In App maker for drop downs there is a option to set nullItemName, default one is No selection. In my scenario we are taking values from models which has empty values I want to show empty values as blanks but if we change the nullItemName property.
It is changing for the default app maker one and the empty values from the models. Image is attached for the reference.
Here you can see two same values one is app maker default No selection and the other in from the datasource empty item.
Dropdown widget has two properties: options and names. By specifying both of them you'll explicitly tell App Maker to display specific name for each option:
// options
[1, null, 3, 4]
// names
['One', 'Two', 'Three', 'Four']
Editor
Runtime
For sure you can use binding for these properties.
Related
In my main data input in my Google App Maker app, I have relation data that's displayed in a list. I want the entries in that list to be able to be null until the user takes a specific action by clicking on a particular button, but at that point, I want the existence of values to be validated.
For the life of me, I couldn't figure out how to access iterate through the rows in the list and check the value of a specific field. But after a TON of trial and error, I figured it out -- see below.
Starting with the list widget (MyList), get the rows contained in it:
var rows = MyList.children._values;
To access the widgets in an individual row, identify them as an array first:
var widgets = rows[0].children._values;
Then get the value of the widget you want by identifying by index:
var value = widgets[0].value;
We have tables in app maker that shows data in list view and it will add default features like sorting, paging. We want filters on top of each column in
that table, drop down control acts as filter that will list all the distinct values on its configured column. When I select a value in dropdown it should
filter the value from datasource and load in the list view.
If two filters or more filters is applied at the same time, the filters should act as AND condition that will bring values satisfied with all filters.
There is no such type of table in App Maker at this time (but you can always file feature request here)
Meanwhile you can put some effort and implement it on your own. You just need to add input widgets, layout them and bind to filters(_equals, _in, _notIt, _startsWith...):
#datasource.query.filters.FieldName._equals
There are some relevant apps with this functionality:
Project List
Project Tracker
#Html.CheckBox("WiFi", #Model.Amenities.Contains("WiFi"))
#Html.CheckBox("Dining", #Model.Amenities.Contains("Dining"))
Using this format I am able to get the values from sql server but not able to bind them with the property.
It seems weird but I entered the values of the attribute Amenities directly into the db. I want to use html helper only.
If you are wanting to bind a range of possible values to property Amenities, use radio buttons (checkboxes are for binding to boolean values)
#Html.RadioButtonFor(m => m.Amenities, "WiFi")<span>WiFi</span>
#Html.RadioButtonFor(m => m.Amenities, "Dining")<span>Dining</span>
// More radio buttons for other possible values that you want to set for Amenities
This will create a series of radio buttons allowing you to set the value of Amenities from one of the options ("WiFi", "Dining" etc) and if the initial value of Amenities is say "Dining", when the view is rendered, the 2nd radio button will be selected
PS. Always use the strongly typed version of html helpers - #Html.CheckBoxFor(), not #Html.CheckBox()
I have form with grid. I defined dataStore with 2 columns (text and checkBox). Grid.store = defined dataStore. Second column is editable (you can change selection on each checkBox). I have some button, and when I click it, I want to get info about each cell. Example if have gird:
Name1 true
Name2 false
I want get info col[0].row[0] is equal 'Name1', col[0].row[1] is equal 'Name2'.
I try iterate on dataStore but it has only value which I put them by hand. The value which was changed on grid by clicking on checkBox didn't save in dataStore.. My question is how to iterate on grid, how get info about each cell.
To iterate across a store in Ext3, you can use dataStore.each()
Supply it an anonymous function and the parameter it receives will be the current record in the store. The data in the current record can be read by using record_var.get(field_name).
So, for example:
var dataStore = myGrid.getStore();
dataStore.each(function(rec){
alert(rec.get(field1));
}
I am trying to build a 6x6 grid layout. In each cell, there will be an input check box. I want to bind the checkboxes to my backing bean in a "consecutive fashion"...meaning, I would like to be able to iterate over the checkboxes to see whether they are checked or not. Basically, there must be an underlying data model. For example, you can drag over and drop off as a table, any item in the data control palette. Then in my application module, I can modify the view object as I wish before I save to the database. Now if I have a table with 36 rows and two columns (one is Id, one is Numeric (1 or 0)). I would like to drag over that table and drop off as a Grid that will enable a user to update each of the rows by selecting or 'un-selecting' a checkbox.
Try to use for each or Iterator component. They iterate over some array/collection and repeat elements enclosed within those components. You can check how Oracle does Dynamic Table (when you drag view object instance from application module to a page, choose dynamic table option) to get and idea.
try :
http://jobinesh.blogspot.com/2010/06/model-driven-approach-for-building.html
http://blogs.oracle.com/shay/2010/10/adf_faces_dynamic_tags_-_for_a.html
also try google with "dynamic form adf"