I have a problem with Combo Boxes. When one uses the mouse to open the drop down menu, the text appears to be missing, but when you click on a entry, the text appears in the box at the top of the combo box (the thumb?). Likewise, when the cursor keys are used to scroll through the options, the text appears in the thumb.
View 4 RepliesHow to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
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I have read through some of the other posts and I think what I want to do is slightly different. I have a combo box in VB ExpEd2010 that I want to allow the user to only select from the drop down list. However, I want to be able to set the value in the combo box to something that is not in the list. So the drop down list will have values 1, 2, 3 but I want to be able to write to the same combo box a value of 2.4, 1.2, etc.
View 13 Repliesi have a login form that contains a combo box and a text box and a button. the items of the como box are from the databse while the person selected can only log into the system if the password he enters on the textbox matches the password details in the database.(of the name selected)
my problem is, the second tab contains a couple of textboxes and combo boxes that need to be filled in. but i want the first combo box in the second tab to have drop down value of the name of the person that has logged in to fill in the form.
the person login in the first tab, his name should appera on the combo box in the second tab
Recently started working with VB.NET, and I'm just playing around with the controls and everything. What I want to do, is populate a drop-down list or a combobox (on program load) with data from a dictionary. I'm used to php, so I tried a for each dictionary.items as newitem combobox.items.add(newitem) but I can't get it working. Can someone give me an example of this? And what if i wanted only the key to show in the drop-down, and the corresponding value shown on a label besides it when I make a selection?
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How to turn the combo box/drop down box uneditable.
View 3 RepliesI have in my code the CBN_DROPDOWN command that is sent using a Windows Message, but I want to be able to make the Combo Box List Drop Up as well. Does anyone know if this is possible or how I can do it?
View 2 RepliesI am currently using a DevExpress (10.2) Banded GridView within my Visual Studio 2010 project. It works great except I was have an area where I allow the user to choose which columns they want visible or invisible. I noticed that if I make all the columns within a band invisible the band still remains and gives an empty column in my grid. I was wondering if there is some way to automatically
View 1 RepliesI have a modal form with a single instance of the built-in .NET 2.0 tab control. The tab control has several pages, and on one of them is a combo box that isn't populated until the user activates it for the first time. When that happens, I handle the DropDown event and run a process that takes several seconds, then I add the items returned by that process to the combo box.It works fine, except right after the list portion of the combo box is dropped down, it immediately closes as if some other control took the focus. I've narrowed it down to the fact that there is a tab control on the form, and the process that retrieves items for the combo box takes more than 4 seconds. If I create a completely blank form with just the combo box, I don't see this behavior.
Needless to say, this is strange beyond belief. Any idea why the tab control would interfere with the control that currently has focus?
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I've created a form to handle "frequently asked questions". In the form I have five Drop-Down Combo Boxes and I want the user to be able to select one of the questions listed in the drop down boxes and have it return a "message box" with the answer to the question. Naturally I'll have different "answers" for each question, but my initial efforts have me getting my message box as soon as I click on the drop-down arrow itself, and I don't want that triggered until I click on the specific question.
View 5 RepliesI want a to create a combo box that gets the selectable items from a table and when I save the form I want the selected item saved to a different table. I'm sure this is simple I'm not a database wiz and still very much a newbie.
View 4 RepliesI've found some unexpected behaviour in my ComboBox, which I'm hoping someone can help me with. If focus is lost by pressing the Return key on a form which has AcceptButton set, then after handling the Validating event and cancelling the validation,the ComboBox will not drop down any more. When you click on the drop-down arrow, the list drops down momentarilly then goes away again To reproduce this, create a new VB.NET Windows Forms application. Drop a Combo Box and a Button onto the default form, then add the following code:[code]....
Run this application, click on the Combo Box, enter some random text (e.g. "asdf"), then press Return. After this, click on the drop-down arrow on the Combo Box.I'm using Visual Basic 2010 Express on Windows 7 Home Premium.
See the below
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
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the last value inserted into the access database will be add to the drop down list of their corressponding combo box.
I'm using a richtextbox which contains some invisible text; this is so I can have the user add a hyperlink - the code inserts the hyperlink as invisible RTF text after the link text. The problem I have is trying to delete the hyperlink - if I try and set the selectionstart and selectionlength to select the hyperlink, they ignore the invisible part (which is all of it).
So, how do I select the invisible text so it can be deleted? - I have the appropriate index and length available. An alternative approach is to somehow map the index to find the location in the rtf property of the RTB and delete the text in there;
I have a richtextbox .. i have added some text in that dynamically .. Like when i click on a button some text is added to the richtextbox. Suppose my Text is " Customer R Stepens , age - 40, Gender- Male, Etc CUSTOMERDATA i want to make CUSTOMERDATA invisible... But it should be there in Text , Because i need it for further reference i Made the CUSTOMERDATA font to 0.5! but still it takes some space. that i do not want
View 2 RepliesI would like to move the cursor automatically to a text box when I change it from invisible to visible.
View 2 Repliesthe combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.
View 4 RepliesI need to to able to save multiple text-boxes and a combo-box to a text file. the thing is, when I go to save, I check out the .txt file manually and its saved all in one line, no spaces. when I go to "read" it with the 2nd part (<-----this is a 2 part Challenge) it even reads all from that one line in the text file. What i'm asking is how can I make my text-boxes saved in the text file on different lines. [Code]
View 10 RepliesI wanted to make a little app where you could drop a .txt file on the form and it would show the text in a textbox or richtextbox.
View 2 RepliesMy current project is making a word processor, and i would like to add the function to be able to drag an image from list view, in a dock panel of my form into a rich text box.
View 4 Repliesi want to make like this. when i'm typing in textbox,it must show dropdown words from listbox.
View 5 RepliesI am looking to include in my word processor a drop down font selection button, much like that in MSword, where it shows the installed fonts an allows the user to pick one. It is for a rtb, so I'm not sure if it's possible. If it isn't, could you guide me into coding a button with say the text 'Arial' to change the selected text in my rtb to arial. Also, which fonts are supported by rtbes?
View 11 RepliesI have a little loop what reads in a text file the text layout is[code]...
View 9 RepliesMy program populates a drop-down menu with items dynamically at runtime. The items listed are the currently running windows and applications seen in the Windows taskbar. I was wondering if there was a way to retrieve the text of a selected menu item during runtime and use it to set focus to that application or window (which is the text of the selected menu item). I have looked at using the AppActive function to achieve this. I just don't know how to retrieve the text of the dynamically created menu items. Please keep in mind that I am an amateur coder so my code might look stupid. I have tried the following code block with no success:
Private Sub AppActive(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CurrentlyOpenedWindowsToolStripMenuItem.DropDownItemClicked
AppActivate((Me.CurrentlyOpenedWindowsToolStripMenuItem.DropDown.Items.Item(Text.ToString)))
End Sub
Should I be using the SetForeGroundWindow API instead?
I am trying to select a value from a drop down control before it was text box. I have given the same ID for drop down which was similar to the text box.
Below is the code:
Do
counter=counter+1
tempPanelInputBox = form1.FindControl("txt_" + panelUsed + "_input" + counter.ToString())
Loop untill counter=CounterEnd
and i want to change to get the selected value in the dropdown box.
I'm doing drag and drop from a list view. In my starting list view's ItemDrag event handler, I say (amomgst other things):
data.SetFileDropList(coll)
data.SetText(CurrentFolder, TextDataFormat.Text)
sender.DoDragDrop(data, DragDropEffects.Copy Or DragDropEffects.Move)
CurrentFolder being a string that holds the name of the folder represented by the list view. In the target control's DragDrop event handler, CType(e.Data, DataObject).GetText evaluates to what CurrentFolder was when ItemDrag was executed.But: e.Data.GetDataPresent(TextDataFormat.Text) always evaluates to FALSE.If I replace "TextDataFormat.Text" by "DataFormats.Text" (in both places) the result is the same. I am asking this although my code does what I want, because I feel that I should not call CType(e.Data, DataObject).GetText before I have established that TextData is actually present. So how do I properly check for the presence of the text data.
How do i Drag n Drop text file (.txt or any hoter format ,vbs,bat etc...) to a textbox in VB.NET ? Step by step tutorial with code so i can copy/paste would be nice.
View 7 Repliesam designing a project in vb 2008 but i would like you to help me a code that adds items in a combobox with a drop down and also a code that clears all text boxes in a form if i click a refresh button.
View 1 RepliesI'm new to Visual Basic, and I'm trying to figure out how to make a drop down menu to select the font in a text editor, like Microsoft Word. Does anyone know how I could do that? I'm using Visual Basic 2008 Express Edition.
View 4 RepliesI want to have a text box which allows user to input free text or to pick from list derived from previous entries to this field. I can do it where random number generates to become a field on the combo box for editing but not sure how to use the free text to add to drop down linked to the same field.
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