ComboBox - How To Resize Dropdown Area Based On Item Length
Jun 11, 2011
Since we have to resize the combo box dropdown area based on the combo box item length, used the drawstring() to add items to combo based on the item length. This gave us the below issue: On moving the cursor on the drop down area the font color and the background color are back hence the text is not readable (i.e. the whole item becomes black).
Below piece of code is used to achieve this,
Private Sub cboClient_DrawItem(ByVal
sender As
Object,
ByVal e
As System.Windows.Forms.DrawItemEventArgs)
[Code] .....
We tried changing font color and the dropdown area backcolor on selecting a particular item. How to make the text readable (i.e. the font color should change while if we scroll on the item).
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Dec 6, 2010
I've created an ownerdraw ComboBox (used as DropDownList only) in Visual Basic .NET 2010. I inherited ComboBox and set DrawMode to OwnerDrawVariable. The control itself and the dropdown items are drawn with Paint and DrawItem.
The control works fine so far, but there is one thing i was unable to change: When i click on the combobox to open the dropdown area, this new area has a very bright border color (nearly white) which I want to change to black. I've uploaded an image of the current control and how I want it to look like:
[Code]...
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Nov 20, 2009
im trying to make a a rogram that will calculate the area of a rectangle based on the lenght and
width given by the user
[code...]
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Jul 14, 2011
I've been scouring the net, and can't seem to find a solution that works.I have a page done in ASP.NET (in VB) that has a drop down list populated by an SQL query.My dropdown list gets renders as follows (information slightly altered):
<select name="ddOptions" id="ddOptions">
<option value="--Select--">--Select--</option>
<option value="test">test</option>
[code].....
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Oct 18, 2011
Im trying to format the length of a DataGridViewComboBoxColumn based on the length of the longest string in the comboBox. Here is the code I currently have but it only formats the DataGridViewComboBoxColumn based on the users previous selection in the comboBox.
Is there a way to have the DataGridViewComboBoxColumn at the length of the longest string in the comboBox? Here is my code.
Private Sub comboTest_SelectionChangeCommitted(ByVal sender As Object, ByVal e As EventArgs) Handles comboTest.SelectionChangeCommitted
Dim senderComboBox As ComboBox = CType(sender, ComboBox)
[Code].....
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Jun 17, 2011
I am new to vb.net and I am using visual studio 2010. I have two comboboxes on a form, each combobox is set to DropDownList so that a list of items can show in the combobox, but no text is allowed to be entered.
For combobox A, if user chooses item 1, the list of combobox B should be updated accordingly. I think this is quite common on a lot of applications. But I do not know to implement it. I even do not know the keyword to search for the relevant property or event handler.
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Mar 11, 2011
net/watin application and I am trying to select and item from a combobox on a client's website. I can use watin to drop the list down and select (highlite) an item from the list but the selected item will not populate the textbox above. It seems like watin's .select() is not triggering an event to fire.I can work around this by writing in the first letter of the item in the combobox and use the hypertext feature to select the item but this is not ideal.
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Mar 7, 2010
I have a comboBox that is populated with a dataset. The values are:
KG - Kilograms
LB - Pounds
and so on.
So when the user clicks the comboBox in the DropDown the user will see:
KG - Kilograms
LB - Pounds
and so on.
[Code]...
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Apr 20, 2012
i need some help with this problem. i have seen some solutions but written in C and im not that good to convert from C to vb.net.Well i want to 'do something' when i mouse move at an item of the combobox dropdown list.like when i move the mouse over "jkl" make the button1.text = "jkl"when i move the mouse over "def" item make the button1.text = "def"
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Jan 10, 2012
I want to populate the combobox based on the selected item in the first combobox. The following code is written in vb.net 2008
Public Class Form1 Sub fillcombo()
strsql = "select * from device"
Dim cmd As New OleDb.OleDbCommand
cmd.CommandText = strsql
cmd.Connection = con
[Code] .....
For this code I am able to populate the first combobox and when I select the specific item in combobox then the second combobox shows only the first element of that item.
In MS access 2007 I have created 2 tables:
1) Contains the device ex:computer
2) Contains the device and its parts ex: cpu, monitor so here the device has duplicate values
Table names are device and parts.
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Feb 2, 2012
i have a databound combobox using VB2010 and MS access as the DB.. When i click on a button, the selected item in the combobox will be deleted from the database and no longer display in the combobox...
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Oct 5, 2009
How do I remove the area in a dropdown menu where the menu item icons are typically displayed?
I just need to remove the grey area in this particular dropdown, other dropdowns of menu items in the same menu bar need to retain this area because they do have icons.
Edit: This is WinForms.
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Mar 26, 2011
When I will click the suggested text shown in the combobox it will disappear.My Combobox btw is connected in a database.If I type Kev then kevin and kevsky will show at its suggestion then when I will click any of it ,the combobox text will be empty or will clear what I typed ("Kev") and will not show what I clicked.[code]
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Nov 22, 2009
I created a new ShellAppBar window (similar to the taskbar) but i want it to replace the taskbar. My question is: i can remove the taskbar but can't resize the desktop's working area, so my appbar is sitting above the taskbar (which is not even there).
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Feb 10, 2009
I can't believe how difficult this is, after spending 5 hours searching the closest I find and understand is[code]...
I just wish to resize a dynamic textbox to the string length of the text
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Aug 12, 2009
I am trying to implement a controlling design logic that prompts the user for a length and the area to calculate until he or she enters a number less than zero in the length to end.So far I have it where I believe it�s doing the calculations but it�s not ending when I input a number less than zero or zero.
Sub Main()
' Declare Length As Float
Dim Length As Double
' Declare s, c, t As Float
[code]....
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Jun 5, 2011
I have a picture box on a form that changes size as needed. Both by resizing the form and by code.How can I resize the form automatically if I resize the picturebox in code. The client area of the picture box should not be clipped.Right now the picture box is set to dock fill, but if the code resizes it, the form does not follow it. Is there a binding somewhere I can use?
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Oct 18, 2010
How to get length of a particular item, for example item no. 5, in a combo box?
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Nov 2, 2009
We have a GUI that displays a radio selection box (3 options) that are the three sites where our hospitals are. We need to dropdown located on the form to fill with only the locations based on the selected radio option.
Here is the code behind we have so far (sorry, VB)
[Code]....
For the record the Location dropdown is currently databound but its a static SELECT statement which brings us all the locations but we'd prefer it to be cleaner if it only returned the locations based on Site. We are using Visual Basic 2008 Express Edition for development.
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Jun 12, 2012
I need to create a sample question types web form in VB.NET which allow user to the following:he user selects the control type from dropdown (TextBox, RadioButton, ListBox etc). Generate controls dynamically based on the control type on the webform.It will always show the TextBox (where user writes the question) and (generated control - TextBox, RadioButton, ListBox etc) and save those values to the database.
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Aug 28, 2009
I want to populate the dropdownlist ddVerantwortlich1 with the people with the proper credentials based on the selected process step ddProzesss chritt1.It doesn't work if I want to change it using datasource and databindi have to manually loop through the table in the dataset returned from the query. then it works. but not otherwise.[code]
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May 25, 2011
Is it possible to select a value of a drop down by its dynamic index that is returning from another function whereas selectindex = 2 (generated dynamically)
selenium.Select(Id, "index = SelectIndex")
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Nov 2, 2011
MVC 3. Vb.net. Part of my app generates PDF files using Itextsharp. Some strings are too long to go onto the background image correctly. So I basically need to split this string when its over 26 characters long and when it splits it cant split in the middle of a word. from there I will use newline to add the string to the right to the next line... I did start bulding the function that I will pass the string into test for length and then pass back the string after it finishes.
Private Function stringLength(ByVal _string As String) As String
If _string.Length < 26 Then
_string.Split(
End If
End Function
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Oct 20, 2011
does anyone know how I can format the width of a DataGridViewComboBoxColumn based on the size of the string which the user selects?
my code is the following, Im way off!
Private Sub colwidth_SelectionChangeCommitted(ByVal sender As Object, ByVal e As EventArgs)
If (comboTest.SelectionLength > 0) Then
[Code]....
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Jul 20, 2010
how to split a string into an array based on it's length?Say if I want the length to be 350 then every 350 chars in a textbox will be split into an array like [code]
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Aug 29, 2009
I'm making a user control, and I manually draw the text string, but I can't seem to keep it centered. I need it to stay centered no matter what the font, or string length.
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Dec 23, 2010
how could I resize a window based on option? Its a pretty simple dialog box that I only want to display additional controls if an option is selected, and resize the window.
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Jan 27, 2010
I am using VB.NET together with ADO.NET to create a program. I have set my TableAdapters as needed and bound the correct tables-columns to my comboboxes.My problem though is this:My combobox2 item is bound to a datatable. The table adapter's Fill method (the select command basicaly) includes a public variable in the where clause to fetch the correct results. I ll put some code here to clarify it a bit more.Public Class Frm_inv
[Code]...
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Aug 5, 2011
I have a dropdown bound to a datatable. I'm trying to insert a new item at position 0, but when the control is loaded, I don't see the new listitem or any errors.
Public Sub Page_Load(ByVal sender As Object, ByVal e As eventargs) Handles Me.Load
If Not Page.IsPostBack Then
loadRegistrantAbstracts()
[Code] .....
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Mar 22, 2012
How can I if there is a drop box in a webbrowser and it has either male or female it will auto select male?[code...
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