I have form 1 and form 2.
From form 1 I have a button that directs me to form 2.
On form 2 I have Combo Box and few text boxes.
The problem is that every time I enter form 2 then my combo box is selected and when user clicks on any letter it appears in combo box.
How can I deselect this field? So user isn't pointed to this combo box at start?
And second question, how can I disable editing text from combo box completely? that the only choice user have is to pick one of 3 selected items?
Regards.
1) Set the Tab Order on the form so that the correct control is selected when the form is activated
2) To disable text entry in the combo and thus restrict selection to the defined items only, set the combo's DropDownStyle to DropDownList
Related
I am working on a Nutrition Program that would allow a user to enter in the nutrition information for a item.
this is what my input form looks like every time a user clicks the plus button I need to create three new text boxes and a drop down box which would look like the above example.
This is what I am using right now but it only creates the textboxes for the first click. I need create the textboxes and combo boxes on every time the user clicks the add button.
Nvm,
I managed to do this myself using ViewStates it took alot of code but it works this is adding the controls on button click.
This is re-adding the controls on postback
And this is the results
I have a combo box that is bound to a list of strings. The combo box has a check box next to each value so the user can choose values.
I do not want the user to be able to "select" an item. when the combo box drop down is not open I always want a single image to show. So this would look a lot like a button but with a drop down list of check boxes.
I have already done the check boxes and text box so I dont need help with that, but I cant seem to find out how to achieve this.
C#
WPF
Visual Studio 2012
I have two buttons, a text box, and a combo box on a page:
The user inputs an integer to search for in the text box, and presses the Find button. A data grid is populated, the user selects a row, and clicks the Print button.
I want the Print button to validate that a selection has been made in the combo box (i.e. selectedindex is not -1). The combo box is an ASPxComboBox (DevExpress control). On the ComboBox, RequiredField.IsRequired is set to True. However, this causes the ComboBox to be validated on click of both Find AND on Print. Validation should not happen on click of the Find button.
How can I force a selection in my combobox on click of one button but not another?
On the Find button, which you don't want to trigger the validation, set the attribute
CausesValidation="false"
I have a program that has a main form that the user selects different options out of combobox's that progressively filter into more specific choices. an example would be
first combobox has groups, the user would select a group. This selection activates the event handler that then opens up the next selection which only lists choices from the selected group.
This goes on for about 10 comboboxes.
I then have form 2,3,4,5 which are loaded into form 1 visually by docking the forms. These forms have text boxes that can be filled by user or by taking the data selected in the combobox's run through an equation and then default information will fill the textboxes.
So the problem is I am unable to take the selected items from the users' selections in the cmbox's and move then to the other forms and then load the textboxes
I believe an issue i'm having is since both form 1 and 2 load at the same time and the information i'm sending is based off of selections that happen in events of form 1 that I need to create some form of update event in form 2 that refreshes the form when a selection is made on form 1, but I have no idea how to begin that.
so in form1, raise an event (http://msdn.microsoft.com/en-us/library/9aackb16(v=vs.110).aspx) and then in form2 populate whatever it is that's needed (safely http://msdn.microsoft.com/en-us/library/a1hetckb(v=vs.110).aspx) You can pass arguments on your raise events.
How can we add mnemonics for ComboBox?
For example, in a CheckBox, in the caption we can say 'Check&BoxCaption', notice the '&' before 'B'. In the form, this 'B' gets underlined and we can access it by pressing Alt+B (as a keyboard shortcut).
But how do we do this in case of ComboBox?
Check mnemonic implemented on Visual Studio Options page in a label against a ComboBox
I am guessing (checking the screenshot above), we create a mnemonic in the label against the ComboBox.
How do we link it to the ComboBox, in that case?
The control itself does not support a hotkey. This is handled through label controls. Since labels cannot have the focus, selecting a label will give the focus to the next control in the tab order.
So add a label control to your form and give it a hotkey by inserting the '&' character before the hotkey character. Make sure the label control has a tab index value that is one less than your combo box so that the combobox is the next control in the tab order after the label.
This is the same way it works for other controls as well, such as text boxes and other lists.