Make The Combobox To Read It's Own Values From A List?
Sep 29, 2010
I'm trying to make an invoice program, but i made only the form view (blush).
1. how can i make the combobox to read it's own values from a list, but a list in which i can add or remove items?
2. i need a field which is like autonumber in Access for the invoices'numbers and it has to increase it's value every time i push Button2
3. I used a datagridview to write the goods I will sell, but the last column has to show the result of (column1*column2) but it's always empty. I'm using VB 9.0.
I'm trying to populate a ComboBox with all column headers I have in my Excel -file... Dim Polku = fdlg.FileName Dim XL_App As New Excel.Application Dim XL_WB As Excel.Workbook = XL_App.Workbooks.Open(Polku) Dim XL_WS1 As Excel.Worksheet = XL_WB.Worksheets(1) with ComboBox1 [Code] .....
All I get are 10 values that are: System.__ComObject
Even though I should get in the dropdown list: No: Title Dept. Item Spec. Size.
I was useing VB a lot for some years ago and now I have started again..then, think I was useing VB3 or VB4 there was a property on ComboBox and listboxes that allows only to select the values in the Combox.. Not able to write own values..
I have a combo box and a datetime picker on a form that I do not want a user to be able to type in or select. I need both controls to look as if they are enabled with the default backcolor and black font color. How can I do this?
How Do I show the values from the dataset to the text box based on the selection from the combobox list i already populated the combobox my code is. [code]
I am working on a project which I want to share with some people, but since I wont give away my source, I want them to be able to customize the values (By values, I mean like if I have a button that says Donate, just an example, then I want the application to read the link from a .xml file, or an .ini file, so people can edit it)
I dont know if that IS Values, but it sounds like it to me.
Here is my Donate Button code (STILL JUST AN EXAMPLE)
Private Sub Button5_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click WebBrowser1.Navigate("http:mydonatepageSTILLJUSTANEXAMPLE.com")
I'm trying to make the combobox get suggested values from a website using the current keyword they have in the box already. For example if I have O, it will show up values that the website has returned with O. The problem is how can I make it work where whatever I type into the combobox, it will get the values, set the datasource and make it show up. So far I have this:The problem is whenever I type something, I cannot get it to set it to the new datasource without the comboxbox becoming the first value in the data source.
Dim pop As New List(Of String) pop.Add("Koolaid") pop.Add("kIMKY") pop.Add("KoolPaid") ComboBox1.DataSource = New BindingSource(pop, Nothing)
How to make a combobox only list based on user's input via autocomplete?For example, if user input "A" the combobox only lists all names start letter "A".If user input "AM" the combobox only lists all names start first two letter as "AM" and so on.
1 I have a list box that has url's in em now some of this sites I'm intrested in reading news so what I want is this
When I click button i want my program to check urls that I have inb my list box and if the website has word News I want that to show up in my program by eather 1. display News found in my url list box next to the url that has word news on site or 2. if it finds news for my progy to refresh the page and only leave me resaults that have words news on it's website so basicly it has to read 1 word from site if it finds that word I want it showing next to url or I want it for it to auto refresh my list box and only live me resaults that have words news in it
I have a DEM file(Digital Elevattion Model File) and I am trying to open the file,where we have Latitude and Longitude values inside the DEM file.And, Now I have opened the file using Filestream and Read the file using BinaryReader.But, I am having a trobule in getting the values of Latitude and Longitude.I am getting Byte values randomly as 1,202,31,271 etc.But, we dont have latitude and longitude values more than 180,and also I am not getting 16 bit UInt values.For example, the values should be like Latitude 20.00416666666667 and Longitude 39.99583333333333.So,read the correct Byte values of the DEM file.The code I have used till now is:
Dim fs As FileStream = New FileStream("C:UsersadminDesktopHeader and DEM fileE020N40.DEM", FileMode.Open, FileAccess.Read) Dim rd As New BinaryReader(fs) Dim convertDB As UInt16 For i = 0 To rd.BaseStream.Length
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.
I'm making a combobox on a form. I want the combobox to have a list of choices from a table in a db. The two columns are a String and a Date. I want the date column to only show the year. I'm hoping I have the code right as it is above, but I'm not positive I've done the whole date thing right.
I have filled a DVG with information and added another column to index(8) pragmatically Now i want to create a combobox with values depending on values in other cells on the same row so each row will have a combo box with different selections. below i have placed the code and hoped someone would have some input on how to approach this. i have tried datagridviewcolumn but that fills every row with the same information regaurdless of a if statement
I am making a custom ComboBox, inherited from Winforms' standard ComboBox. For my custom ComboBox, I set DrawMode to OwnerDrawFixed and DropDownStyle to DropDownList. Then I write my own OnDrawItem method. But I ended up like this:
How do I make my Custom ComboBox to look like the Standard one?
Update 1: ButtonRenderer After searching all around, I found the ButtonRenderer class. It provides a DrawButton static/shared method which -- as the name implies -- draws the proper 3D button. I'm experimenting with it now.
Update 2: What overwrites my control?I tried using the Graphics properties of various objects I can think of, but I always fail. Finally, I tried the Graphics of the form, and apparently something is overwriting my button.
Here's the code:
Protected Overrides Sub OnDrawItem(ByVal e As System.Windows.Forms.DrawItemEventArgs) Dim TextToDraw As String = _DefaultText __Brush_Window.Color = Color.FromKnownColor(KnownColor.Window)
I have a combobox..... When a user clicks on the list inside the combobox my webbrowser opens to the selected items website.how to make the combobox go back to the original text of the combobox?
Example: Combobox list ---- Select Item ---- Royals Mets
[code]....
When the user see's the screen the ---- Select Item ---- is visible. When a user clicks a teams name it opens the teams website and the name stays in the box. I want it to go back to ---- Select Item ---- immediately after they click a list item.
I have completed my project and i have one remaining thing to settle... I want to make the combobox not to be able to write yourself. for example there are 4 options ,"A","b", "c","d".If i type w in the combo all the project is ruined!i want not to be able to type at all to prevent this...Which property should i change?
I wish to make a project where a teacher views a list box with a list of students of a class. When he selects a name from the first list box the second listbox would change its data to show the grades for that one student.
I want users to be able to select from thevalues in the combobox, butI dont wanna allow them toedit or write new item in the combobox i.e I want to make it Read only like what we can do in the textboxI changed its DropDownStyle to DropDownList But when I do that its text becomes blank(the drop down list with appropriate items is present)
I have a pretty weird one here, would it be possible to read a column of a text file in to a combobox and to display the directory after the contents of the combobox?[code]...
I have an XML file, and a ListView control shows the data through aDataGridView control as shown below.Now,This Japanese web site helps me understand how to get cell values.And I'm trying to populate ListBox and ComboBox with the values from ListView's Column 2.
For j As Integer = 0 To ListView1.Items.Count - 1 ComboBox1.Items.Add(ListView1.Items(j).SubItems(1).Text) Next j
