Sorting - Combobox - Auto-complete Behavior For Numeric Values?
Feb 21, 2012
I have a problem with the auto-complete behaviour of comboboxes in VB.NET (with the .NET framework 2.0).I am using a combobox to type in numeric values, and its DropDown list to suggest possible numeric values. This list is sorted in ascending order, for example {"10","92", "9000", "9001"}.The combobox properties are set as follow:
When I don't type anything, the order of values of the DropDown list is correct, in original/ascending order. However, when I start typing something, the suggested values in the DropDown list get sorted (alphanumerically): if I type "9", the list of suggestions becomes {"9000", "9001", "92"}.I would like to prevent this behaviour to get the values of the list in the original/ascending order. I can't figure out how...A possible work-around would be to pad with zeroes the values in the list, e.g. {"0010", "0092", "9000", "9001"} but I would like to avoid this.
I am using VB.Net 2008 application program. I am using DataGridView, where column types DataGridView TextBoxColumn. I have 3 fields. 1 field values are numeric, 1 field values are string and 1 field values are decimal. When I try to sort the string value column, it sorts correctly. But when i try to sort the numeric value column, it sorts as if its string value.
I have a ComboBox in my WinForm which has data from SQL server (used LINQ to bring up the data). I'd like to have an option just like AutoComplete in VB.NET but not only by the first letter but for a search LIKE.
I'm having troubles with my datagridview. Id like to use a combobox that you could type into and (as you are typing) would update the drop down list with the ability to use wildcardsThe list is populated with a table in my database. I know how to do this using just a combobox on a form, but I'm still learning everything with datagridviews.Is there a way to do this with a combobox in datagridview? If not, is there a way to do it any other way (i.e. using a textbox and having something pop up like the autocomplete windows)? I really would like to have the ability to use wildcards with this
I would like a fulltext autocomplete functionality for a Combobox. Built-in autocomplete only filters those items, that match the written text from the first letter. Is there any 3rd party components that has fulltext autocomplete? Or do I need to make functions myself?
i have a combobox with autocomplete to listitems it works very fine if i wrote the first letter it suggests a list of items that starts with this letter. i need to make it work if i write any part of the word not only the first letter?
I have auto complete functionality in combo box ,it works properly but there is little issue ,I made the suggestion list appear for the text length more than 3 chars ,but the list appears after the length of 4 char (when user enters the fifth char of the text) which means when the code executed in the first time the list doesn't appear here is the code in Text_Changed Event
Private Sub TxtItem_TextChanged(sender As System.Object, e As System.EventArgs) Handles TxtItem.TextChanged If Trim(TxtItem.Text) <> "" And Trim(TxtItem.Text).Length > 3 Then 'Autocomplete
[code].....
Note : This issue causes the application exit (sometimes) on Windows XP, but Doesn't affect on Windows 7
I have a combobox (cmbCharge1) that gets populated by a text file. Inside the combobox, the data inside is laid out like this: 41-1A-1303: EXPIRED REGISTRATION Now, autocomplete works fine, if I start typing in the statute (like the 41 part). But what I need is for it to autocomplete based of whats after the: So if I type in EX, then everything starting with EX pops up.
I have a small HR app.First step for user is to select the employee.I wanted a single combobox (autocomplete , drop-down), where the user can start typing either firstname lastname or nickname (these are 3 different fields in an SQL DB).At first, I would have the user check a checkbox near the combobox to select what they would be searching by (first, last, nick name), but then I thought - someone could probably help me with an example of not having to select which name type they are searching for, but just start typing and the combobox would autocomplete based on whichever name ?
I can create a combobox with autocomplete and it works fine. However I want to return a code value instead of the description much the same as a normal combobox where there is a displaymember and a valuemember. Is this possible?
Dear Developers, I have a problem with combobox AutoComplete mode. it appears that when I set the DropDownStyle = simple , I cant select text with the Enter key Or with mouse click can someone please explain me how to bypass this problem?
I want to change the colour of the autocomplete section of a combo box depending on the value of the item. I found the following code to do this for the main drop down section like so.;
Private Sub cbdept_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles cbdept.DrawItem Dim c As System.Drawing.Color
The auto complete dropdown will NOT close, no matter what I do. When I load the form, the dropdown is down with all the options displayed. I can type anything, and the options will narrow down, until an option is selected, then all the options reappear in the list. If I select an option, hit tab, enter, any key or mouse click, the list still doesn't close. If I change the DropDownStyle to DropDown or DropDownList, it works fine.
We have a combo box where users enter a part number. Auto-complete is on and we're in SuggestAppend mode with the source set as ListItems. The part number is in a format something like this:-
XX XX-XXX
2 chars, a space, 2 chars, a hyphen, 3 chars. The format does change slightly for different types of parts but the combination of characters (ignoring the spaces and hyphens) is always unique. The format is just a presentation issue but, for business/political reasons, we cannot 'flatten' it to just the characters.
Our users would like to be able to just type the characters and have the auto-complete work. However, they still want the display to show the spaces and hyphens, both in the list and in the 'textbox' part of the combo when they make a selection. So the list might look like:-
AB KN-TRD AB KN-TTN AB PR-TRD
[code]....
the user types AB, the list now looks like:-
AB KN-TRD AB KN-TTN AB PR-TRD AB PR-TTN
Now the user types K (nb, they have not typed a space), the list now looks like:-
AB KN-TRD AB KN-TTN
At this point it's acceptable for the textbox to show ABK (no space) but as soon as the the user makes a selection the textbox needs to contain the spaces and hyphens from the part number selected.My hunch is that there must be some sort of comparator function in the combobox I can override but I'm struggling to find the details as to how.
I would like the user to enter positive numbers (decimal or whole numbers but no fraction) using combobox. However the user can only enter the numbers using a number key pad built in the combobox. The number key pad will appear once the user click the down arrow of the combobox (I am not sure if there any predefined feature built into vb.net 2005 that has this property). The number key pad should contain the numbers 0-9 and decimal(.).
I have an app that uses a textbox with an autocomplete source and have come to realize that there may be times (to be decided at run time) where the list should be read-only. So ideally at run time if the list was considered R/O and the user's last typed character resulted in a no match, I would throw out the last key and go back to where we last had a match. When not in R/O mode, I would simply create a new entry on the list. Turns out the AutoCompleteStringCollection has a IsReadOnly property which is ReadOnly. So, when would it ever be true? Where does it dervive the value from?
So, the next step was that I thought that maybe a textbox is not the right control to use in this situation; maybe a combobox is. I notice that a combobox has an IsEditable and IsReadOnly properties that seem promising. I swithch the textbox control to a combobox and can't find the properties. I realize they are supported in Framework 3.0 and 3.5 and I am targeting 2.0. So I decide to bite the bullet and raise the target, but still can't access the properties for the combobox; what else do I need to do.And finally, when I am fooling around with the combobox set to 'simple' mode and select an item from the autocomplete list and hit enter, the combobox ends up blank; which seems to be a bug that was reported several years ago and still has not been fixed!
I am automating a datagridview that will hold the name of an object in one column and the number of units in the second column. The datagridview keeps recognising my numbers as a string and doesnt sort them accordingly. Any ideas how to inform the datagridview to sort by numeric?
I am using VB.NET 2005 and my problem is to sort binded DataGridView using numeric sorting (but for strings). As i understand problem is the same as in:http:[url].......or in http:[url].......My DataGridView.Datasource = DataTable. I want DataGridView to be able sorting numericaly when Column headers are clicked. This common function must be very easy, but unfortunately it is not :(. How can i get write sorting? I don't find answer in internet.Link1 is without explanable and i think it is for unbinded DataGridView and link2 is for for C+ or C#.
Examples:
Real Sorting when clicked on "Ports" header (other columns need write sorting too): "COM1" "COM10"[code].....
I am a programmer from Uruguay. I have read the other similar questions about my problem, but nobody has given the answer I need. I use VB .net 2005 and its datagridview. I bind it to a dataset which is populated with a table of MySql. And when I sort the numeric columns, it sorts them as string, not numbers. I have tried casting the data to integer in the sql statement, but it doesn`t work. I changed the format of the column of the datagridview to single or long but it didn't worked either. I really can't believe it is happening, it is a so common need! I thingk It should be totally automatic.
I have an unbound datagridview that has 2 columns. Both columns contain numeric data only and will only go to 55 in count. How do you sort a Datagridview Column in collating sequence? I basically want to sort from 55 down to 1 and 1 to 55 in their respective numerical order.
I have a combobox in a Windows form. I set the properties of the combobox as follow:
AutoCompleteMode: Suggest AutoCompleteSource: ListIems DropDownStyle: Simple DataSource: some binding source
Problem when user enter value to the textbox and open the dropdown and filter out the dropdown list. When user mouse click an item in the dropdown list, it will not select the item and paste it to the textbox. User uses the down arrow to navigate to the item and click on the "enter" key and it will not paste the selected item to the textbox. The only way to select an item is using the down arrow key to navigate to an item and then "Tab" away and it will paste the selected item to the textbox.I want to be able to use mouse click or "enter" key to select an item from teh dropdown list.I want to set the DropDownStyle as "Simple" so user can think it is "textbox" and start entering value to it.
I have an issue where a ComboBox control will change it's Text value when it is resized. Here is some sample code that I worked up:
Option Explicit On Option Strict On Public Class FMain Private Sub FMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load uxComboBox.DropDownStyle = ComboBoxStyle.DropDown
So I was reading a bit on AutoComplete of textboxes in VB.NET, but I can't really understand where these are stored? Is it a fully built in feature, or do I have to write some code for it to work? I've found the AutoCompleteMode and AutoCompleteSource properties of textboxes.But I want to append whatever I've written in the textbox to the autocomplete source. Do I connect the source to My.Settings or something
