I have a form which has ONLY three buttons. Somehow they got named Button5, Button6, and Button7.
When I try to rename them Button1, Button2 and Button3 to match code, I get a Dialog box which, if I look at Details, says the Button name is already in use.
Is there something I can do to enable the renaming?
I added a groupbox and changed its heading's font and fore color. The problem is that, when I add a button to this groupbox, it automatically changes its font and fore color to that of the groupbox!How to prevent this from happening?
View 2 RepliesI am using a custom built driver to communicate via Modbus TCP with a Windows CE Controller.
There is a property declared in the driver as a SHORT. I need this property declared as a LONG. I have tried everything I know of to change this programmatically but I am having no luck.
' Declared in the class
Dim dev As vHMIModbusMaster.CDevice 'this is the Modbus Comm Library
Dim WithEvents MBSerial As vHMIModbusMaster.CModbusSerial
Dim WithEvents MBEthernet As vHMIModbusMaster.CModbusEthernet
[Code]....
Address is sent to the event from a timer event. It is the .Memory_StartAddress that I need to be a long.
I come from a VB6 background and have only recently started using .net. The developer of the driver has been very slow to respond and I am having a hard time convincing him that the problem is with his code. The thing is that it works fine as long as I send an address less than 32767.
I have a form with a dropdownbox two listboxes and two buttons on it. I removed a "select" button as I just used the DropDownList1_SelectedIndexChanged, but the event would not fire until I used the suggestion from:Why DropDownList.SelectedIndexChanged event does not fire?
It involved changing the AutoPostBack='true' and EnableViewState="true" properties
So now the DropDownList works but with the two listboxes, the SelectedIndex stays as -1 and does not change even when selected.
[Code]...
I think it has something to do with post backs, page_load or the selectedindex changed event of the listbox, it worked perfectly before I made the modifications.
Let's say I've got a TableLayoutPanel with 50 cells in it. Inside each cell is a separate text label. If I want to change the color of each of those 50 labels at run-time to the same color, is there an efficient way to do it? (so that I don't have to write 50 lines of LabelX.ForeColor = X, etc).
Not that I would mind writing 50 lines of code for this, but I would like to figure out the most efficient way to do this sort of thing, for future reference.
I need to use a Vertical Scroll Bar to scroll through some controls (an array of checkboxes to be precise) on my form. Their number changes depending on the user's requirement during program execution so I need to change the Maximum value of the scroll bar in my code. Also, the SmallChange property needs to be modified depending on the set maximum value (other wise scrolling through the controls will take ages ).
View 4 RepliesI am inheriting my own datagridview (say MyDataGridView) from the standard datagridview control. What I want is that certain properties of MyDataGridView should have a different default value than what its base have. For example, AllowUserToAddRows,
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I m implementing control based security in my application. where i m saving controlname (per form) in database, which are to be restricted. So far I have implemented the security and restricted control get disabled.
Now what i want to do is that i have to prevent that for those controls the "control.Enable" property should not change. how can i restrict that.
I have achieved the functionality by canceling enable=true property in "Invalidated" event of the control. but this is not some generic way. I have to map this event for all controls in all forms :(.
What i really want is that as all my froms are derived from same parent which implements the security. so the parent should some how restrict enable property from changing.
So,HOW CAN I PREVENT CONTROL enable property from changing in their parent class?
I am looking for a code exmple. I have a data combobox and I want the user to be able to search it by changing the text property.
View 3 RepliesThere is no BackStyle property in Visual Basic 2005 ... But I read in MSDN that changing the BackColor of label control will make the background of label control Transparent ... So we'll be able to see through the label control ... I changed the BackColor property to Transparent but it didn't work for me ... BackColor changed to Transparent ... But still I ain't able to see the image behind the label control ... (PictureBox) ... Background color of label still remained the background color of Form i.e. Control color ...
View 6 RepliesI have an Enum file, as shown in first code block. Though it's first time I use an enum file, so maybe it's not correct to use it like this.. My purpose is just to be able to reference a global parameter from anywhere, so I can just type DataInterval.M1, and it will be treated as an integer... or.. will it not ? urther I have a property in my DataSeries class, of type DataInterval. And in this class I also have a bunch of methods Get/Set etc. to do different work on the dataseries (Inherits List(Of BarData)). roblem: The interval property keeps changing unexpectedly every time the GetNextCloseTime function is called.
''' <summary>
''' "Time Frame" of data series
''' </summary>
[code].....
I'm trying to create a button that will hide the panel that I have docked at the centre of my user control. [code]This works to an extent. However, when the bottomPanel is set to Fill it seems to fill the entire control, and not just up to toolStrip1. Can anyone tell me why this is happening, and how to correct it?
View 1 RepliesI have created several simply custom controls and I used them in my app. Now, I changed the background color in a custom control class, because I wanted an other color for this type of control. But in my app, the background of this controls didn't change. Why? I assume, I don't need to place again this controls on each forms to get the new background color, or do I? If yes, this is very stupid in my opinion.
View 4 RepliesI'm trying to edit the text of a toolstripstatuslabel from a module in my project, but whatever I do, I can't change it. [code]But that didn't work either.I tried to change If Me.StatusStrip1.InvokeRequired Then to If Me.InvokeRequired Then, but that didn't help either. I also tried to change the modifiers property of the toolstripstatuslabel to public, with no result.
View 4 RepliesOn my .aspx page i want to be able to show and hide certain panels depending on user selections (radiobuttonlists).
For example in my aspx page i have;
<form id="form1" runat="server">
<asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True">
<asp:ListItem>1</asp:ListItem>
[Code].....
What I've done so fa
Private Sub LogInToolStripMenuItem_Click(sender As System.Object, e As System.EventArgs) Handles LogInToolStripMenuItem.Click
Try
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i made a class library with by adding two .jpeg images and changing build action property to embeded resources and i saved i want to use this two images from this .dll into my application .
View 9 RepliesI have added two text boxes - both multiline.and I have the following.vb Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
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I used to use ADODC with VB6. Once I've set up databindings I can set a text box or other controls to link with a database's specific field by changing the Text property under Data > DataBindings. I want to change the field the text box links to at different times using code. How can I do this?
View 13 Repliesi've got buttons i'd like to highlight on mouseover. how does one change the image associated with a button?
i'd like to use the mouse enter and mouse leave events in order to change appearance of the button when the mouse is over it.
my environment: windows xp pro (sp3), visual studio 2008 pro, (sp1, sdk 1.1)
I have been trying for about a hour to get this to work but I cant. Want to do is change the location of my button when I check my Checkbox I tried If CheckBox7.Checked = True Then Button3.Location = (100, 277) End If is this wrong? It seems like it should work but it doesn't.
View 4 RepliesI'm making a simple text game over the summer for something to do and was wondering if it's possible to change a buttons OnClick functions on the fly?
For example, if they enter a door I want to change the buttons OnClick to call a different subroutine instead of the one that's already predefined in the code.
I've used (buttonName).enabled = false to disable buttons when the user clicks on them but I don't like how the button becomes faded.
Is it possible to disable a button without changing the look of the button?
I made a code that will change the background button when the mouse cursor over it, the user press and release it ,and it work great.The code below is a part of the code I made, which will change the background of the button when click by user.
Method to use:
butclick(sender)
Sub butclick(ByVal butname)
'code reset of button background start
Main.bestassi_bluebut_about.BackgroundImage = My.Resources.buttonbg
[code]....
But I had to reset all of the background of the button first, the picture below explain why I need to do like this:
BEFORE ALL BUTTON CLICKED BY USER:
IF NOT RESET AND ALL BUTTON CLICKED BY USER:
IF WITH RESET:
So is there any better code for this? Because my method seen a bit silly. Is there any code that can change the background of all the button in one time?
Although my code compiles, it does not result in a change of the background picture of button1 here is my current code. Is it possible that my condition contains some error? or is the command itself wrong? [code]
View 1 RepliesI have a problem with my program. I have a form with 2 buttons UP and DOWN. I use this buttons to change the size of the form. The first step works fine. If I press the down button I get MsgBox ("Go Down", vbYesNo,) if I press Yes the form resize from 300 to 600 and if I press no it stay 300. The problem is, if the form is already at 600 everytime I press the down button I get the MsgBox ("Go Down", vbYesNo,) if I press Yes it recycles it self the form goes to 300 and then back to 600 and if I press No it stays 600. What I want is if the form is already 600 and I press the down button it skips the MsgBox ("Go Down", vbYesNo,) and the form stay at 600.
Public Class Form1
Private Sub ButtonUp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonUp.Click
Dim answer As String
If Val(TextBox1.Text) < 0 Then
answer = MsgBox("Go Up", vbYesNo, )
If answer = vbYes Then
For x = 300 To 600
[Code] .....
find out to change the location of a button.Can't find out how to use the Button.Location.Y property.
View 4 RepliesMy current program starts if they press of a assigned HotKey. But, I want to add a button and a hotkey so they keycode I typed in the text box (And after pressing a "change hotkey" button" the HotKey would be reassigned.
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I know this is a really noob question but in my program when my button is enabled true/false I change the colour so i was thinking if there is an easier way to do this? or is the following the best way?
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but i want it to change the password textbox text
WebBrowser1.Document.GetElementById("username").SetAttribute("value", test)
WebBrowser1.Document.GetElementById("password").SetAttribute("value", test)
For Each Element As HtmlElement In WebBrowser1.Document.GetElementsByTagName("input")
If Element.GetAttribute("value") = login Then
Element.InvokeMember("click")
End If
Next