We have an ItemCommand that makes a DataGridItem invisible. This is breaking the alternating color scheme that we have applied. Is there a way to re-apply the style without rebinding or manually setting each DataGridItem's BackColor property?
View 2 RepliesI'm reading in a configuration file which is simply a txt file that configures my Com port and sets some directories. It's basically for the end user to set the interface. I want to give the user the ability to change backcolor properties on my NumbericUpDown property. So when I read in the Config.txt file the end user can change coloring on the General Form. In this case the NumbericUpDown. How to assign a variable for color from my string (from my txt file) that I read in.
View 5 Repliesthe user will pick an image on their hardrive and i will put it on a pdf file using itextsharp with vb.net. how do i manually set the dimensions of the picture?
View 1 Repliesi want custom paper size can i declare in height and width of the paper.
View 1 RepliesI have used My.Settings for quite some time now, in both VS2005 and now in 2008, but never noticed this behaviour yet... I must be forgetting something trivial? I create a StringCollection setting and manually enter some data (strings).I write some code to handle this, and I get it to work.
Then, I manually add some new strings (and edit the older ones) in the Settings page, save the project, and run my code again.For some reason, the last changes have not been saved... Whenever I look in the settings page, I see them there, but my code cannot recognize them..
[Code]...
I am using the following code to write a string to an image in a picturebox and then save it. How can I set the backcolor of where the string is written so I can view it easier?
Private Sub AddText()
Dim TmpSize As System.Drawing.Size
Dim Image As Image = PictureBox1.Image[code].....
I have a treeview containg a hierarchy of fire stations with child nodes being the trucks in the stations. I drag and drop trucks into listboxes that represent incidents. All this has a SQL Server DB behind it. As the trucks are logged into the incident a SQL notification returns the update and I use recursive call code through the nodes to set the backcolor of the truck node to red, (not available). When the truck is released from the incident the same process sets the backcolor back to empty,(now available). The code works just fine until. If you exit the screen and then return back to the screen suddenly the setting of the backcolor no longer works. The code runs as I have stepped through it and the line setting the backcolor is processed but the display in the treeview does not change.I have tried, after finding the node making it the selected node and using the afterselect event to change the color. That worked until exiting and reentering the screen I found that the afterselect event did not fire after setting the selected node.When you enter the form with the tree view the tree view is rebuilt each time taking data from the database and presetting the backcolor for any trucks already involved in an incident.If you completely exit the application and start up again there is no problem with backcolor settings, the problem is only if you stay in the application and exit and reenter the form with the treeview.I am using VS2008 and I have tried the application on Windows SBS 2003 R2, Vista Premium and XP Professional all with the same result.
View 3 RepliesI have added a Microsoft RDP Client Control to a form in my Visual Basic project and I have called it rdpClient.
Under the form load event is:
rdpClient.server = "My_Server"
rdpClient.AdvancedSettings6.ConnectToAdministerServer = False
rdpClient.Connect()
When I run the application, the RDP session is connected but it always connects as a console session (admin). It doesn't matter what I set AdvancedSettings6.ConnectToAdministerServer to. It always connects the same way.
I need to be able to get a remote desktop session to a Windows 2008 R2 server without kicking out a user who is working on the console.
How can i apply a bold style to the text of a text box?
View 4 RepliesIs there a way to set the border style of a Group control ? To my disappointment I can't see such a property ,unlike in VB6 .This is important because it allows the users to create a variaty of frames . I also tried the Panel control ,but that does not have the Text property ...
View 4 Repliesim getting errors and ****.. can someone give me a working code to actually call it
View 9 RepliesThe BackColor of the forms in Visual Studio are a light grey, called Control in the Properties panel. How would I set the BackColor property of a Label to this default color?
View 4 RepliesI'm trying to change the backcolor of a .Net GridView when a certain condition is met. This should be fairly straightforward, but the color change isn't happening. Checking the rendered HTML shows absolutely nothing different in the affected rows even though the text change on the link is happening as expected.There is a default theme set for all gridviews and I haven't worked with that in the past. Is that preventing me from dynamically changing the color of a row or am I missing something else? I'm using .Net 3.5 and have the following in my code behind:
Protected Sub gvPrevious_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) Handles gvPrevious.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
If currentCorrespondence.IsRetired Then //custom object, returning as expected
Dim link As LinkButton = DirectCast(e.Row.Controls(4).Controls(2), LinkButton)
[code]....
From the above code, when I go into the browser and view source, I would expect to see <tr style="background-color: #CD5C5C;"> for the affected rows. Instead, I see <tr> and <tr class="AlternateRowStyle"> (where appropriate). I see absolutely no effect from the BackColor property change. I have also attempted to use e.Row.CssClass with the same result.
How can i change the backcolor property of an object to an rgb value?
i do as it says in the help:
Code:
dim ink as long
ink = rgb(233,126,190)
lblInkPot.BackColor = ink
but i get the error "Value of type "Long" cannot be converted to "system.drawing.color"", but it specifically tells you in help to use "long"...
I set the font size and style using Vb code as i'm designing a Notepad like application, and when i start a new form i want to reset all the settings. Everything else is working, i'm just having a hard time working these out.
View 4 RepliesI have created a Richtextbox, which produces text based on user-inputted variables as well as some basic formatting - eg: name = txtname.text richtextbox1.text = "Hello my name is " & name & "." What i want to do is set the text in the name variable in Italics when it is displayed, like this.
View 3 RepliesIn the game, I'm using labels and the backcolor property to change their living status. I have an array of the labels. However, when changing their life status using a for loop, i've come across a problem where previous elements in the array effect the next ones before the end of the generation. I found somewhere that recommende I use a different array, However, im not too sure how.
For x = 0 To 400
Boxes(x).Neighbours = GetNeighbours(x)
If Boxes(x).Neighbours = 0 Or Boxes(x).Neighbours = 1 Then
Boxes(x).Alive = False
[CODE]....
In on a section of my book about classes and properties. In this example, the author is attempting to show how you can validate a value passed to the property before setting the property. Looks like so far in this book, a couple of things have slipped past the editor, and I think this might be another one...Here's the example:
[Code]...
I have a read only DGV on a tab of my application. I let the users sort by column and reorder columns and select a row. In another part of the application you can edit the data that is in this dgv so when I go back to the tab with the dgv I'd like to refresh the data but keep the user's settings such as column order, sort order, and row selection. Right now I'm just setting the dgv to the new list of items and it resets all of these settings. Is there anyway to persist these after I rebind the data?
View 1 RepliesSo far I only see Property being used as a means of validation in my learning material. I think maybe that's because it might be an easy way to demonstrate its usage. But isn't validation done with some kind of vb validation or on change event? Or do we use property in those events? I want to duplicate those techniques where applicable so I can get better and be more on the same page as the more advanced programmers. I'm working on incorporating classes to my work style. I see that I'm doing lots of repetitive type coding in projects that I want to put in a class. So Property keeps popping up during the learning curve. But I don't want to code Property in a mis-used way just for the sake of using it.
View 3 RepliesI have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?
View 6 Replieshow will I set the font style and font size of my textbox in a programmatic way? Also, if possible, a code that displays the different font style on a combo box.
View 3 RepliesI have the following property in a class:
[Code]....
The problem is that when I try to set the property like this: myClass.Language = "English" The property is set to "English" and not to "<![CDATA[English]]>" which is what I want. What is the reason for that and how can I fix it? When placing a break point on End Set and use the Watch window to inspect the value of _Language after setting the property to "English" it remains "English" and doesn't change.
Given a simple class like this:
Public Class clsOB
Implements System.ComponentModel.INotifyPropertyChanged
Private _Frequency As Double
Private _Value As Double
Public Event PropertyChanged(ByVal sender As Object, ByVal e As
[Code] .....
And then I'd like to do something like this:
Dim
o As
New
clsOB(50, 30)
o = 31
I am converting a 1.1 .NET web app to 3.5, and I've run into a bit of a jam.
One web control has a Property that sets the page title label on that web control.
End Property
When a page with the web control was loaded before, it would set the Property to a given string, like in ucHeader.PageTitle = "This is a string." Now, if I don't remove the lblPageTitle.Text = Value, I get a NullReference Exception.
I'm new to classes. In my Who wants to be a Millionaire application, I have a Lifeline class and I create three instances of it - FF, PAF and ATA (50/50, Phone a Friend and Ask the Audience). Something I do with a lifeline is put a cross over its logo, hence the need for a centrepoint property, which marks the centre of the cross on a form.
Public Class Lifeline
Private ptCentrePoint As Point
Public Property CentrePoint() As Point
Get
CentrePoint = ptCentrePoint
[Code] .....
What happens is that at the "Call Form2.DrawCross(Form2.CentrePoint)" line, the tooltip shows that the FF object's centrepoint property isn't set (as I thought it would be by " FF.CentrePoint = tmpPoint").
I have this simple code,
Protected Sub grdSearch_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles grdSearch.SelectedIndexChanged
TimeOff.Where = "UserName=""" & grdSearch.SelectedValue & """"
End Sub
Doing so causes this error, 'UserName' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly. Near simple identifier, line 6, column 1.
The datasource works fine before the where property is set.Update: I found the issue but I still don't get it.Adding it. in the where clause solves the issue. Like this,
TimeOff.Where = "it.UserName=""" & grdSearch.SelectedValue & """"
I am using a user control using vb.net. It include the program to retrieve the values from database while giving the paramers. When I set the property from my main program i am getting an error "Invalid attempt to call Read when reader is closed." When i gone to the online help i got the message as follows "System.InvalidOperationException (.NET Framework 4)The exception that is thrown when a method call is invalid for the object's current state. InvalidOperationException is used in cases when the failure to invoke a method is caused by reasons other than invalid arguments. For example, InvalidOperationException is thrown by IEnumerator.MoveNext if objects of a collection are modified after the enumerator is created, or ResourceSet.GetString if the resource set is closed before the method call is made. If the method invocation failure is due to invalid arguments, then ArgumentException or one of its derived classes, ArgumentNullException or ArgumentOutOfRangeException, should be thrown instead.[code]
View 1 RepliesI am programatically creating instance of usercontrol as shown below
[code]...
I have two public properties in my usercontorl like clerkName and RespName. How can I set those values in the above code. Intellisense is not showing ClerkName and respName Properties.
i want to set autocomplete textbox, but if multiline property of textbox is true, i can't do it.
View 6 Replies