combobox

问题 I can write a code. In this I can take a Template Column & in this I build a RadCombobox. When it's Index changed I want to affect the below text box. Link the selected value of the Combo box is set as Text on Below TextBox. Combo Box & Text Box are different Controls of Different Template Column. I can Write Control of Combo box like this : <telerik:RadComboBox ID="cmbGID" runat="server" DataSourceID="SqlDataSource8" DataTextField="Name" DataValueField="ID" AutoPostBack="True"

问题 I have this ItemsControl defined in my xaml <ItemsControl Grid.ColumnSpan="3" Grid.Row="1" HorizontalAlignment="Center" ItemsSource="{Binding MyItems, Mode=TwoWay}"> <ItemsControl.ItemTemplate> <DataTemplate> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="200"/> <ColumnDefinition Width="200"/> <ColumnDefinition Width="200"/> </Grid.ColumnDefinitions> <Label HorizontalContentAlignment="Center" Grid.Column="0" Content="{Binding FirstProperty}"/> <Label HorizontalContentAlignment=

问题 Following code lets me to print out the selected value from the Combobox, but I need to print(get) the indexnumber of selected item in the list. Can you please let me know how to do that? import Tkinter import tkMessageBox from Tkinter import * import ttk from ttk import * app = Tk() def OptionCallBack(*args): print variable.get() variable = StringVar(app) variable.set("Select From List") variable.trace('w', OptionCallBack) so = ttk.Combobox(app, textvariable=variable) so.config(values =(

问题 My report has a parameter which uses a base enum. The enum has 4 different options to choose when running the report. How do I insert an option which uses all 4 at once? For example, I have an enum named Phone and it has 4 types: 1 = None, 2 = Home, 3 = Mobile, 4 = Work. In a drop down, how do I add option 5 = None+Home+Mobile+Work? Thank you! 回答1: Add anoher enum with value All (see NoYes and NoYesAll enums as example) 回答2: Some ways to solve your problem: You can alter your Enum and add a

问题 Here is my method: private void ConvertValues() { txtResult.Text = angles[cmbUnits1.SelectedIndex]; double value1 = Convert.ToDouble(txtValue1.Text); double value2 = Convert.ToDouble(txtValue2.Text); int unit1 = cmbUnits1.SelectedIndex; } What I want the method to do is to get the selected of the ComboBoxes and test the values. But I want to know if there is an alternative to this: if( angles[cmbUnits1.SelectedIndex].Equals("Degrees") && angles[cmbUnits2.SelectedIndex].Equals("Radians")) { ..

问题 This question already has answers here : How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException? [duplicate] (2 answers) Closed 3 years ago . I am running Java 8u102. I have a modal window that contains a Combobox whose items are a FilteredList created from a list of Strings. The ComboBox is editable so that the user can enter text (automatically converted to uppercase). The items in the ComboBox popup are then filtered such that only those items that start with the entered

问题 Tried to do some searching on this, but couldn't find exactly what I needed. I'd like to have a combobox with hardcoded items, but contain a default string. For example: --Select Item-- Item1 Item2 Item3 I do not want the --Select Item-- to appear within the list, only on the combobox itself. Also I do not want this value to be editable. Thanks. 回答1: You could override the default template and to include a TextBlock there which only is visible if the SelectedItem is null (use a style with

问题 I have a combobox with a given width. It may occur that one row of the data is partially hidden (the combobox might be too narrow). I'd like to show the whole line by using a tooltip or right-click context menu. Currently I can't find how to 'catch' the row that I'm currently holding on or passing over by mouse. Please tell me. Thanks in advance! 回答1: Have you tried to increase the DropDownWidth property so that everything is visible? Edit: To find the ideal width based on the items in the

问题 I am stuck at something which I can not find the correct syntac for. The code I am working on looks like this: Public Function Initializecolors() 'initialize the colors by setting them with the help of the webpage: 'http://dmcritchie.mvps.org/excel/colors.htm 'example. Black is the first color '0(since black is the first index selection) + 1 = 1 Color(0) = 1 'Black Color(1) = 3 'Red Color(2) = 4 'Green Color(3) = 5 'Blue Color(4) = 7 'Magenta Color(5) = 9 'Brown 'Study each combobox of colors

问题 I have a WPF Combobox that is bound to a list of viewModel objects. Initially the SelectedItem is null, and thus the Combobox display is blank. When the selected item is null, I would prefer the Combobox to display "Select an item" to guide the user to select something from the combobox. sort of like the way, some text boxes contain gray text such as "enter user name" Any ideas on how to do this? Edit: I ended up using the suggestion to overlay a textbox, and change its visibility based on