.net - Go Through All The Controls On A Form In Vb2005?
Sep 28, 2011
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?
How do I detect a left-to-right and right-to-left scrolling, whether I slide the scrollbar or click on the right or left scroll arrow? I saw that there was a RightToLeft property but I don't know how to use it.
I've been coding an application over the last few months in VB.NET 2005 and have noticed that as the application is growing in size, I'm beginning to experience some strange behaviour in the IDE.For example : I have a tabcontrol docked in a form with 5 tabs. Each tab has a panel docked to it with several buttons, text fields, layout tables, datagrids etc. Sometimes immediately after saving the project, one of the tabs will go "white" and show no controls at all. There might be the odd outline of a control ( like you get when a control is hidden behind another ) but the only way to get them back is to close the project and open it again. It seems to be getting worse as the number of controls dropped onto the forms increases. Looking in the form designer.vb file I see that there are currently around 8000 lines.Is it possible that the designer file is so large that its having trouble loading/refreshing the view in the IDE ?
Someone please explain this to me like you would to a complete idiot.I want to make a shaped form according to an image.The transparency key only works under 16 bit graphics and we all work on 32bit. Then the entire background shows.The clipping is also very un-neat.So how do you shape a form neatly according to an image WITHOUT using transparency key so it will work in all graphic modes?
I have to prepare about 125 or 150 Loading Slips for various Mines to move carting to our various Factory daily into Windows Form of ERP System.
Just like here: Date:18-12-2011, Requirement No.001/11-12, Mines No.OP-128, In Charge Name: Karsanji Plot=0,Satta=0,Dump=6, Transporter:Ghanshyam Roadlines Destination:Madhapar Here Some Button to generate/modify records: Add,Edit,Save,Delete,Previous,Next,etc If I distribute 15 trucks for Ghanshyam Roadlines to move carting from OP-128 to Madhapar then I will have to entry 15 times into Windows Form of ERP System for creation loading slips numbers from 1 to 15. Here all my data to input 15 times into ERP is same, so why is it not possible to create multiple reports with single entry form?
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.
I 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.
I 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.
Inside 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.
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.
how 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?
How 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?
I 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.
I 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
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.
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.
i have a form with many dynamic controls. i want to add an item to a listbox ( by the way, to find this listbox i'm using 'tag'. if someone have any other idea i'll be hope to hear but that's not the problem) in order to do so i use this
For Each ctl As Control In Me.Controls If TypeOf ctl Is ListBox Then ctl.items.add("i want to add this line")
[code]....
and items is not recognized and this eror massage apear: 'items' is not a member of 'System.Windows.Forms.Control'.
I have developed a project on vb.net (2008) which contains some forms those are more or less same looks.I want to incorporate a tool bar and status bar and want to color backgroud and some control I can insert or incorporate as per my requirement on every form. I want to do completely in class which will be my base class and the class will be inherited from other class whatever modification i do in the derived class. I can't get confidence therefore please give me a sample code regarding such type of process.
Is it possible to get all the controls of a particular type in a form without using any loop and without iterating all the controls (recursively or not depends upon the design of form).
I have the issue with loop is: there are a lot of controls in my form (more than 500) and it is taking a lot of time in executing the function