Adding An Empty, Hidden, Button As The Last Item On The Tabindex ?
Oct 19, 2010
I have a calculator like program which has a function to export a string ('StringBuild') to notepad .The process start OK but it has a funny problem. When I run Process.Start it also keept running a sub that I had linked to one of the calculator buttons.I played around with the code but now it runs a hyperlink that I have on the calculator. I even tried adding an empty, hidden, button as the last item on the tabindex to see if that would work but it hasn't.
Lets say i have 2 button, button1 and button2 , and and tabindex of 1 and 2 respectively . So my problem is , how can i access to particular button and set the button.enable = false by using tabindex?
For example , i have an integer of 2 , then it matches the integer with the tabindex , then it will disable the button2 .
I have a listbox that keep creating empty items due to appending text from a textbox that reads a text file. Could I have it just remove any empty items on startup?
I'm converting an old VB form to .NET, and there a few Buttons which each have a corresponding ComboBox hiding behind them. The previous behavior was that you'd click the Button, and that would trigger the ComboBox behind it, which would then drop down a selection list. I believe the idea was to have a static color and text label (which cannot be a selectable option in the drop-down list), with the functionality of a ComboBox.
Now, in VB.NET, clicking on the Button (which is directly over the ComboBox in the form) won't trigger the ComboBox dropdown anymore. However, if I make the ComboBox visible enough to click on, it will trigger the ComboBox.TextChanged event, and show the drop-down (they're set to the DropDownList style). I've set the event handler to handle both that event and the Button event. I've tried Button.MouseDown, Button.MouseClick, and Button.Click -- none of which have worked.
I did find the SplitButton control option suggested here, which would probably do the job, but I don't want to have to integrate a non-native control for just 3 buttons. I don't really want to mess with the control template, either
Again the code clicks the button, but doesn't save the information so I figured it has something to do with the hidden value. I've never seen this problem before so I don't know where to go from here.
what is the most robust method for adding a empty row (to select "nothing") to a ListBox?
Dim List = Enumerable.Repeat(New TABLE With {.Text = "", .ID = -1}, 1).AsQueryable().Union(From t In mainctx.TABLEs) ddlMangelKategorie.DisplayMember = "Text" ddlMangelKategorie.ValueMember = "ID" ddlMangelKategorie.DataSource = List.ToList
But this has some drawbacks:wordy must explicit write the Type (TABLE in this case), so i cant wrap this in a function have not found an solution, which works with anonymous types I.e. if I add a From t In mainctx.TABLEs Select Text=col1, id=col2 to the query, this method does not work anymore.
I am using visual studio 2010, service-based database. I created a simple table and created an edit form for that table. But when I save a row and then clear the text of a textbox (which holds a decimal value), it simply does not let me tab off the text box or save it. I put a ErrorProvider to see whats going on. It says "Input string was not in correct format". But I allowed this column to be null in my table. So how do I fix this error. And by the way, it does not happen for all text boxes.
How someone would select an item from a list box and click a button and have that item go into another listbox with it's price? I seem to be stuck on this part.
Here's my code:
I want to select the first option from the first listbox and I want to put it into another listbox along with the price of that item on the same line in the listbox. I can't seem to figure out how to that.
Public Class Form1 Const dcmPRICE_STRESS As Decimal = CDec(595.0) Const dcmPRICE_TIME_MANAGMENT As Decimal = 695
Now I can't use cmbReplcmnt.Text because what I actually need is the value of that SelectedItem
So problem is, if the user leaves the combobox as blank, it throws a null exception.I decided to use the IIf function then:classEquipmentItem.ReplacementTo = IIf(IsNothing(cmbReplcmnt.SelectedItem.ToString), classEquipmentItem.ReplacementTo = "", cmbReplcmnt.SelectedItem.ToString)
Unfortunately I still get the error I tried using a Try-Catch for it and it worked, but I don't want to rely on the Try-Catch, so I was wondering is there a another way to work this through?
I am reading a txt file and displaying the contents into a listbox but it generates an empty listbox item at the bottom of the listbox. I am splitting the textfile each time it finds a new line in the txt file; .Split(vbNewLine) The problem there is always a blank line in the txt file at the end and so generates a blank list item. How can I remove this blank list item from the listbox? Is it best to try to remove the blank line from the txt file first or the empty list item from the listbox after the file has been read?
I have a hidden web browser, two text boxes, and a button. I can add the login information to the forms on the web page, but how do I login? Heres my code so far
[Code]....
Basically I want to grab the ID of the sign in button (the name/id is SI) and click it. I've tried RaiseEvent(Click) and Click() but neither work...I'm not sure about the syntax and how it works in general....I don't even know if I'm doing it right.
I want to make 5 attachment options in that 4 out of the 5 are hidden.but when he clicks "more attachment" link it will show the other 4.Im using ASP.NET with VB?
I have a form with 6 buttons, if I select the form and hit TAB it starts at TabIndex 0.When I keep hitting TAB it goes to TabIndex 1, 2, 3, 4 and 5.After another hit on TAB it should go back to 0, instead it goes to 3, 4 and than 5 again and again.
First of all I want to thank "codeorder" for sharing me this code. Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Is there a way to set the enabled property of a combo box using the tab index?
In my program I have two combo boxes next to eachother. When a certain option is selected in the first combo box, I want the second to enable itself. Obviously this is easy to do by using combobox2.enabled = true but I have 10 rows of boxes that need to do this and I want to put all the functionality into one sub. It's possible to read the tabindex into a variable by using VAR = sender.tabindex and then add 10 to that variable (The box that needs to be enabled will always have a tab index of sender + 10) but I can't figure out how I'd use the tab index to enable it. If only I could just type sender.tabindex(+10).enabled = true
I have created a custom control that has a few labels and a button on it. In my main program i dyanmically add this control to a stackpanel. When i add the control i add a few events for it by doing th e following:
Dim newqueue As New UserControl1 AddHandler newqueue.MouseDoubleClick, AddressOf PrintMessage
How would i go about adding an event for the button.click for the button in the custom control?
My button gets a commandargument of empty string even though the commandargument gets set. I have verified it gets set to the correct ID in debug mode, but then when I go to access this commandargument later in the repeaters ItemCommand event the commandarguments are empty string. And I have no idea why. I end up getting a sq foreign key exception because it is inserting an ID of 0 from the empty string values. There is no other code regarding the repeaters buttons that would be resetting it.
i post a new thread with same in my previous topic Using If Statement. If my textbox is empty or no value then clicking a button will show a message box..and if trying to put a value will do event.inserting a record. all i need to know how can i make it that thing.if i try to load without any if statement and trying load it btnok will load a insert record. Just like a LogIn form that will pressing a ok button with no value will display a message box Invalid Username
How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
