This may be a basic question, but it's my first, so please be kind :-).
I have a sap.m.table with two models, one model with transaction data (trxModel) and another model that is used to display a sap.m.select list (reasonCodeModel). The table model is set to trxModel.
The selected value key from the dropdown needs to update a value (ReasonCodeID) in the trxModel when a value from the reason code list is selected.
I can retrieve the selected key in the change event as so
var selKey = evt.getParameter("selectedItem").getKey();
Is there a simple way to find the trxModel relevant model path from the table row Select list value I've just modified? Or is it possible to bind the ReasonCodeID from the trxModel to the ReasonCodeID field in the reasonCodeModel?
Just an extra piece of info, The current row is selected and is accessible
var selItem = dtlTable.getSelectedItem();
2nd question and I guess could be kind of related, is there a way of getting the table model path based on the selected item (highlighted row) of the table? And vice a versa?
More details on Select & Table binding.
var tabTemplate = new sap.m.ColumnListItem(
{
::
new sap.m.Select(
"idReasonCodeSelect",
{
enabled : false,
change : function(evt) {
oS4View.getController().changeReasonCodeSel(evt);
}
}
),
Bind the resource code Select to the Table
// bind the reason codes to the reason code model
sap.ui.getCore().byId("idReasonCodeSelect").setModel(
oReasonCodeModel);
sap.ui.getCore().byId("idReasonCodeSelect").bindAggregation("items", "/results",
new sap.ui.core.Item({
key : "{ReasCodeID}",
text : "{ReasCodeDesc}"
}));
Per Qualiture comment, how do I bind the Select key to the table model ReasonCodeID value?
I found an approach to tackle the first part of my question above
From the change function on the Select, I can find the path of the table model using the following.
var path = evt.getSource().getParent().getBindingContext().sPath;
2nd Update:
On the selectionChange event on the table, there's a couple of options to find the associated model path or model content.
// find the model path
oModelPath = selItem.getBindingContext().getPath();
// model values
oItem = oEvent.getParameter("listItem").getBindingContext().getObject();
So my only remaining issue, While I loop through the table model results (trxModel) and I want the Select List (using setSelectedKey) to reflect the ReasonCodeID value in the trxModel.
Related
I am working on implementing grouping w/ the Server Side Row Model. I need to generate an appropriate ID for the intermediate group rows. For example, if I group by Status then I would have intermediate rows representing each Status (NEW, IN PROGRESS, COMPLETE, etc). I need to come up with a unique ID for these rows (but preferable something deterministic if they need to be accessed/updated later).
The getRowId function is passed an object that contains things like the row's data, the previous parent group values, a reference to the api, etc.
What I would ideally like to know is the current list of group fields... I have all of the values readily accessible, but I don't know what field the current row is being grouped by - else I could just go grab that field from the row's data to use as part of the row id...
Is there any good way to acquire this information?
The columnApi exposes the 'getRowGroupColumns' function from which the field property can be deduced:
getRowId: ({ columnApi, data, level, parentKeys = [] }) => {
const groupColumns = columnApi.getRowGroupColumns();
if (groupColumns.length > level) {
const field = groupColumns[level].getColDef().field;
return [...parentKeys, data[field]].join('-');
}
return [...parentKeys, data.athlete, data.year];
},
I have a classic situation - a table with two comboboxes (or, to be exact, sap.m.Select controls) and after select in the first one, I would like to have the values in the second one updated. This is my model, basically, the first combobox should contain the list of available states and once some is selected, the second sap.m.Select control should be populated by relevant cities
{
countries: [
{ country: 'France', cities: ['Paris', 'Marseille', 'Lyon']},
{ country: 'Germany', cities: ['Berlin', 'Bonn']}
]
}
The problem is that I dont know how to do it. I am able to get the id of the updated row using something like this.
onCountryChange: function (oEvent) {
const selectedItem = oEvent.getParameter("selectedItem");
var path = selectedItem.getBindingContext().getPath();
bindComboBox(path); // this should rebind the data, but not written yet
}
I know now I should rebind the data in the correct combobox, however, I don't know how to affect only that single combobox on the correct row and how to update it. Could someone advise me how to do it? The whole table is defined in the .xml view, can I do it also with a formatter or inline expression or is this scenario too difficult for that?
Thank you
You can use the bindAggregation method (from the ManagedObject) class to rebind the combo boxes' items.
onCountryChange: function (oEvent) {
const selectedItem = oEvent.getParameter("selectedItem");
var path = selectedItem.getBindingContext().getPath();
this.byId("combo2").bindAggregation("items", {
path: path + "/cities",
template: new sap.ui.core.Item({
key: "{}",
text: "{}"
})
});
}
Note: Replacing "combo2" with the id of your 2nd combo box/select control.
Edit: To get the correct combo box (assuming you have multiple created on a table, use the ID of the first combo box (oEvent.getSource().getId()) to generate the ID of the 2nd combo box. Without knowing more of the structure of the table (and how it's created) I can't offer more.
i want to create Customer diary on the base of customerID that present in customer table.
In customerID field i want dropdown list having list of CustomerId's that are present in database
How can i do that ? can someone help me please
var _objAllCustomerIds = null;
using (AdventureWorksEntities context = new AdventureWorksEntities())
{
_objAllCustomerIds = context.MyCustomers.Select(customer => customer.Id).ToList();
}
//where AdventureWorksEntities is your DBcontent containing all your entities
//MyCustomers is the entities representation of your customer table
if this is in your .aspx file
then in your .aspx.cs file (assuming you're using code behind) you'd get the list of customer IDs and then bind that list to this dropdown.
Does this answer from another question help?
How to bind the selected value of a DropDownList
I have json model called contact this is how it looks:
{firstName:"",lastName:"",country:""}
I have an another model called country which contains the list of countries. I want this list of countries in a dropdown. While selecting a country from the dropdown, country field in contact model should get updated. How can i achieve that?
The simple steps to get this done are:
1. Set the Contact Model where ever you want such as View or Core.
2. Set the Country Model to DropDown list.
3. On selection of the DropDown list, on Change function you set Country field by the value you select in Dropdown list.
4. This will update the country value in the Contact Model.
you can use named data model and multimodel support
In your controller js,
this.getView().setModel(oCountryModel,"Country");
this.getView().setModel(ocontactModel ,"Contact");
If you want set Contact model with your default value, add logic in your init function:
init:function() {
//initialize contact model with default country
var oFilter = new sap.ui.model.Filter("country",
sap.ui.model.FilterOperator.EQ ,"America");
//suppose you have a Contact table called ContactList
var oTable =this.getView().byId("ContactList");
oTable.getBinding("items").filter([oFilter]);
}
In your view xml, use named model data binding, for example:
<Text text="{Contact>/firstName}"/>
Then you are using two models in your controller and view xml. Regarding dropdown selection change triggers an update for your contact, you need to attach event listener to the dropdown, and update the Contact data model based on the selected country. See the following code:
handleSelectionChange:function(oEvent) {
//get the new selected country
var country = oEvent.getParameters().newValue;
var oFilter = new sap.ui.model.Filter("country",
sap.ui.model.FilterOperator.EQ ,country);
//suppose you have a Contact table called ContactList
var oTable =this.getView().byId("ContactList");
oTable.getBinding("items").filter([oFilter]);
}
First I'd like to show the corresponding code snippet. When it comes to objCtx.AttachTo() it throws me an error:
Error: "The object cannot be attached because the value of a property that is a part of the EntityKey does not match the corresponding value in the EntityKey."
// convert string fragIds to Guid fragIds
var fragIdsGuids = docGenResult.FragIds.Select(c => new Guid(c)).ToList();
//add each fragment to document))))
foreach (Guid fragIdsGuid in fragIdsGuids)
{
var fragment = new Fragment() { EntityKey = new EntityKey("DocTestObjectContext.Fragments", "ID", fragIdsGuid) };
objCtx.AttachTo("Fragments", fragment);
}
objCtx.SaveChanges();
I've checked everything and I'm not missing any primary key.
However I need some words to explain why I think I have to do it this way.
I'm using EF4 in a C# Environment.
I have a many to many relationship between two tables, Document and Fragments(Primary key "ID") (Documents can have many fragments and a fragment can be a part of many documents)
The Entity Model works fine for me.
However when I try to add a new document to the DB I already have the IDs of the related Fragments in my hand. For adding a new document to the DB I have to call each Fragmentobject and add it to the mapped reference in my document-object. This is a bottleneck because a document can have more than 1000 fragments. The Consequence is that I need 1sec per document. Not much, but I have to create more than 3000 documents and saving this second would result in more speed.
Hopefully you know what's wrong in here.
Thanks.
Thomas
1st edit:
here is the solution wich actually works. I would like to avoid to load all the fragments and instead just save the fragment GUID I already have in the mapping table.
// convert string fragIds to Guid fragIds
var fragIdsGuids = docGenResult.FragIds.Select(c => new Guid(c)).ToList();
// get responding entities from Fragment table
var fragmentList = objCtx.Fragments.Where(c => fragIdsGuids.Contains(c.ID)).ToList();
foreach (var fragment in fragmentList)
{
doc.Fragment.Add(fragment);
}
objCtx.SaveChanges();
2nd edit:
I have the feeling that it is not really clear what I try to do.
However I would like to link/reference existing fragments in a Fragment-table to a coressponding Document in a Document table. The Document I'd like to reference is a new one. The document to Fragment table has an many to many relationship. This relationship has a linking table on the database. In the model it is correctly modeled as a many to many relationship. That's fine.
So far so good. What works is what you can see under my first edit. I have to load all the necessary fragments for a document by their id
// get responding entities from Fragment table
var fragmentList = objCtx.Fragments.Where(c => fragIdsGuids.Contains(c.ID)).ToList();
After that I'm able to add them to my document entity:
foreach (var fragment in fragmentList)
{
doc.Fragment.Add(fragment);
}
But why the hell do I have to load the whole entity (fragments) only to link it to a new document. Why do not tell the EntityStateManager "Dude, here you have some Fragment IDs, link them!"?
Further I tried to follow the MSDN article mentioned by Adrian in the comments. This doesn't worked out for me.
I'll try this:
var fragment = new Fragment {ID = fragIdsGuid};
//fragment.EntityKey.Dump(); // -- this should be null
objCtx.AttachTo("Fragments", fragment);
//fragment.EntityKey.Dump(); // -- shows the EntityKey object, created after the object is attached
The Dump function is from LinqPad