Restting All Checked "type" Controls In Containers
May 27, 2011
I know how to do it individually but not sure if it's possible to merge into one.
I have 6 containers that contain either Checkbox or RadioButtons.
Struggling sending the type of control and also wondered do i really need to call clear 6 times? Can't VB search each container for a control that can be checked?
vb
#Region "Form Events"
Private Sub ClearPizzaCreation(Of t As Control)(ByVal root As Control)
For Each ctrl As Control In root.Controls
I'm working on a winform which contains several controls like textboxes, radio buttons, datagridviews... All of these controls have been added to a main group box called gbDataEntry. My problem is when the user is seeing the form, I set gbDataEntry.Enabled = False but I want to enable some controls like DataGridviews so the user can scroll them. After disabling gbDataGridview I set DataGridView1.Enabled = True but it seems that the datagridview does not respond to this line. Why?
As i'm learning more and more about developing ive just got my head around creating classes and modules, i started wondering about something to do with configuration of applications where deployment is in a more diverse environment say in a company where different branches dont need access to all parts of a program, so i thought id throw the question out there in a basic sense and get some feedback. so i can go off and do some more reading and learning.
So the scenario in my head is like this.
So we have for arguments sake FrmConfig which is the master configuration form, then we have FrmMain which is the root menu our application general user interfaces with. So here based on what options are checked as enabled in FrmConfig effects what controls (like buttons/menu options) are enabled in FrmMain.
I am looping through all controls on my form and for all checkboxes, I want to see if they are checked. I cannot get the Checked property when doing this. Am I doing something wrong?
I was wondering if anyone had any resources on vb controls, I'm just a beginner so please excuse my little knowledge. I have been having troubles with the checked listbox control, selectedindex is the method for displaying the checked list position yeah? so what is the method that i need to use the actual vaue that is stored in the checked listbox ( the string ) ?
if i type in textbox 1,3 then checkbox1 and checkbox3 will be disabled not checked !The coding i provide below is working but ,...it chekec the cjeckoxes according to the text in textbox i.e (1,3) then checkbox1 and checkbox3 will be checked ... but i want when i type 1,3 in textbox then checkbox1 and checkbox3 will be disabled and remain unchecked .
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim separator As Char = "," Dim allIIDs As New List(Of Int32) If TextBox1.Text.Length <> 0 Then
I migrate between C++ and VB.NET in my coding ventures... which leads to the occasional confusion about when something is by value or by reference in VB.NET.Let's say for example that I have an array of MyObject which is populated with a bunch of objects.
dim MyArr(5000) of MyObject. let's say that the information from this array travels throughout various data structures:
dim MyList as new List(of MyObject) for i as integer = 0 to 5000 step 1000 Mylist.add(MyArr(i)) next
Under the above scenario, I believe everything is by reference. If I extract an entry from "MyTable" and modify its MyObject Members, I think that the original in MyArr will be modified.However, I have run into situations where I thought something was by reference, and it was by value. Are items always added to containers by reference, or are they sometimes added by value?
How do I go about looping through all the controls within a container, and all the controls in the container of a containing control, and so on.
[code]...
The following only retrieves -Panel and none of the other controlsFor Each cntrl As Control In Me.Controls Next How can I retrieve them all in a For Each loop without an If/Then for every level in the stack?
[code]...
This is so far the best method I found of doing this.
I am trying to make it so when I use Me.Controls("Timer1") for example I can access specific commands for a timer such as Stop() Start(), I tried CType() and typed in "Timer" as the type but it says the control type can't be converted to the "Timer" type.
i'm working on a program and i'm working with panels, and i'm very frustrated because I want to bring a panel to the front of the form but because of its parent it is locked into another panel.... in the properties for the panels there is no Parent container option though the only way i know how to modify parents is during runtime like this Panel1.parent = Me
Been doing web development for the past 2 years - so I'm a little rusty (and I just switched to VS 2010 from 2008 so maybe something new is available)... I have 4 toolstrips floated to the top of a form. And I have a picturebox below - filling the whole form. Unfortunately the picturebox is "behind" the toolstrips. I want to split the form so that the top of the form holds the 4 toolstrips and the picturebox appears below them.
What would be the proper container to put this mess into so that autosizing is the easiest? The toolstrips will most likely be "turned off and on" during the running of the app.
How can I place a BG image on the tabs only (title area of tab)? I am also finding it dificult to change the tab text font, since it is changing the tab body font not the tab titles........??
my form contains a checked list box [data coming from the database] a combo box [bind to a database table product] and a listview [was previously a listbox]
I have 4 checkboxes and 1 textbox in webform if i type in textbox 1,2 then checkbox1 & 2 will be checked !
directly after if i type 3,4 in textbox then the all 4 checkboxes will be checked But i want the checkbox will be checked accorcding to the data displayed in text box ..if textbox1.text =1,2 then only checkbox1 and checkbox2 will be checked and others are remain unchecked ...
and if i checked checkbox3 and checkbox4 then only 3 and 4 will be checked and others are unchecked...
how to do that in page load event I want to do this with 50000 checkboxes ..and more.... which displayed in my webform
[Code]...
But if i type 1,2 in textbox then checkbox 1 and 2 would be checked and agin i type 3,4 then checkbox1,2,3 and 4 all the checkbox will be checked ...but i want ...what everi type in text box only that checkboxes will be checked and others will remain unchecked.....
project im working on for my course,the idea is a photo printing machine that loads up 4 images if usb stick is checked and a different 4 if memory card is checked. and then whatever image is selected appears in the big picturebox on the left [URL] i have 2 print size options set as radiobuttons, radiobutton 1 = 6x4, which costs 25cent per photo, radiobutton 2 = 8x10, and is 50cent per photo.i also have a textbox which will display the number of copies to be printed So here's my dilemma, when the print button is selected alongside one of the radiobuttons i want it to display a message saying something like this "you have selected (whatever the amount of copies)of this photo sized 6x4, or 8x10 depending on which radiobutton is selected, and i want it to display the total cost which is the number of copies multiplied by the rate for the print size selected, then an option saying "Do you wish to proceed" Yes or No.
I did something similar to this in class earlier in the year but cant remember it, it was an airline booking program with 3 types of payment cash, visa or mastercard,upon booking a message popped up saying there is a certain percentage discount for using visa or mastercard
I've got a checked listbox on my form which saves the checked items to a spot in my database on the .ItemCheck event.But there's a problem, when I begin checking items, I check the box and click off it, but it doesn't save. (This is if I've only chosen one item)
If I choose two or more items it will save, but unchecking them takes a lot of clicking around to figure it out.Is there a better event that I can use? I've tried the SelectedIndexChanged and that has the same result, there's a lot of clicking around in the checkboxes to end up with the desired selected items, and it does not allow a single item.
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
In a listview with check boxes, there are two fields being loaded, ID and Lastname. With this information I want to get the ID of the person whose box is checked with this sub:
I trying to get what I think should be a simple thing. I have a checked treeview. I need to get the text of each checked node into a string. For the life of me I can't get it. I am trying to loop thru all the nodes and see if they are checked but I keep getting a "object reference not set to an instance of an object" but I don't know why.
Dim value As String Dim node As TreeNode Dim i As Long
I have a small piece of code that iterates through the controls collection on a panel (below) Everything works fine until I want to focus on a control that doesn't support the selectall method i.e. a datetimepicker. Is there any way of determining the type of control and not call the selectall method when the type is datetimepicker. All my other controls support it so that's the only one I need to exclude.
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
I have a WPF windows project with a base Window, and then a series of user controls which I want to add at runtime based on a string from a file. I'm reading a string say "controlA" and i want to create an instance of the user control with the class name "controlA" and then add it to a base window. I want to have a constructor, but for now I would just like to see it work without.I need to do this: read a string (which is the user control type), create an instance of a user control based on that string, and then add the instance to the current WPF window. I've been playing around with Reflection.Assembly, getType, System.Activator.createInstance, Invokemember, CreateObject, and a few others. I can't seem to get it to work.
