I have 2 Forms in a VS 2010 Project. Form1 is the Startup Form and can, with intellisense see Form2, but NOT the Controls on Form2.
Form2 can with intellisnse, see Form1 AND the Controls on Form1.
Why can't Form1 see the Controls on Form2? I've not seen this issue before in VS or VB6.
The error message is :-
Reference to a non-shared member requires an object reference.
The Controls on Form2 have the Property of Friend.
I have a program that allows the user to add steps to a process (tabpages in a control). All tabpages are generated on the fly by duplicating a "template" tabpage and consequently have the same control names such as textboxStepDesc. Here is the hierarchy of the controls to get to textboxStepDesc. Both TabPage1 and TabPage2 are in TabControl1
TabPage1
Panel1
textboxStepDesc
other fields
[code]....
Since textboxStepDesc exists in Panel1 in both TabPage1 and TabPage2, how do I specify that I want to retrieve the value of textboxStepDesc.text on tabpage2 vs. textboxStepDesc.text on tabpage1?
I'm fairly new to VB.NET and I'm currently playing around with user controls, figuring out good programming practices. As far as I understand, to create and use a UserControl, I need to create a project with the UserControl in it, then build the project and use that DLL (add it to Toolbox or otherwise).My question is this: Is there a way a have a project (a Form with a bunch of things on it) that contains a UserControl written in a *.vb file inside that same Project? If you do that, the DLL (in my case) never gets produced, possibly because the UserControl is never used and building it is simply omitted. Is it perhaps a bad practice to do that altogether? It simply makes sense to me to keep a UserControl as a part of the Project that uniquely uses it. Is there a reason not to do that?
View 1 RepliesLets say that I had three TextBox's and they are named TextBox1, TextBox2, and TextBox3, is there a way to do like TextBox And Rand(1,3).Text = Nothing? Something similar to this where you click a button and it will choose at randomly a textbox to clear?I know I could do like Dim Number = Rand(1,3)if Number = 1 Then TextBox1.Text = Nothingend ifif Number = 2 Then TextBox1.Text = Nothingend ifor use else if and such, but I have 12 different textbox's, not three, so, I want to shorten the code, if you could do something like TextBox And Rand(1,12).Text = Nothing that would defenitely be way shorter, can you do anything like that to put together "TextBox" and the number to reference the control? I am not looking to use the full controls list to search for the right control nor to make an array that contains the controls, I just want to reference them without adding extra arrays or searhing for them.
View 2 RepliesI have 2 forms in my project. Form1 does all the grunt work and Form2 is a setup form.
In a module I have placed this
Public myForm2 As New Form2
In Form1 I have this in a routine
For Y = 0 To myForm2.lstCallWatch.Items.Count - 1
The listbox has 12 items in it but the items count is ALWAYS 0
What am I doing wrong to read the number of items in the Listbox?
example:textbox1.text = "frmHelp"...is it possible to go to the form (.show) by simply using the form's name, also how?
View 2 RepliesHow do you reference a variable in another Class?
Public Class Form1
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
TextBox1.Text = "Class1_Text" ' Would like to replace w/correct code
End Sub
End Class
Public Class Class1
Public Class1_Text As String = "Class1 Text"
End Class
I can reference the Form1 data in Class1 but not vice-verse.
This is bugging me. I have a "main" form named frmMain with a DataGridView object named objDataGrid.When a user double clicks on a row or clicks another button, I hide the main form, open a new form and want to reference the values in the row selected by the user but I keep getting an error when I try to access some, but not all, of the datagridview's properties.
[Code]...
Usually I would just do Form.Control.Property but that doesn't work.It just seems overly complicated with public classes, etc.Is there a more simpler way to do this? I'm ready to throw in the towel and just use a global variable at this point.I have the form containing the control I want to reference, frmGenerate which has a textbox called txtCustomerNo.From this form through a button's click event I want to show another form, frmCustomers, and have that form reference the value in txtCustomerNo.
frmCustomers.ShowDialog()
I have a form in VB with many (over 100 - fields, labels, the form itself etc...) items on. I wondered if there was a way of refering to all the items on the form without having to list them all individually in the Handles keyword, which is extremely long winded! I want to carry out the same action wherever the user clicks on the form. At present I have the following
[Code]...
How can I add controls to a form in code and set the properties of the controls using the With statement?Also I would like to know how to add a container control and then add a control to that container.
View 2 RepliesI have a slight problem With an enumaration of child controls on a form. The following code will not get but about have the controls that are on the form. The controls show that the count is correct but when it goes through the loop it skips over some of the controls. If you run it through the enumeration two or three times it will get all the controls a few at a time. The solution uses two forms, one that has the controls and the other that labels are made and displayed on. The Tx is just a index to add a number to the label.name and rename the label. So each label is identified seperately. This works for all the the controls that are seen in the for each loop.
View 11 RepliesI created a class that can take either usercontrol.controls or form.controls as a parameter,how can i pass either to that class? as a property or how?
View 4 RepliesI have a module level sub that I use to clear text fields etc on my forms:
CODE:
The problem I have is in the last few lines of code as I'm not really sure how to access the text boxes contained within the tab controls (of which there are many tabs and many text boxes).
This is the closest I've got but I am getting an "option strict on disallows late binding" error on the tabCtl in the following line.
I have a form. And some controls(such as TextBox,ComboBox,etc.) on the form.Now,I want to store the controls' Text into a .txt file(or any other formarts).Then I want to read the text in the .txt file to my controls.
View 10 RepliesInside a form, I would like to display a pdf file which is already available in my resources (template file "untitled"). In this pdf file, I have some fields which get their values from some texboxes in another form. My aim is, when the user triggers the button to call this form, it should insert the values inside the pdf file and display the output pdf inside the form.I have written the code to an extend but could not finish it myself after my many trials... Now here are the two things I cannot manage:I can use a directory to read the template pdf "untitled1.pdf". But my aim is to use the file inside my resources. can save the output file in a directory but this is not I want to do. I want to display the output pdf.
View 1 RepliesHow would i make so when the user resizes the form the controls on the form resizes to what ever(ex: form become full screen textbox is full screen.
View 2 RepliesI took picture box and some container controls on my MDI form but when I am opening my child forms it going to backside of my MDI forms controls.
How can I resolve this issue because I cannot remove my controls from my MDI form but at the same time I want to use my child form worked properly.
I have a visual basic 2010 form with various group boxes, buttons, and labels. i want to be able to have the form maximized but when i do that the controls stay where they are at and they do not resize with the form. i want them to resize proportionately with the form.
View 1 RepliesI have 10 labels named lbl1, lbl2, ... lbl10
I'd like to change their propriety (using a cicle) with the cicle index
for i as integer=1 to 10 step 1
lbl (i) = PROPRETY 'I know this is wrong but it's what I would do...
end for
I'm using a workaround, but I'm looking for a better way..
[Code]...
Whats the best way to go through all the controls on a form in vb2005? Im writing a program that can edit a string of bytes based on the information on the form. each control is tagged with the hex address it modifies and values it can be, what is the best way to go through all the controls on a form even those controls embedded in other controls?
View 1 Replieshow can i access the controls that i made from another form? i'm also going to also use function (on the same form as the controls) that access that controls?
View 3 RepliesI have created a form Dynamically at run time using this below code but how can i add controls to it.
Dim NewFm as Form
NewFm.ShowDialog()
how can i add treeview to this form and populate with data during runtime?
let's say my app is buit and i want to add xtra controls to the app.[code]...
View 4 RepliesHow would you add Dynamic controls to your form, from an array which size may vary depending on how many controls the user has selected and has been retrieved from a database?
View 2 RepliesI have been working on a VB 2005 applications for the past week and now I'm not able to add a control to the form. It's a very basic app with only one form and I can add the control in design mode but it does not appear on the form in run mode and is on the verge of driving me nuts. Pretty new to programming by the way.
View 8 RepliesI have a simple form. In the top left corner I have a numericupdown box. Under that I placed a panel that holds a picturebox. I did that so I could use the panel autoscroll feature if I resize the picturebox to be bigger than the form. To set this up, I set the panel to dock fill. If I do this, it covers up the numericupdown box. The docking on a form is very, very sensitive. How can I make sure I set this up correctly.
btw - If I place the numericupdown box on the panel and I scroll later. The numericupdown box scrolls away also. I am trying to make sure it stays fixed.
Also - I looked to add the numericupdown box to a toolstrip, but the box is not available to be placed on it - This would be my first choice.
Been playing around with this and simply can't get it to work
I've got a form and I've created a button called refresh. The button is meant to do exactly that. What happens is that when the form loads, it checks the database for values. If it finds values, it creates a dynamic edit box related to the value.
I open the form and it paints accordingly and as I expect it. If I delete a value from the database then click the refresh button, it should re-draw the form and paint the background grey. The logic definitely works because I trapped the bit of code and it does hit the part where it's meant to set the background grey.
Now, I'm not sure I'm refreshing the form properly because all I'm doing within this sub is calling the form on load event: formLRQuadrantSchedule_Load(Me, New System.EventArgs)
This seems to work logic wise, just not doing what I want. So, I tried this (amongst several other things):
Dim dynTextBox As New TextBox()
Me.Controls.Add(dynTextBox)
With dynTextBox
[Code]....
Is there a way such that I could reset/clear the values of the controls in my form no matter what type of control they are, can be controls from control suites like Janus and/or ComponentOne?
I am thinking perhaps I could somehow get their base control types?Here is my current implementation but somehow I need to add ElseIf for the other control types.
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on one of my form, if user press a button then it sync data with another database and it takes time. i show a hidden group box on form which show progress bar of processing. during this process i want to disable all the controls of the form so that user not able to do anything form until process if finished.because most control on the form has validation and if i do me.enabled = false, it disable the control but still use can click on any of text box and then depending on validation event get fired.in a nutshell, want to disable any kind of activity on form.
View 16 Replies