi,
I found that when I apply application.enablevisualstyles. all the button
image and listview image are not shown up.
pls help me, anywhere to show the image when i apply that features
Thank you Tag: change color of TabPage header Tag: 67537
Guidance needed with Drag and Drop style calander
Hi,
I'm currently pondering how to write a simple scheduling app in VB.Net that
displays a horizontal monthly timeline of days, from left to write, and then
colour coded bookings for each of the resource in a grid format underneath.
When creating bookings I would like to be able to highlight the days that
the booking spans for a resource, just like in Outlook Calendar where you
can create an appointment by highlighting the number of half-hours it spans.
Subsequently I would like to be able to resize the appointment, and drag and
drop it either elsewhere in the persons timeline, or across to another
persons timeline. It goes without saying that I would need to keep track of
the booking movements before they are saved to the database.
I have searched high and low for example code that would allow me to perform
such functioality, but to no avail. Has anyone had any experience of this
type of coding before who could point me in the right direction?
Any help would be gratefully received. Thanks. Paul Tag: change color of TabPage header Tag: 67536
problem with axwebbrowser on tabcontrol in usercontrol
Hoping someone can help me here.....
I have seen numerous references from other people with a similar
problem..... I have a Windows Forms usercontrol which contains a tab
control with two tab pages, each of which contains an axWebBrowser
control.
I am navigating each axWebBrowser to a different word document, but,
when I click on the second tab page, the second web browser does not
appear.
If I place the tab control straight onto a windows form then it works
fine.
Can anyone offer a workaround? Tag: change color of TabPage header Tag: 67535
Drag and Drop of Class Instance
I've been experimenting with drag and drop. I have a program which displays
a DataSet in a DataGrid. I have sucessfully used the MouseDown event to
locate the appropriate DataRow and to pass it to DoDragDrop. When I drop it,
I see an item of type DataFormats.Serializable.
But what do I do with the data that comes back when you use e.Data.GetData?
It's a System.__ComObject, and I don't know what to do with it.
Can anyone point me to an exanple or article on doing this?
Thanks,
John Saunders
John.Saunders at SurfControl.com Tag: change color of TabPage header Tag: 67532
How to bind Data Grid to non-DataTable type, but still get auto columns
(sorry about the earlier version of this, I pressed enter, and it sent it without getting a chance to write subject
I've recently got involved in a project that requires me to use some other type of input that a DataTable as my input, such as an array list. What I'm tring to find out, is how can I use an arraylist (or maybe some better control) to populate a DataGrid so that the 'columns/fields' show up automatically. This would be very helpful in situations in which I would like to use the wizard like features of the datagrid such as the property builder
Any help would be appreciated. Thanks in advance!!!!!!!! Tag: change color of TabPage header Tag: 67528
How To: Display objects in a PropertyGrid DropDown list?
I followed the MSDN example that uses a StringConverter to display states
(like Ohio, Florida,) in a PropertyGrid using a DropDown list. This works
fine for strings, but I would like to do this with objects I create on the
fly.
I think I have to create a custom TypeConverter, but I'm not sure how. Any
examples would be helpful.
Thanks,
Steve Tag: change color of TabPage header Tag: 67523
Painting over an ActiveX-Control
Hello,
I am working on an enhanced HTML-Editor based on DHTMLEdit. So I created a
subclass like that:
public class HTMLEditor : AxDHTMLEDLib.AxDHTMLEdit
I have created a lot of functions to insert Tables, Images, etc. Edit them,
drag Table cells, etc... What I now basically want is to draw my own stuff
in the editing window on top of that which is drawn anyway by DHTMLEdit.
For example a grid like Visual Studio .NET does in HTML-View. Or drawing
boxes over tables which the mouse is hovering like Frontpage 2003 does...
I thought I simple override WndProc, catch WM_PAINT, let the base class do
that drawing stuff and then I just paint my stuff over it, like that:
protected override void WndProc(ref System.Windows.Forms.Message m)
{
base.WndProc(ref m);
if (m.Msg == WM_PAINT)
{
IntPtr hDC = IntPtr.Zero;
hDC = GetDC(this.Handle);
Graphics g = Graphics.FromHdc(hDC);
g.FillRectangle(new SolidBrush(Color.Red),0,0,100,100);
g.Dispose();
ReleaseDC(this.Handle, hDC);
}
}
I tried other things to get an instance of Graphics, like
CreateGraphics-Member of Control, etc.
When starting the app, I see that red rectangle, but a second later it's
"hidden" by the HTMLEditor, and its never visible again.
I also played around with the ControlStyles, but did not find anything that
worked...
Anyone has an idea?
Thanks in advance,
Phillip Schuster Tag: change color of TabPage header Tag: 67522
sission object
Is it possible to check the session object from a windows form?
I'm making a shared assembly and I want it to work with my windows forms and
my asp.net forms. If asp.net is calling it I want it to check for somehitng
in the session object. If the windows form is calling it then I don't want
it to bypass the session check. How can I do this (c#)
Thanks! Tag: change color of TabPage header Tag: 67518
Datagrid and Bound ComboBox Columns
Hi, I have a tough one..
I have a datagrid that is bound to a typed dataset the following way
Dim ds as New MyDataSe
Datagrid.Datasource = d
Datagrid.DataMembre = "BonReception" 'A datatable from my datase
In that datagrid I have to combobox column (they come from a class I have made) and the combobox are bound like this
ComboBoxColumn.ComboBox.DataSource = d
ComboBoxColumn.ComboBox.DisplayMember = "Intervenant.TypeIntervenant" 'Another datatable from my datase
ComboBoxColumn.ComboBox.ValueMember = "Intervenant.ID
ComboBoxColumn.ComboBox.DataBindings.Add("SelectedValue", ds, "BonReception.TypeIntervenantID"
The second combobox column's combobox use a data relation between the table Intervenant and IntervenantDetai
ComboBoxColumn.ComboBox.DataSource = d
ComboBoxColumn.ComboBox.DisplayMember = "Intervenant.IntervenantIntervenantDetail.Intervenant" ComboBoxColumn.ComboBox.ValueMember = "Intervenant.IntervenantIntervenantDetail.ID
ComboBoxColumn.ComboBox.DataBindings.Add("SelectedValue", ds, "BonReception.IntervenantDetailID"
The comboboxes in each column behave as expected, if you select a TypeIntervenant in the first combobox, the second combobox only displays the Intervenant that match the selected TypeIntervenant in the first combobox
The problem is this,
the data is displayed in the first combobox column, but only in the first row of the second combobox column. If I click in the first column on the second row then in the second column the first row will go blank and the second row will display it's value. If I click in the second column at any row the combobox shows up with the right value for that row
If I remove the data relation between table Intervenant and IntervenantDetail, the data is displayed correctly and everything behave as expected. But I don't have the relation between the two combobox columns and I need that
Here is the code for my ComboBoxColumn Class
Public Class DataGridFormattableComboBoxColum
Inherits DataGridColumnStyl
Private isEditing As Boolea
Private isReadOnly As Boolea
Private _cm As CurrencyManage
Private _RowNum As Intege
Private WithEvents _ComboBox As New NoTabComboBo
Public Event SetCellFormat As FormatCellEventHandle
Public Event CurrentCellDataChanged(ByVal MappingName As String, ByVal Data As Object
Public Sub New(
MyBase.New(
ComboBox.Visible = Fals
End Su
Public Property ComboBox() As NoTabComboBo
Ge
Return _ComboBo
End Ge
Set(ByVal Value As NoTabComboBox
_ComboBox = Valu
End Se
End Propert
Protected Overrides Sub Abort(ByVal rowNum As Integer
isEditing = Fals
Invalidate(
End Su
Protected Overrides Function Commit(ByVal dataSource As CurrencyManager, ByVal rowNum As Integer) As Boolea
ComboBox_Leave(Nothing, Nothing
Return Tru
End Functio
Protected Overloads Overrides Sub Edit(ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal bounds As Rectangle,
ByVal [readOnly] As Boolean, ByVal instantText As String, ByVal cellIsVisible As Boolean
Dim value As Strin
If Me.isEditing The
Exit Su
End I
If MyBase.ReadOnly The
Exit Su
End I
_cm = sourc
_RowNum = rowNu
If IsDBNull(GetColumnValueAtRow([source], rowNum)) The
value = MyBase.NullTex
If ComboBox.DataSource Is Nothing And Not ComboBox.Items.Contains(value) The
ComboBox.Items.Insert(0, value
End I
Els
value = CType(GetColumnValueAtRow([source], rowNum), String
End I
If cellIsVisible The
ComboBox.Bounds = New Rectangle(bounds.X, bounds.Y, bounds.Width, bounds.Height - 2
ComboBox.Text = valu
ComboBox.Visible = Tru
ComboBox.Focus(
Els
ComboBox.Text = valu
ComboBox.Visible = Fals
End I
End Su
Protected Overrides Function GetPreferredSize(ByVal g As Graphics, ByVal value As Object) As Siz
Return New Size(100, ComboBox.PreferredHeight + 1
End Functio
Protected Overrides Function GetMinimumHeight() As Integer
Return ComboBox.PreferredHeight + 1
End Function
Protected Overrides Function GetPreferredHeight(ByVal g As Graphics, ByVal value As Object) As Integer
Return ComboBox.PreferredHeight + 1
End Function
Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer)
Paint(g, bounds, [source], rowNum, False)
End Sub
Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal alignToRight As Boolean)
Paint(g, bounds, [source], rowNum, Brushes.Red, Brushes.Blue, alignToRight)
End Sub
Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal backBrush As Brush, ByVal foreBrush As Brush, ByVal alignToRight As Boolean)
Dim str As Object
Dim rect As Rectangle = bounds
Dim e As DataGridFormatCellEventArgs
e = New DataGridFormatCellEventArgs(source, rowNum, Me.MappingName, Me.DataGridTableStyle.DataGrid.Font, backBrush, foreBrush)
RaiseEvent SetCellFormat(Me, e)
str = GetColumnValueAtRow([source], rowNum)
If IsDBNull(str) Then
str = MyBase.NullText
End If
If Not e.UseBaseClassDrawing Then
g.FillRectangle(e.BackBrush, rect)
Else
g.FillRectangle(backBrush, rect)
End If
rect.Offset(0, 2)
rect.Height -= 2
Try
If Not e.UseBaseClassDrawing Then
g.DrawString(str, e.TextFont, e.ForeBrush, RectangleF.FromLTRB(rect.X, rect.Y, rect.Right, rect.Bottom))
Else
g.DrawString(str, Me.DataGridTableStyle.DataGrid.Font, foreBrush, RectangleF.FromLTRB(rect.X, rect.Y, rect.Right, rect.Bottom))
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Protected Overrides Sub SetDataGridInColumn(ByVal value As DataGrid)
MyBase.SetDataGridInColumn(value)
If Not (ComboBox.Parent Is Nothing) Then
ComboBox.Parent.Controls.Remove(ComboBox)
End If
If Not (value Is Nothing) Then
value.Controls.Add(ComboBox)
End If
End Sub
Private Sub ComboBox_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles _ComboBox.SelectedValueChanged
If ComboBox.Modified Then
Me.isEditing = True
MyBase.ColumnStartedEditing(ComboBox)
End If
End Sub
Protected Overrides Function GetColumnValueAtRow(ByVal source As System.Windows.Forms.CurrencyManager, ByVal rowNum As Integer) As Object
If Not Me.ComboBox.DataSource Is Nothing Then
Try
Dim obj As Object = MyBase.GetColumnValueAtRow(source, rowNum)
Dim i As Integer
Dim DataMember As String
Dim ValueColName As String
Dim DisplayColName As String
Dim cm As CurrencyManager
Dim dView As DataView
If Me.ComboBox.DisplayMember.IndexOf(".") > -1 Then
DataMember = Me.ComboBox.DisplayMember.Substring(0, Me.ComboBox.DisplayMember.LastIndexOf("."))
DisplayColName = Me.ComboBox.DisplayMember.Substring(Me.ComboBox.DisplayMember.LastIndexOf(".") + 1)
Else
DisplayColName = Me.ComboBox.DisplayMember
End If
If Me.ComboBox.ValueMember.IndexOf(".") > -1 Then
ValueColName = Me.ComboBox.ValueMember.Substring(Me.ComboBox.ValueMember.LastIndexOf(".") + 1)
Else
ValueColName = Me.ComboBox.ValueMember
End If
If Me.ComboBox.DataSource.GetType.ToString.EndsWith("dsBonReception") Then
cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource, DataMember), CurrencyManager)
Else
cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource), CurrencyManager)
End If
dView = CType(cm.List, DataView)
For i = 0 To dView.Count - 1
If Not IsDBNull(obj) AndAlso Not IsDBNull(dView.Item(i).Item(ValueColName)) Then
If obj = 340 And dView.Item(i).Item(ValueColName) = 340 Then
Dim t As String
t = ""
End If
End If
If obj.Equals(dView.Item(i).Item(ValueColName)) Then
Exit For
End If
Next
If i < dView.Count Then
Return dView.Item(i).Item(DisplayColName)
End If
Return DBNull.Value
Catch ex As Exception
MsgBox(ex.Message)
End Try
Else
Return MyBase.GetColumnValueAtRow(source, rowNum)
End If
End Function
Protected Overrides Sub SetColumnValueAtRow(ByVal source As System.Windows.Forms.CurrencyManager, ByVal rowNum As Integer, ByVal value As Object)
If Not Me.ComboBox.DataSource Is Nothing Then
Try
Dim s As Object = value
Dim DataMember As String
Dim ValueColName As String
Dim DisplayColName As String
Dim cm As CurrencyManager
Dim i As Integer
Dim dView As DataView
If Me.ComboBox.DisplayMember.IndexOf(".") > -1 Then
DataMember = Me.ComboBox.DisplayMember.Substring(0, Me.ComboBox.DisplayMember.LastIndexOf("."))
DisplayColName = Me.ComboBox.DisplayMember.Substring(Me.ComboBox.DisplayMember.LastIndexOf(".") + 1)
Else
DisplayColName = Me.ComboBox.DisplayMember
End If
If Me.ComboBox.ValueMember.IndexOf(".") > -1 Then
ValueColName = Me.ComboBox.ValueMember.Substring(Me.ComboBox.ValueMember.LastIndexOf(".") + 1)
Else
ValueColName = Me.ComboBox.ValueMember
End If
If Me.ComboBox.DataSource.GetType.ToString.EndsWith("dsBonReception") Then
cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource, DataMember), CurrencyManager)
Else
cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource), CurrencyManager)
End If
dView = CType(cm.List, DataView)
For i = 0 To dView.Count - 1
If s.Equals(dView.Item(i).Item(ValueColName)) Then
Exit For
End If
Next
If i < dView.Count Then
If source.Position = rowNum Then
MyBase.SetColumnValueAtRow(source, rowNum, dView.Item(i).Item(ValueColName))
End If
Else
If source.Position = rowNum Then
MyBase.SetColumnValueAtRow(source, rowNum, DBNull.Value)
End If
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
Else
MyBase.SetColumnValueAtRow(source, rowNum, value)
End If
End Sub
Private Sub ComboBox_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles _ComboBox.Leave
If Not isEditing Then
ComboBox.Hide()
Exit Sub
End If
isEditing = False
Try
Dim value As Object = ComboBox.SelectedValue
If Not value Is Nothing Then
SetColumnValueAtRow(_cm, _RowNum, value)
RaiseEvent CurrentCellDataChanged(MyBase.MappingName, value)
Else
EnterNullValue()
RaiseEvent CurrentCellDataChanged(MyBase.MappingName, DBNull.Value)
End If
Catch
End Try
Invalidate()
ComboBox.Hide()
End Sub
'
' ComboBox class removing the tab key
'
Public Class NoTabComboBox
Inherits ComboBox
Private pModified As Boolean
Private KeyPressed As Boolean
Private MouseClicked As Boolean
Sub New()
pModified = False
KeyPressed = False
MouseClicked = False
End Sub
Protected Overrides Sub RefreshItem(ByVal index As Integer)
MyBase.RefreshItem(index)
End Sub
Protected Overrides Sub SetItemsCore(ByVal items As System.Collections.IList)
MyBase.SetItemsCore(items)
End Sub
Protected Overrides Function ProcessKeyMessage(ByRef m As System.Windows.Forms.Message) As Boolean
If m.Msg = &H101 Then '&H101 = WM_KEYUP
If m.WParam.ToInt32 = 9 Then '9 = TABKEY
Return True
End If
End If
Return MyBase.ProcessKeyMessage(m)
End Function
Public ReadOnly Property Modified() As Boolean
Get
Modified = pModified
End Get
End Property
Protected Overrides Sub OnClick(ByVal e As System.EventArgs)
MouseClicked = True
End Sub
Protected Overrides Sub OnSelectedValueChanged(ByVal e As System.EventArgs)
If MouseClicked Or KeyPressed Then
pModified = True
MouseClicked = False
KeyPressed = False
Else
pModified = False
End If
MyBase.OnSelectedValueChanged(e)
End Sub
Protected Overrides Sub OnKeyPress(ByVal e As System.Windows.Forms.KeyPressEventArgs)
If Char.IsLetterOrDigit(e.KeyChar) Then
KeyPressed = True
End If
MyBase.OnKeyPress(e)
End Sub
End Class
End Class Tag: change color of TabPage header Tag: 67516
localization to db
Has anybody already tried to store the localized properties in a db instead
of using satelite assemblies? Actually my question is, how do I change the
"new ResourceManager(typeof(...))" at the beginning of InitializeComponent
of a Form to "new MyResourceManager(...)".
I actually tried it by suplying my own CodeDomSerializer but somehow only
got propertyassignment-code and can't find the actualy code dom code for the
new MyResourceManager(...)
Has someone an idea what I'm missing?
regards
Chrs Tag: change color of TabPage header Tag: 67515
PrintPreviewDialog problem?
I'm attempting to print graphics to a printer using a PrintPreviewDialog. The PrintPreviewDialog correctly displays what I intend to print, but when I press the Print button on the PrintPreviewDialog the printer spits out a single blank page regardless of how many pages are displayed in the dialog
Below is my button click event. The PrintDocument object has not been modified after dropping it onto the form
private void mniPrint_Click(object sender, System.EventArgs e
tr
PrintPreviewDialog ppd = new PrintPreviewDialog()
ppd.Document = printDocument
ppd.ShowDialog()
catch (Exception ex
// error handle
Are there any known issues with this control
Thanks
Todd. Tag: change color of TabPage header Tag: 67514
List of activated fonts does not include shortcut activations
Our font management tool, Suitcase, activates fonts dynamically by creating shortcuts in the Windows font folder. Using System.Drawing.Text.InstalledFontCollection to get the list of font families from the system yields only the fonts whose files are physically in the system font folder- not the shortcuts. None of our applications have any problems using the fonts activated by shortcuts. Can anyone recommend another way to retrieve the complete list of fonts? Thanks for any suggestions
Josh Usovsk
Code
System.Drawing.Text.InstalledFontCollection installedFonts = new System.Drawing.Text.InstalledFontCollection()
System.Drawing.FontFamily[] fams = installedFonts .Families; Tag: change color of TabPage header Tag: 67512
Registeresd JIT debugger is not available
I have created a setup file to execute a C sharp application developed
using VS.NET 2003.. I want to execute the application on a client
computer (running NT 4.0), I have installed the latest microsoft .NET
framework 1.1
While I am trying to execute the exe file on the client computer I am
getting an error message..
Application has generated an exception that could not be handled.
Process id=0x1a3(419), Thread id=0x194(404)
Can anyone help me to solve this problem? Thanks. Tag: change color of TabPage header Tag: 67511
TreeView Nodes
I have created a treeview control on my form. Each node
has a checkbox next to it. I want to be able to click the
specific node and open the correspond Word document. For
example, If I click Test1 node on my treeview it will
bring me to the Test1.doc document in Word. I tried
several ways but none of them work. I got message saying
that "The argument is out of the range". I appreciate if
someone could help! Thanks in advance.
Sincerely
KaiTi Yen Tag: change color of TabPage header Tag: 67510
TreeView and ObjectDisposedException
Hi All!
I have an application that opens form with TreeView.
I want to close form by AfterSelect Event:
private void MyTreeView_AfterSelect(object sender,
System.Windows.Forms.TreeViewEventArgs e)
{
this.Close();
}
But everytime when I clicking on TreeView Item,
I get following error:
An unhandled exception of type 'System.ObjectDisposedException' occurred in
system.windows.forms.dll
Additional information: Cannot access a disposed object named "TreeView".
Any ideas?
Thank you,
Vitaly Sedov Tag: change color of TabPage header Tag: 67500
TreeView and ObjectDisposedException
Hi All!
I have an application that opens form with TreeView.
I want to close form by AfterSelect Event:
private void MyTreeView_AfterSelect(object sender,
System.Windows.Forms.TreeViewEventArgs e)
{
this.Close();
}
But everytime when I clicking on TreeView Item,
I get following error:
An unhandled exception of type 'System.ObjectDisposedException' occurred in
system.windows.forms.dll
Additional information: Cannot access a disposed object named "TreeView".
Any ideas?
Thank you,
Vitaly Sedov Tag: change color of TabPage header Tag: 67499
File Association
How do I go about (programmatically) associating files created by my App with a particular icon, and how do I ensure that the app is run and loaded with a file when double-clicked - all in the same way that an App like MSWord does it
Thanks in advanc
Rich Tag: change color of TabPage header Tag: 67495
WinForm App and TaskManager
Hi,
I've a winform app and want to start the program without
beeing visible in the task manager on a Windows ME box.
I've seen some programs that start using the "Run" option
in the registry and not appearing in the task manager. These
programs are written in VC++ and I'm wondering how can I
do that for my C# application?
If this is not possible with an UI, can I write a background
process which starts silently to monitor the other app?
Remember, we're talking about a ME/98 box and have no
services available. The background is that I want to prevent
a user from killing my monitoring software in the task
manager.
Thanks for your ideas,
Joerg Tag: change color of TabPage header Tag: 67493
Controlling program flow in VB.NET
I am a beginner in using VB.Net although I do have
experience in VB6. It always seems that I have to keep my
startup object in memory otherwise the application will
just end. Even if I have transfered control to another
form. It is irritating to have to keep my splash screen in
memory just to make sure that my application will continue
running. Can anyone help me? I'm going crazy already!! Tag: change color of TabPage header Tag: 67483
How to get instance of control by name
Hi,
imagine having an INI-file with entries like:
# key=Control / value=Text property of control
controlA=bla bla bla
controlB=bla bla bla
controlA and controlB are different controls of types like TextBox, etc.
Closing form will write INI-file, storing control names and text property of
these
Loading form will read INI-file and set text value of corresponding control
quite a simple task, if you'll do it as follows:
....
switch (iniControl)
{
case "controlA" :
controlA.Text = iniValue;
break;
...
}
...
But what about a more generic solution?
Assuming that the key-value of INI-file is a known control, an instance
within the form, what about a solution like:
- get instance of the control by its name
- set value from INI-file to Text-property
Tried to solve this by using reflection - something like
GetType(iniControl), but never suceeded.
What do you think how this could be solved?
Thanks and regards - Jari Tag: change color of TabPage header Tag: 67480
C# GDI+/WindowsForms Learning-Project started
Hi
I'm started a learning project on http://sharpgrid.sourceforge.net. Learning item is a GDI+ - based entirly written in c#. Please check code and give improvements
Than
Alex Tag: change color of TabPage header Tag: 67479
Search for Files with System.IO.DirectoryInfo.GetFiles()
I am trying to locate all image files in a particular folder. I use the
System.IO.DirectoryInfo to open information about the specific directory. I
am then trying to query all of the images in that folder whether the
extension be .jpg, gif, or bmp. So far I have not had any luck passing more
than one extension to 'GetFiles(String searchPattern). Is there a way to
pass more than one extension to this method?
Also is there a better way to search for files? Something more along the
lines of FindFirstFile from the Win32 API?
Thanks for the help
Brian Tag: change color of TabPage header Tag: 67472
Dll Import problem
** I forgot to ask one more thing, Just see the last few lines.
I have a Dll written in C. And I want to Import that Dll into my C#
program and use a function in the Dll. In a previous newsgroup article
I saw that I may need to wrap the Dll in a C++ .NET class and then use
that in my C# application. But when I run my program I get an error
saying
System.IO.FileNotFoundException: File or assembly name "abc", or one
of its dependencies, was not found.
File name: "abc"
abc is my wrapper project class library.
here is my wrapper class is given below. The lib name is wdll.lib and
the header is dll.h.
#include "dll.h"
#pragma comment(lib, "wdll.lib")
namespace MyWrapper {
public __gc class Class1 {
public:
static void myfunc1(long JobNo)
{
_libmain(JobNo);
}
static char * myfunc2(void *vJobRec, short field, short
subfield)
{
return (GETJF_NAME( vJobRec ));
}
};
}
Here is the actual dll header file.
extern "C" {
void WINAPI _libmain ( long JobNo );
void * WINAPI _getjobfield ( void *vJobRec, short field, short
subfield );
};
.....
and here is where I am calling it.
using MyWrapper;
unsafe
{
Class1.myfunc2(null,0,0);
}
It throws the exception here,
System.IO.FileNotFoundException: File or assembly name "abc", or one
of its dependencies, was not found.
File name: "abc"
________________________________________________
So then I tried to acces the Dll in a more traditional way , but would
result in the same error. Here is just a simple console application
that I did,
using System;
using System.Runtime.InteropServices;
using System.IO;
using System.Reflection;
using MyWrapper;
namespace test
{
class Class1
{
[DllImport("kernel32.dll", CharSet=CharSet.Auto)]
static extern IntPtr LoadLibrary(string lpFileName);
[DllImport("wdll.dll")]
public static extern IntPtr
_getjobfield([MarshalAs(UnmanagedType.LPStr)] string s, short i1,
short i2);
[STAThread]
static void Main(string[] args)
{
// Esure current directory is exe directory
Environment.CurrentDirectory = Path.GetDirectoryName(
Assembly.GetExecutingAssembly().Location );
string dllPath = Path.GetFullPath(
@"C:\SoftwareDevelopment\testing\testing\test\test" );
LoadLibrary( dllPath );
Console.WriteLine( _getjobfield(null,0,0) );
}
}
}
*******
******************************************************************************
And in the previous mail I for got ask one more thing
since _getjobfield returns a char pointer how can I read that value.
currently what I am trying to do is
unsafe
{
Class1.myfunc2(null,0,0);
}
but when i DO THIS
unsafe
{
char * p = Class1.myfunc2(null,0,0);
}
It say's can not convert sbyte* to char*.
The thing is that I am sending char* so I do not know where sbyte
comes from
But it throws the exception, Can any one help.
Thanks Tag: change color of TabPage header Tag: 67470
Dll Import problem
I have a Dll written in C. And I want to Import that Dll into my C#
program and use a function in the Dll. In a previous newsgroup article
I saw that I may need to wrap the Dll in a C++ .NET class and then use
that in my C# application. But when I run my program I get an error
saying
System.IO.FileNotFoundException: File or assembly name "abc", or one
of its dependencies, was not found.
File name: "abc"
abc is my wrapper project class library.
here is my wrapper class is given below. The lib name is wdll.lib and
the header is dll.h.
#include "dll.h"
#pragma comment(lib, "wdll.lib")
namespace MyWrapper {
public __gc class Class1 {
public:
static void myfunc1(long JobNo)
{
_libmain(JobNo);
}
static char * myfunc2(void *vJobRec, short field, short
subfield)
{
return (GETJF_NAME( vJobRec ));
}
};
}
Here is the actual dll header file.
extern "C" {
void WINAPI _libmain ( long JobNo );
void * WINAPI _getjobfield ( void *vJobRec, short field, short
subfield );
};
.....
and here is where I am calling it.
using MyWrapper;
unsafe
{
Class1.myfunc2(null,0,0);
}
It throws the exception here,
System.IO.FileNotFoundException: File or assembly name "abc", or one
of its dependencies, was not found.
File name: "abc"
________________________________________________
So then I tried to acces the Dll in a more traditional way , but would
result in the same error. Here is just a simple console application
that I did,
using System;
using System.Runtime.InteropServices;
using System.IO;
using System.Reflection;
using MyWrapper;
namespace test
{
class Class1
{
[DllImport("kernel32.dll", CharSet=CharSet.Auto)]
static extern IntPtr LoadLibrary(string lpFileName);
[DllImport("wdll.dll")]
public static extern IntPtr
_getjobfield([MarshalAs(UnmanagedType.LPStr)] string s, short i1,
short i2);
[STAThread]
static void Main(string[] args)
{
// Esure current directory is exe directory
Environment.CurrentDirectory = Path.GetDirectoryName(
Assembly.GetExecutingAssembly().Location );
string dllPath = Path.GetFullPath(
@"C:\SoftwareDevelopment\testing\testing\test\test" );
LoadLibrary( dllPath );
Console.WriteLine( _getjobfield(null,0,0) );
}
}
}
But it throws the exception, Can any one help.
Thanks Tag: change color of TabPage header Tag: 67468
Windows XP Button vs Framework window form button
Hi,
How could I create the same button and tab of windows XP in vb.net
i found that the button that I create in vb.net is different with windows xp
one.
anyone know how to do that ? pls advise me Tag: change color of TabPage header Tag: 67465
Font Class - a big performance eater?
I was curious if anybody else noticed this fact. Everytime you use the font class, especially creating multiple instances of the Font class in an iteration, there is a significant performance hit. The way I noticed was due to a bug in my code. I have a list class where each item is a separate object with various properties, among which a Font. At some point I wanted to test my list with a lot of items so I made a loop that was creating like 10000 items, but I used a constructor that passes a font too and I used new Font(...). To my surprize and astonishement, it took an average of 7 milliisecond for the framework to create each item. I got into a sort of panic, as I thought that my event model was too extensive or I forget to dispose some objects. It turned up that when I removed the Font object from the costructor with a null, the average time went from 7 milliseconds to 0.02 miliseconds!! That is like 350 times faster... Now I am even worried about any place that I might use the font constructor. Did anybody noticed this behavior in other instances? Does anyone know an optimized way of using fonts
thank you
Iulian Tag: change color of TabPage header Tag: 67459
Changing the default border color/appearrance of WindowsForms
Short of globally changing the appearance of a WindowsForm's border color, appearrance...(like changing the color scheme in Display Properties), is there a way to change simple things like the border color at the application level
Michael Tag: change color of TabPage header Tag: 67457
No-Touch Deployment app.config problem
I'm having a very frustrating problem with a no-touch-deployed
application and its app.config file. When it loads from a remote
server, it cannot get any settings from the app.config file. In trying
to locate the problem, I have tested the following things:
1. The application works flawlessly when deployed via XCopy.
2. The application works flawlessly when accessed on my own machine
via http://localhost.
3. The app.config file is accessible. I can browse to it manually and
download it.
4. The app.config file is being downloaded by the application and
stored in the IE browser cache, but is still not accessible to the
application.
5. Another application - a simple one for testing this situation -
exhibits exactly the same behaviour.
I have already removed the *.config mapping from IIS for the relevant
directory, and, just like before, the app.config is still accessible.
I have enabled anonymous access. Just like before, the app.config is
still accessible.
I have thus concluded that the problem is not with my server
configuration.
Is anyone able to offer any insight into the situation? Anyone else
encountered this problem?
John N Tag: change color of TabPage header Tag: 67451
capturing how a form was closed
I have a 2 form application - the first form opens the second form, which
allows a user to create a file. The first form then needs to do something
based on how the form was closed.
how the code looks
Dim tf As New frmNewLeague
tf.ShowDialog()
If < tf closed using save button > Then
do stuff
else
do other stuff
End If
Is using a global variable the best way, or can you cature how a form is
closed?
Derruck Tag: change color of TabPage header Tag: 67448
Radiobutton databinding:
Hi,
I have a radio button group which I want to bind to a table column whose
value is a string. Based on the string value, I want to checkmark one of
the radio buttons. Here is my code in an attempt to do this. But it fails.
The events don't even fire. I don't know what I am missing. All other
databindings (to text boxes and combo boxes even check boxes) seem to work
fine. But then, those controls don't need datatype conversion either. Can
somebody please help?
CatalogsDV is a Dataview of my datasource. And I have a currencyManager that
positions the data. I have no problems there since other controls seem to
work.
Binding b2b = new Binding("Checked", catalogsDV, Const.CATALOGTYPECOLUMN);
b2b.Format += new ConvertEventHandler(FormatCatalogType);
b2b.Parse += new ConvertEventHandler(ParseCatalogType);
this.rdbtnB2B.DataBindings.Add(b2b);
//
//
//
//
private void FormatCatalogType(object sender, ConvertEventArgs e)
{
if (e.DesiredType != typeof(string)) return;
string ctype = (string)e.Value;
if (ctype == "B2B")
this.rdbtnB2B.Checked = true;
else if (ctype == "B2C")
this.rdbtnB2C.Checked = true;
}
private void ParseCatalogType(object sender, ConvertEventArgs e)
{
if (e.DesiredType != typeof(bool)) return;
bool ctype = (bool)e.Value;
if (ctype == true)
e.Value = "B2B";
else if (ctype == false)
e.Value = "B2C";
}
I am confused with the complexity of Databinding. But trying to learn. I
assume the above event methods are correct, at least logically. I have
placed breakpoints inside both the above events. But they don't seem to
fire at all. Can somebody please help?
Babu. Tag: change color of TabPage header Tag: 67430
data grid Control
Using vb in vstudio .net
I have implement the datagrid control in the application
this is the situation I fill my datagrid with data and the scroll of the
data grid not appear to be anable
but it is enable mydatagrid.enable = "true", but the scroll disappear for
any reason. see de jpg http://www.properlyfit.com/test.html
did some body know why is this happening ? Tag: change color of TabPage header Tag: 67429
Tables don't show in drop down of tablestyle in property window of datagrid
Ok I'm working on a custom IDE though it's using alot of the same technologies as the VS.Net IDE. I drag and drop the datagrid onto the form (root component) and there is a dataset with tables in the component tray. I then just set the datasource to the dataset and then the datamember to the table I desire. I then open the tablestyles and add a new one and hit the mappingname and hit the drop down and nothing shows up.
What I need to find out is how the datagrid populates that list, something somewhere in my IDE isn't allowing the datagrid to populate the dropdown list with the tables in the dataset.
So does anyone have any idea how that list gets populated
Joe Tag: change color of TabPage header Tag: 67427
Capture Lost
I'm about to modify the message loop in my winform to process the
WM_CAPTURECHANGED message and fire an event, before I do I would just like
to check there isn't already an event present for this? Haven't noticed one
so far, but it seems strange to have it left out! :)
thanks,
n! Tag: change color of TabPage header Tag: 67426
Tab Control/Web Browser Control Flicker
Hi,
I have a tab control with a web browser control embedded in the first tab
page. Whenever I resize the tab control the tab itself and web browser
control flicker like crazy. Is there anyway to eliminate this flicker?
Thanks in advance.
Justin Tag: change color of TabPage header Tag: 67424
queueing messages
Hi,
Ok, since I began writing this post, I have figured out the majority of
my problem. I started out without a clue about how to use messages in my
application (not referring to System.Messaging, but to good old windows
messages). I want a Win32 application that runs without a window. I
figured out how to add a message filter to the application before calling
Application.Run(). That solves the problem of catching the message. Now I
cannot, for the life of me, find any references to how to put a message on
the application queue. Any help would be greatly appreciated.
Thanks in advance,
Chris Tag: change color of TabPage header Tag: 67417
Form.AutoScroll Property
.NET Framework Class Library documentation on Form.AutoScroll Property
#1- If this property is set to true, scroll bars are displayed on the form if any controls are located outside the form's client region
#2- Additionally, when autoscrolling is on, the client area of the form automatically scrolls to make the control with input focus visible.
Q: How can I avoid #2 from happening? (override the input focus event?). I do not want the form to recenter when I click partly visible controls
Thanks in advance for your help
mc Tag: change color of TabPage header Tag: 67416
How to develop user-definable/configurable UIs using Windows Forms and ADO.NET?
Hi,
I'd like to create a data entry application in which users are able to
customise the app and it's UI by adding/removing fields from the data entry
form(s), changing the layout of the fields, or changing caption text.
Are there any samples that show how this can be done with Windows Forms and
ADO.NET?. Or perhaps books, articles, blogs or FAQs that cover this
scenario?
Cheers,
Kunle Tag: change color of TabPage header Tag: 67409
Ken
-----------------
"zempit" <shayhandelman@hotmail.com> wrote in message
news:88353C9E-6FFB-4F0E-AB18-967D7B482DF7@microsoft.com...
> How can i change TabPage Header color?