combobox

Overriding paint of combobox using WndProc

Hi, I've overriden the WndProc of the ComboBox and I am drawing my own combo box, a code snippet is below: Protected Overrides Sub WndProc(ByRef m As Message) MyBase.WndProc(m) Select Case m.Msg Case &HF Dim g As Graphics = Me.CreateGraphics If ComboBoxRenderer.IsSupported Then ...

Silverlight Combobox data binding : Basic and quick way ?

Please tell me the basic and quick way to bind a Collection(List,etc) to a combobox and handle the selection changed event and get the selected item. ...

Synchronised Comboboxes

How do I get 2 synchronized comboboxes so that changing the index of the one automatically changes the other one. ...

Possible to capture ComboBox "DroppingDown" event?

I have a System.Windows.Forms.ComboBox on a form and I want to capture the event just before the ComboBox's menu is displayed (something like "DroppingDown"). I can't seem to find a suitable event. Is capturing this type of event possible with a ComboBox? ...

Auto populate a combobox

Hi Here i am again. I have 3 comboboxes on my form ie cmbPart_number, cmbPart_name and cmbEOnumber. All i want to find out is how the cmbPart_name and cmbEO_number boxes are autopopulated when the user makes a selection from the cmbPart_number. What i have tried so far is adding part_name and EO_number in the row source SQL query and in...

Dynamically binding data to combobox in Windows mobile 6

Hi All, I am very new to windows mobile applications.Still i have done Message interceptor and GPS related windows mobile applications.But i want to develop a form with dynamic field values.As we have combo box control in windows,we can bind data from database dynamically.Like that i want to bind data dynamically to the combo box in win...

Weird behavior caused by using .Net ComboBox properties SelectionStart & SelectionLength in "DropDownList" mode

We have a sample application with such handler for a combobox in "DropDownList" mode: private void comboBox1_Leave(object sender, EventArgs e) { comboBox1.SelectionStart = 0; comboBox1.SelectionLength = 0; } the code above behaves differently depending whether the application has CALLWNDPROC hook loaded or not. If application h...

How to populate combo box with values in MS Access 2007

I have a database with 3 tables. Manufact: ID, Name, Decription Model: ID, Manufact_ID, Name Order: ID, Manufact_ID, Model_ID, Quantity, Date, In Access I would like to have the normal table/datasheet view for Order which gives the following output ID Manufact.Name Model_ID(combo box) Quantity Date 1 LG W3000H-BN ...

Null in Flex ComboBox

How can you make a ComboBox where the user can select null? If you simply create a combobox with null in the dataprovider, the value appears but the user cannot select it: <mx:ComboBox id="cb" dataProvider="{[null, 'foo', 'bar']}" /> Is there a way to make that null selectable? A workaround is to add an item into the dataProvider th...

How can I change the width of a JComboBox dropdown list?

I have an editable JComboBox which contains a list of single letter values. Because of that the combobox is very small. Every letter has a special meaning which sometimes isn't clear to the user in case of rarely used letters. Because of that I've created a custom ListCellRenderer which shows the meaning of each letter in the dropdown ...

Printing data from dynamically added combo boxes?

Hi there, I have gotten the code to work so that when I press the button, "Add More", it adds more combo boxes to the form with the names dayBox1, dayBox2, and so on. This is the code for that: private void addMoreBtn_Click(object sender, EventArgs e) { //Keep track of how many dayBoxes we have howMany++; ...

Select the item in combobox with key/up in WPf

How to select the items in comboxbox using key up/down? I tried to handle it in PreviewKeyDown event. But it is not working. ...

VBA for MS-ACCESS: how to populate a combobox with a recordset?

There is some litterature available at expert's exchange and at teck republic about using the combobox.recordset property to populate a combobox in an Access form. These controls are usually populated with a "SELECT *" string in the 'rowsource' properties of the control, referencing a table or query available on the client's side of ...

WPF DataGrid sort by ComboBox field

I have WPF datagrid with combox column (ID is real value, Desc is displayed value) and when I click on header of that column automatically sorts by real value (ID). I want to sort by displayed value. My WPF datagrid has 4 columns: IdPerson, DescSchool, IdSchool and School. Column "School" is comboBox with this values:ItemSource = schoo...

Why can't I set SelectedIndex on a data-bound ComboBox?

I have two ComboBox elements, one with databinding and one without. On the one without I can set the SelectedIndex fine. But on the one that is databound, if I set the SelectedIndex, it says, "AG_E_INVALID_ARGUMENT". But if I set it to a value in the ViewModel (SelectedIndex="{Binding SelectedCustomerIndex}") then it says "Object refe...

Why does Path=SelectedItem.Content work for ComboBox in WPF but not Silverlight?

The following code works fine in WPF. In Silverlight it gives me the error **Invalid attribute value {Binding ElementName=WhichNumber, Path=SelectedItem.Content} for property Text. ** How can I get this to work in Silverlight? <ComboBox x:Name="WhichNumber" Width="100" HorizontalAlignment="Left" Margin="10" SelectedIndex="0"> ...

Resize Combobox in win32 (change width)

I have the following code to generate a ComboBox: HWND h = CreateWindowEx("COMBOBOX", "Text", CBS_DROPDOWN | WS_CHILD, WS_EX_CLIENTEDGE, ParentWnd, 0, 0, 200, 24); The combobox is created on my form no problem, however if I try resizing it with the following it won't work: SetWindowPos(h, 0, 0, 0, NewWidth, OldHeight, SWP_NOMOVE | SW...

Windows.Form ComboBox Cannot set the SelectedValue Property of Unbound Control

I cannot set the default combobox selected value for an unbound combobox. Here is my code: System.Console.WriteLine("Current Tag Org Id = " + CurrentTag.Org.OrgId); ddlRUC.SelectedValue = CurrentTag.Org.OrgId; System.Console.WriteLine("ddlRUC selected value = " + ddlRUC.SelectedValue); Here is the output: C...

What does ExtJS ComboBox triggerAction: "all" really do?

I tried to create a simple ComboBox: var combo1 = new Ext.form.ComboBox({ store: [1,2,3], renderTo: document.body }); But written this way it acts strangely: When you first time pop open the dropdown, it offers three choices. You choose one. But when you after that try to change your selection, the dropdown only offers one choic...

gwt ext combobox

hi, i am using gwt ext.i have a combo box.i want to set my own filter to display the value. Any idea please eg: combobox contain : jon , jockey jo, rock k, michle ken, jonty mark, if i enter k the combo box has to show rock...