VS 2005 Way To Allow Values Not In Combobox ListItems
May 19, 2011
I have a DGV bound to a bindingsource with a column that uses a DataGridViewCombobox, that has a DataTable for it's datasource. This all worked fine at first.But I removed a row from the DataTable that the DGV combobox uses as its datasource. Now when I try to load the form that contain the DGV, I get an error "DataGridViewComboboxCell value is not valid" for each row that contains the value I removed from the DataTable.It seems the value of the column must be a member of the combobox Listitems. Is there a way to allow values not in the combobox ListItems. I don't want the combobox listitems to be locked in for the life of the application.
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Jan 25, 2011
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?
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Mar 27, 2009
i want to display two values from two columns of same database table..i could get only single value..eg...i want to display emp_name and emp_id in the same combobox...i dun want to use another combobox for emp_name...when displayed it should be like "emp name=XYZ and emp id=E123".
[Code]...
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Aug 19, 2010
I have a combobox which contains few objects in Items. When the user selects any item from the combobox the values from the Object member variables are stored in the textboxes on the form.The user will change the values in the textbox and then he will select another item from the combobox.
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Jun 30, 2010
How do I get the other values of the selected item of the combobox so that I can save it to my table? This in my function
Using cmdTeachers As New SqlCommand("SELECT TeacherID, Teacher, Dept " & _
"FROM tblTeacherFile " & _
"WHERE Dept = 'HS' ", cnn)
And I have this on formload
Me.TeacherBindingSource.DataSource = Me.GetTeachers()
Me.TeachCombo.DisplayMember = "Teacher"
Me.TeachCombo.ValueMember = "Teacher"
Me.TeachCombo.DataSource = Me.TeacherBindingSource
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Apr 21, 2009
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(.).
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Dec 27, 2011
I have a combox and a datagridview on a form, the combox filters the datagridview but doesnt have Distinct values. I found this on one of your post. I have a Products DB Table with ProductID, Series, Description and UnitPrice, I am trying to filter the the datagrid using the column Series with the combobox but i get multiple values of the same thing in the combobox, where i would like to make it Distinct.[code]
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Aug 16, 2011
When I run code the below, the If statement never resolves to 'True'. It always shows 'Assm' as the SelectedItem, even if I check all the checkboxes. So how do I allow 'Assm' to be checked by default AND have the code-behind see that the other checkboxes are checked?
<asp:CheckBoxList ID="qualityChecks" runat="server" RepeatDirection="Horizontal" TabIndex="8">
<asp:ListItem Text="Assm" Selected="True"></asp:ListItem>
<asp:ListItem Text="Qual"></asp:ListItem>
[code]....
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Nov 22, 2005
I have filled my listview with items, most of which have different backcolors, now this worked fine with .Net 1.1 with VS 2003 but now I have "upgraded" to VS 2005 and .Net 2.0 they are no longer being drawn with there backcolor at run time (both in debug and release)...However, I have a function that will export any listview into excel and this keeps the column widths, row colours and row fonts all in tact, and low and behold the colours are correct in excel, so why are the colours not being draw on the control?
Oh, and I have just noticed.... Literally while writing this post, if I resize the window (which forces the listview to change its column widths to stay looking correct) in a "vertical" direction it draws the colours on and off..... this is a very strange bug, it also draws the colurs if I min the window and open it again.......So I recap... when I load up the listview the colours are not drawn, if I resize the window so that the control grows in height the colours flash on and off, and if I min the window and open it again the colours are there...
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Jul 25, 2011
I'm new to WPF and databinding. I need to bind expander header to a List(Of Names) and expander content to a List(Of Services). I'm even more confused after reading MS tutorials on databindings (how and where to use staticResource, Path, etc.)
[Code]...
How do I bind header textblock to the person name and the inner listbox item to their services ?
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Jun 24, 2009
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
[Code]...
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Mar 8, 2009
I have a page that contains some dynamically created controls (TextBox and DropDownList). When a postback occurs, the TextBoxes keep their values, but the DropDownLists lose their ListItems. This is quite confusing, since the page level DropDownList also keeps its ListItems.
<%@ Page Language="VB"%>
<script runat="server">
Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs)
[Code].....
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Feb 22, 2009
I am trying to loop through a listview control, storing the listitems and all of the subitems.
Dim SurgProcedures(frmaddforms.lvSurgProcedures.items.count) as String
Dim frm As frmAddForms
With frm
[code]....
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Apr 21, 2009
I have simple columns and their respective sums. However, I exclude 1 particular value from each sum, like so [code]...
Now I need to exclude another value ("Awaiting Progression") from a second column called "PROGRESSION".
Since I already exclude value based on 1 column called CATEGORY, how do I change my =Sum(Code.ExcludeOthers(Fields!CATEGORY.Value,Fields!ACTION_PLAN_NEW.Value)) to exclude a value from the PROGRESSION column if it's = ("Awaiting Progression") ?
i.e. How do I exclude multiple values, depending on values in 2 columns in SSRS 2005?
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Dec 4, 2009
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..
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Jan 10, 2010
This is so confusing, i've been trying all day but it doesn't seem to work.
IN my database i have Vendor tables, i have 2 records
VendorName
a
b
I'm trying to get the comboxbox to get "a" and "b"
[Code]...
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Nov 7, 2011
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
[code].....
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May 29, 2010
i am developing vb.net windows application. i have a combobox. In that i added items in its properties as follows
<- - - select- - - >
school
hospital
office
others
when i run my application i need to display the selected item as "<- - - select- - - >" but it display empty.....
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Nov 28, 2009
Im trying to set values for every combox item for example if I have an item name of "currentyear" it should return the year.
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Mar 20, 2010
I want to setup values for a combobox in vb.net through code. But I don't know what's the code for setting it up. I want to do something like this:
if combobox1.selecteditem="1" then
combobox2.values=("x", "y", "z")
end if
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Nov 6, 2009
I display some values in a combobox that come from an array.By default the selected index of the combobox should be the first item.
If cboAtt.Items.Count = 0 Then
For i = 0 To nums(att)
cboAtt.Items.Add(cat(att)(i))
Next
[code]....
This works perfectly, but now I want the combobox to display the new (initial) value that is swapped, except than when I do that the cboAtt_SelectedIndexChanged event is triggered which results to an infinite loop --> crash.
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Oct 24, 2009
Is there any way to type a value to comobox which is not on the list of item in the combobox I have tried but it always throws an exception
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Oct 27, 2010
Here is my code.
for example TextBox1.Text= 12,34,45,67,67
Dim process_string As String() = TextBox1.Text.Split(New Char() {","})
Dim process As Integer
[Code]....
i want to add values in reversed order in combobox2 that are available in combobox1
but when i run the application the second combobox remains empty and not showing any value.
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Mar 17, 2010
When I update but do not really made any changes to the value and press the update button, the data becomes null. And it will seem that I deleted the value.I've taught of a solution, that is to add both combobox1.selectedtext and combobox1.selecteditem to the function. But it doesn't work.
combobox1.selecteditem is working when you try to alter the values when you update. But will save a null value when you don't alter the values using the combobox combobox1.selectedtext will save the data into the database even without altering.But will not save the data if you try to alter it.-And I incorporated both of them, but still only one is performing, and I think it is the one that I added first:
Dim shikai As New Updater
Try
shikai.id = TextBox1.Text
shikai.fname = TextBox2.Text
shikai.mi = TextBox3.Text
[code]....
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May 1, 2012
I'm using ms access 03 to fill a datagridview no problem. I have 4 fields(id, first, last, points), but I just want to fill one in a combobox I have. Here is what I'm using to fill the datagridview:
Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsPC #6My Documentsstudent.mdb")
Dim sql As String = "Select first,last,points from student"
Dim oledbAdapter As OleDbDataAdapter
Dim ds As New DataSet
[Code] .....
How could I get a combobox to just display just one field, like idk if I'm explaining myself correctly, like a SQL statement look like this:
Dim sql As String = "Select first from student" but just for my combobox.
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Mar 7, 2011
Is it possible to have a different selection of values in the 2nd combobox depending what was picked on the first combobox? For example an American state is picked in the first combo box and the second combo box loads the cities in that state? I'm just using a basic form in Visual basic 2010 there is no database behind it.
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Jun 3, 2011
My code is:
sqlsub = "SELECT distinct field1, field2"
sqlsub += " FROM tbl I
Dim da As OleDbDataAdapter
Dim lsdataset As New DataSet
[code].....
My prob is how should I bind the combo with field1+"("+ thpr+ ")" thpr is the string i get from function by passing field value 2 from query my combobox should be displayed as field1 + (thpr).
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Nov 4, 2008
I want to check if two combobox values are equal. The comboboxes are in a datagridview.I found you need to use datagridview_EditingControlShowing to add a handler to the comobo boxes for selectedindexchanged. I can do this with this code.
Code:
Private Sub dgridRegisters_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles dgridRegisters.EditingControlShowing
Dim combo As ComboBox = CType(e.Control, ComboBox)
[code]....
However, the message box comes up for every combobox in my datagrid when I change the index, not just the cmbPort2. I would like to have something like this...
If cmbPort1.selectedindex == cmbport2.selectedindex then
'do something
endif
..but it doesn't seem possible.
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Jan 22, 2009
How I could go about checking a typed value in a combo to the values in the combo box. I am making a system to select lockerID and Supplier ID I want the user to be able to enter the value in the combo box as well as select the value form the list in the combo box. Here is the code I have been trying.
If cboStockID.Text = "" And cboStockID.Text <> cboStockID.Items.ToString Then
MsgBox("Please enter Stock ID")
Exit Sub
ElseIf cboSupplierID.Text = "" Then
MsgBox("Please Enter Supplier ID")
Exit Sub
End If
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May 19, 2012
the combox is bound database table,but it is not displaying the contents of table in database,instead it is displaying corresponding null values(blank).it is showing just "select" and the blank spaces corresponding to the number of items in database
here is my
Function combobfill() As DataSet
addconnection.Open()
Dim selectstring As String = "select materialsname from materialtype_table"
[Code]....
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