I got a ComboBox in Vaadin and want to reload (from db) the set of entries in the dropdown list while typing in the text field of the ComboBox. I always got the exception:
java.lang.IllegalStateException: A connector should not be marked as dirty while a response is being written.
I tried to lock the session (getUI().getSession().getLockInstance().lock();), but it didn't help.
Is it possible to dynamically set/load the selection list of a ComboBox?
Cheers
Stefan
why do you want to change the content from DB as the user type? you'll get a postback and a query every key the user presses... isn't better to use the standard combo feature (which tries to autocomplete the value given what the user is typing)?
Anyway, if you really need this feature, you may extend the standard behaviour of combo extending the container behind the combo, as the data shown is taken from a container.
Related
Objective:
This is data driven approach. I am trying to get data from sheet to be entered in table in a web application. Now in the table there are fields as below:
Textfield (To enter name), Datatype drop-down (To select data type), Length field(to enter the length), Status field (Isactive or not)
Now here there is a dynamic logic as for only “String” datatype the “Length” field would appear else in default table “Length” field/column is not shown because for other data types there is static length value provided.
Now when automating I am getting data in sequence from sheet and setting that in table. Switching over the fields is done by using “Tab” mechanism.
Issue:
The only issue in this whole process is that while selecting “String” data-type from drop-down and after that tab is applied. At this point the “Length” field is supposed to appear for which data can be entered from the sheet but here at only tabbing/loosing focus from one field to another is not revealing the hidden “Length” field.
And at this point automation gets stuck up. Manually selecting the drop-down shows the “Length” field but when same is done manually using tab, the “Length” field does not show up.
It would be of really great help if anyone can please suggest on above issue.
Hoping to hear soon from someone. Thanks for your efforts in advance.
Manually selecting the drop-down shows the “Length” field but when
same is done manually using tab, the “Length” field does not show up.
Seems selenium isn't setting focus to the same object/element that you are. How are you using selenium to tab between fields? Do you have to tab to this element, or can you have selenium select it directly? Also, it would help us if you shared the selenium code and html.
I currently have a MS Access database of members.
I have a form that has a combo box which is populated with just the first and last names of members. (using a test database for now)
What im struggling with is how do i create a button that opens another form i have created but using the selection in the dropdown box to populate the fields in the newly opened form.
When a user from the dropdown box is selected an open is clicked i want it to open the profile form populated with their details.
pictures and access files can be found on my ftp server:
ftp://ftp.legends-gym.co.uk
User: ftpuser#legends-gym.co.uk
Pass: ftpuser
Regards
I can't access ftp site from work so can't see what you've got thus far however, the key bits you want to look at here are:
Add a button to the form and the On Click Event to open your profile form. Something along the lines of docmd.openform "frmProfile", acNormal
You need something to pass the member you've selected in the combo box to the profile form. One way might be to use OpenArgs so have a look at that
You then could use the passed variable in OpenArgs to select the data you want to fill out your profile form.
EDIT...
OK, I've had a look at the file now. Here is what you need to do to fix your problems (and a couple of extra bits which aren't causing an issue but will improve the look and feel).
On the Format of the Home form and the Member Search form, set Navigation Buttons and Record Selector to false. - This removes the unnecessary elements for a "single" form, you're not looking at records.
On the member search form, remove the binding to the members table. - You don't need to bind this form, as the recordsource of the combo is pulling the data required separately. if you look at your form before you change it, you'll notice you've got 1 of 10 records...
Also, remove the filter criteria and set filter on load to No - You were filtering the wrong form.
On the combo box, remove the after update event. - I'm not sure what that was trying to do but its completely unnecessary.
On the command button, add an onclick event which has the following code DoCmd.OpenForm "Profile", acNormal, , "ID = " & Me.Combo361 & ""
Save everything and enjoy. :)
You weren't far wrong with the filter, but it's actually a WHERE clause when opening another form - sorry, my bad misdirection. What you were doing was filtering the original form - ie the member search form. Also, you don't need to put ' quotes around the ID, it's a number not a string.
If you have problems I can probably host this fixed version somewhere for you to download.
I am building an ExtJS4 Web Application and there's a part where the user is shown a "Search Panel". It's basically a floating panel with textfields and a gridView. The textfields allow the user to put his or her input for first name and last name filters. There's also a combo box that the user can use to filter the search. The results are shown in the gridView. The search functionality works well.
However, when the floating panel is hidden and then shown, the fields are reset and the user would have to enter the input once more.
What I want to happen is for the textfield and combobox values to persist even though the panel is hidden then shown again. I have tried using setVisibility(false) then using setVisibility(true) but that did not work for me.
How can I persist values of fields when their parent view is hidden/shown?
The fields should have retained the value as you are just hiding and showing the search panel. It seems there is a bug in your program, but I cannot ascertain that without seeing some code. Assuming that your search panel includes a close button, I would suggest you to use closeAction: 'hide' on the panel instead of using setVisibility(). Also make sure that you are not creating multiple instances of search panel, use a single object of search panel.
Here is a quick fiddle http://jsfiddle.net/DirtyParadoxx/gL9aekzz/
If you want to use cookies, then as Nikolay Lopin suggested, stateful: true would be a nice way of doing it.
We have a rowediting plugin on grid where a button of one trigger field changes some other values of the record (we are loading some remote data which get applied to the record). The values that get changed in background are most commonly not editable, so they are just rendered. Basically the remote loading of the data works fine, meaning the record get changed and all data get save but we have the following problems:
1.The rowediting plugin does not show the changes that where applied to the record fields
2.Setting the changes via record.set() cause the store to sync immediately and not on clicking the "save" button of the editor.
So how can we make the editor to show the changes applied in the background and how can we apply these changes in a way so that they get saved along with the other edited fields.
Thanks in advance for any help!
This should not be that complicated, you just need a reference to your active editor instance. You can then either
reload the record into the form by calling loadRecord() again. But note that this may overwrite any changes that where made by now within the editor
or (for the second way I expecting the values to be exactly the same as in the record in manner of key:value definition - short: no special mapping is required)
apply the new data to the record by calling either set (note that this will trigger sync if you have autoSync turned on) or by using Ext.apply(recinstance.data,newvalues) and editorinstance.getForm().setValues(newValues)
This is a bit of a strange one, but I've been struggling for a few hours now and I can't understand what is happening.
I was wondering if anyone else has experienced this problem, and can perhaps explain it. I'm building a simple Winforms app and trying to use many of the built in controls.
Basically, I've got a form with a user control and some data capture fields. 3 of the fields are dropdown lists and on the user control I have a bindingSource control that binds directly to a Product class.
At run time I provide an instance of the Product class to the BindingSource and the class contains a property of ProductType. For simplicity I also added a List<ProductType> ProductTypes to the Product Class which loads itself when queried, which means I can just use the same bindingSource and choose the ProductTypes Data Member as the Datasource for the dropdownlist.
Upon running the form, the list binds perfectly and I can see all the product types listed, and I can select one and tab or click to the next field. But obviously the selected value won't bind because I've not chosen any bindings-SelectedValue for the dropdown, only a datasource. As soon as I make sure that the drop down modifies the instance of the Product by binding to the Bindings-SelectedValue, and then run the form, the list still gets populated perfectly and I can tab through the controls as long as I don't make a selection from the dropdown. If I make a selection from the dropdown then the dropdown holds focus. I cannot tab out for love or money and can't even click cancel button on the form, the close button top right is the only button I can click which works and I can't click any other field or dropdown. This affects all three dropdowns as soon as a selection is made.
Anyone have any ideas what I'm missing?
I have tried changing a few things and had some success by feeding the dropdown values a string[] instead of a member of an object. That seems to work, but defeats the object of using databinding doesn't it?
Any help appreciated!
Just guessing here, because I don't have time to set up a test and confirm right now, but are you doing any validating? I seem to remember that data-bound controls won't let you leave if the contents don't validate. Even if you aren't explicitly, try setting CausesValidation to False to see if there's any sort of validation going on behind the scenes, that might at least give you a hint.
Thanks for the input on this, helped me wrap my head around this.
In my case, it turns out that an exception was being thrown in one of the EventHadlers for my ComboBox.Validating event. It was hard to track down, because the IDE didn't show me that exception. I was able to modify the Exception behavior (in the debug menu) and have it show me any InvalidOperationException that was being thrown, and then I was able to track it down.
As Tom suggested, turning off CuasesValidation was the ticket to figuring it out.
For Infragisticst Dropdowns (may not be true for other winform dropdowns): If you have "LimitToList" set to true you can be stuck in a dropdown that you can't get out of without realizing it. Use the ItemNotInList even to trigger a warning message.