How To Modify Control Properties From A Backgorundworker
Mar 16, 2011
I've been dealing with this kind of problem in many cases now, I try to edit the properties of a button or a label or smth else from a backgroundworker or a timer and I would get the "Cross-thread operation not valid: Control 'Label' accessed from a thread other than the thread it was created on." Now what I am dealing with in the backgroundworker is 3 things: reading/writing to labels' names, editing the checked state of some checkboxes and changing the enabled property of some buttons/pictureboxes. Check the screenshot for more info.
View 2 Replies
ADVERTISEMENT
Dec 16, 2010
Attempting to follow instruction page 51. I have clicked form1 and clicked Alphabetical and Text is highlighted. The properties window is in Alfa order and the btotom reads "The text associated with the control". Instructions indicate modify the properties and table4-1 shows what should be modified. HOWEVER this data does not appear! How do I call this sata to modify. Soory for being a dunny. Trying to learn Visual basic 2008.
View 3 Replies
May 25, 2010
I have a WPF Keyboard Application, it is developed in such a way that an application could call it and modify its properties to adapt the Keyboard to do what it needs to. Right now I have a file *.Keys.Set which tells the application (on open) to style itself according to that new style. I know this file could be passed as a command line argument into the application. [code]...
View 1 Replies
Oct 6, 2010
i need to do something as the old scholl on vb6, create a control array, i need to put 50 listviews controls and when the form is initialized start asigning properties since i will drag items to each one of those grids, im goin to make a dragdrop event to handle all the 50 controls, dont like the idea of adding handles c1, c2,cn, c50 but whatever, is there soemthing easy to create a routine to change properties and add columns to each one control dinamically?
sample
for x=0 to 50
control(x).property = true or ""
next
View 2 Replies
Apr 27, 2011
I'm making a control and I am trying to finalize my design time properties grid. I have several List(of Class) items as public properties and when I click on the design time menu (while testing the control) there is the word "Collection" and a button with an ellipsis (...) that brings up a neat pop up with the buttons Add/remove and all of the public properties of the collection's class on the right hand side. Basically for a non-collection instance of a class (with public properties) I'd like a similar button to show up. I know I could put all of the properties in the main control class and group them, but I like the pop up box feature. Anyway to duplicate this? (think font grid item etc.)
View 3 Replies
Mar 23, 2009
i have 2 windows forms, form1 and form2.form1 has a label called "label1" and a button called "button1".This button when pressed, opens up Form2.Form2 has a textbox, "textbox1" and a button. This button, called "button2", when clicked does this:form1.label1.text=textbox1.textThis used to work PERFECTLY, but now it does not work! i dont know what went wrong, and ive made a lot of changes to the project so i cant track the last time it worked.
View 4 Replies
Nov 6, 2008
I have my own class of graphic objects, and now I'd like to allow a user to right-click on one of those within the application and see a properties window. Is there a pre-built dialog or control for displaying properties at runtime? I'd like to have something just like the IDE properties window button for my application.
View 4 Replies
Mar 30, 2010
We are trying to modify a program to control a usb relay device. Essentially what the program originally does is give you a series of check boxes that you check to make the relay fire. We tried to modify the code so that the box is checked after 5 seconds using a counter and an if statement. It works, but only partially, what happens is the check box shows a check, but the even that is normally triggered does not happen. [code]
View 4 Replies
Aug 31, 2009
For example how do u delete on row in a table?how do you remove a <img /> entry?
View 4 Replies
Aug 31, 2009
For example how do u delete on row <tr> in a table <table>?how do you remove a <img /> entry?
by remove means not just set the innerText to?
View 4 Replies
Nov 25, 2009
What I've done is create a User Control Library (Project) and I've added a single User Control to that project. The control contains a single FlowLayoutPanel, and I created a Property on the control itself to pass the FlowDirection from the Control to its FlowLayoutPanel child.
Build, reference, component appears in the Toolbox and everything works fine, but the property on the control does not appear in the Properties window when I go to edit it at design time.
View 6 Replies
Dec 11, 2009
I would like to be able to set Control visual properties such as color, boarder, flat style, etc. on the base class of the control so that as I add new instances of the control, each instance inherits the visual properties of the base. I have tried using Application Settings but it appears as though I need to reference an application setting manually each time I add the control to a form. This is a Windows Form question.
View 4 Replies
Feb 28, 2011
I tried it and get an error but maybe I'm tring the wrong way. Can a usercontrol inherate an application defined class ie.. could you inheritance a classic rect class into a user control to add the hight and width properties to the control without having to do all the coding all over again? Currently I just declair a private instance of the class within the control and then encapsalate. It would be nice if I could just inherit all the functionality of my classes into controls designed to implament the classes.
View 1 Replies
May 1, 2011
Is there a way to override/modify/create the left-side shortcut buttons in the SaveFileDialog or OpenFileDialog controls? Defaults are "My Recent Documents", "Desktop", "My Documents", "My Computer", "My Network"... how would I change "My Recent Documents" to "My Super Cool Folder"?
View 1 Replies
Jan 27, 2011
I am attempting to update an existing winforms application, that was created with a dataset control on all the winforms pages. I have ported it from VS 2008 to VS 2010 and I need to update the database section and connect it to the SQL backend using traditional code method.In the Solution explorer, when I click on the Dataset files, and click "Exclude From project" I am unable to build the project.Is it advisable to comment out the code lines that refer to the dataset in the .designer.vb files?
View 1 Replies
Jun 23, 2010
Is there anyway that I can access all the properties of a control during runtime and
get their values. I dont want to specify the property name. I should get the all the
property names and their values. It is something like reflection namespace in VB.NEt
View 1 Replies
Dec 30, 2008
I have a problem: I want to code a program which can get properties of controls in orther program or other project (VB.Net project). I don't know where to begin?
View 1 Replies
Apr 6, 2009
i had designed a form with various controls added some days ago. Accordingly i had coded the controls. And today i didnt like the look and feel of the form, so i copied the controls for a while and then re-pasted it over a new control (panel). Now when i double click to see the underlying code of the control generates a new event. I mean i had a button as Button1 and its underlying code was under the Button1_Click event. But now its is like Button1_Click_1 which i dont understand. Is it due to formation of control array or what? I want the button to be remapped to Button1_Click event.
View 4 Replies
Jan 12, 2012
I am able to bind my datasource to the textblock for the display text. However I would like to set the Fontweight to bold if the value of the checkbox foo is checked. I'm trying to use IMultiValueConverter to accomplish this, but have had no luck so far.
<CheckBox Name="foo"/>
<TextBlock Name="bar" Text="{Binding Path=Name}">
<TextBlock.FontWeight>
[Code]....
View 2 Replies
Apr 16, 2009
In our IDE, for example, Visual Studio, if we display the properties of a System.Windows.Forms.Button control, we see some properties that expose anoter set of properties. For example: FlatAppearance, Font, Location, Margin, etcetera.I would like to do something similar in a custom control.I know the code behind is wrong, but here is an example of what I´m trying to do:
Public Class StateOfMyCustomControl
Public Enum EnumVisibility
Visible
[code]....
In my IDE, in the properties window of my custom control, I would like to see my property State, with the possibility of display it to set the properties Visibility and EventManagement.
View 1 Replies
Jun 7, 2011
I have a blank winform. A textbox control with name textbox1 being added to the winform. During the form load event, I retrieve 2 string values from database and store these values into TextboxName and TextboxValue variables of string type.
I use TextboxName variable to store that textbox control name (i.e. currently TextboxName = "textbox1") and TextboxValue variable to store that textbox's text (i.e. currently TextboxValue = "Hello world"). My question is how to set the textbox1.text property without have to resort to following code:
If TextboxName = "textbox1" Then
textbox1.Text = TextboxValue
End If
how to set the textbox1.Text property without have to use IF...Then construct?
View 1 Replies
Oct 27, 2011
I have several controls on a page that contain the word "DATE" in the ID. These are specific text boxes for dates only.
Here is an example of what I need to do for each text box control with "DATE" in the ID:
Birth_Date.Text = fnLib.formatDate(Birth_Date.Text, 1)
Anniversary_Date.Text = fnLib.formatDate(Anniversary_Date.Text, 1)
Rather than do this for every single control, is there a way I could do this in some kind of For Each Loop?
View 1 Replies
Oct 21, 2009
adding the properties of a control to its parent? Without having to rewrite all the properties... For example, if I have an user control with a button inside, and I want to have the "text align" property of the button, in the list of properties of the usercontrol. If not, is there a way of making the child control of an usercontrol editable?
View 1 Replies
Sep 3, 2009
Checking User control's properties?
View 4 Replies
Sep 20, 2011
I've built a custom user control in VS2010, incorporating two datagridviews, and asplitpanel - The idea is that there is a "Main" datagridview control, and the second is an internally controlled grid that (when shown) displays the Columns which are set as invisible. This allows the user to drag the columns onto the main grid, in order to display the columns.This all works fairly well. I've set the modifiers property on the Main DataGridView to public, so that by and large, the developers can make use of the control just like a normal DGV (albeit with an extra level to the code).
I've also created dummy events for each of the events that the DGV normally raises, and pass them through the usercontrol, so that the developers can attach to the DGV events as normal. Again, this appears to work fine.Unfortunately, I've run into a problem. I'm trying to set the RowSizeMode to DisplayedCells (or indeed any value). If I try it in the designer, it appears to retain the change until I run the application, after which the property reverts back to normal.
View 8 Replies
Sep 15, 2011
I'm wanting to dynamically create some controls relative to controls already placed on the forum at design stage, how do I find the locations of the controls that are already placed?For example, I have a label called lblDateTime, its location is (13, 167) and its size is (65, 13).In my code, I want to place a new label below this label.I've tried to set the location and size properties of the new label using the location and size properties of lblDateTime.Size works, no problem, but the location of lblDateTime always returns as 0,0.[code]I want to set lblMessage DateTime. Location to (13, 180), but I'm actually setting it to (0, 13)What confuses me most is that Me.lblDateTime.Size is returning the correct values, so it's not like my code isn't finding the control.
View 5 Replies
Feb 16, 2010
i been trying to figure out how to get the control name and other properties of a dynamically created control. I have actually dynamically created a label andnamed it. how do i retrieve its name and other properties.?
View 3 Replies
Apr 10, 2012
I want to do a class that have properties like font, which will have other properties, such as name, size, unit,bold.
<TypeConverter(GetType(ExpandableObjectConverter))> _
Class TestingClass
'Some property here
End Class
View 1 Replies
Aug 15, 2011
How to reset the properties of the form as well as all of the control properties values when i click a button.
View 5 Replies
Sep 21, 2009
Greetings. I have a DataGridView control in a form, and as of a day ago, when I click on the control, I get *no* properties listed in the Properties pane of the IDE. The properties pane is totally blank. Neither properties nor events are visible. I have tried everything. Prior to this, the properties and events displayed normally.
Other controls' properties are displayed when I click on them, but not the DataGridView control. If, after clicking on my DataGridView control, I use the combo-box on the Properties pane to look at any other control's properties, they come right up. If I then select my control's name (DataGridView1) in the Properties pane combo-box, the IDE crashes completely and I have to restart.
I tried a repair re-installation. The same things happens.
I can set properties etc. programatically, but that sorta defeats the point of an IDE, not so?
View 5 Replies
