I have a dropdown list as :
<s:DropDownList id="cad" width="100%" dataProvider="{model.referenceList.refPatientResponseLists}"
labelFunction="myFunction" selectedIndex="{model.cd.code}"/>
Now the refPatientResponseLists returns 3 rows of data & I need to display the 3 values in the Dropdownlist. So I have the label function as :
public function myFunction(item:Object):String {
return item['refPatientResponses'] [cad.dataProvider.getItemIndex(item)]['responseDesc']+'';
}
But this displays only 1 value in the Dropdownlist. So it returns something like:
return item['refPatientResponses'] [0] ['responseDesc']+''
How can I get all the 3 values in the dropdown. Hope my question is understandable and expecting a reply.
Thanks
Harish
Object structure from the logs:
(Typed Object #1 'datacollection.model.ReferenceList')
(Array #3)
refPatientResponseLists = (Externalizable Object #4 'flex.messaging.io.ArrayCollection')
(Array #5)
[0] = (Typed Object #6 'datacollection.model.RefPatientResponseList')
refPatientResponses = (Externalizable Object #7 'flex.messaging.io.ArrayCollection')
(Array #8)
[0] = (Typed Object #9 'datacollection.model.RefPatientResponse')
responseSequence = 1
responseDesc = "No"
responseCode = 28
responseTypeCode = 10
[1] = (Typed Object #10 'datacollection.model.RefPatientResponse')
responseSequence = 2
responseDesc = "Yes"
responseCode = 29
responseTypeCode = 10
[2] = (Typed Object #11 'datacollection.model.RefPatientResponse')
responseSequence = 3
responseDesc = "Claim Not Found"
responseCode = 30
responseTypeCode = 10
I'm unclear if your issue is that your drop down list only has a single item or that all items in the drop down list are displaying the same text; but I wrote this answer assuming the former.
Did you run in debug mode? How many times is the labelFunction being called? I think the labelFunction is a red herring in this case. If the list only shows a single item, it is most likely because it thinks the dataProvider only has a single item.
The labelFunction should be called 3 times if you have a dataProvider w/ three items. It is called once for each item.
Generally, my binding experience is most consistent if I do not bind into multiple objects. So, you this would be okay:
model.referenceList
or this
referenceList.refPatientResponseLists
But, I would not expect this to work:
model.referenceList.refPatientResponseLists
So, the question I have is are you sure that three items are being returned in the dataProvider? Are you sure that the component knows that three items are in your dataProvider (AKA Is Binding properly updating)?
Without knowing your object structure, it is hard to debug your labelFunction, but you shouldn't need to use the getItemIndex function.
Ok I was able to solve it using
Model.referenceList.refPatientResponseLists.getItemAt(0).refPatientResponses
Maybe helpful for others who have similar issues :)
Related
Given the following array as an example...
arr(0)(0) = 3
arr(0)(1) = name
arr(0)(2) = address
arr(1)(0) = 7
arr(1)(1) = name
arr(1)(2) = address
arr(2)(0) = 14
arr(2)(1) = name
arr(2)(2) = address
I need to delete the middle element (id=7) from the array. I understand that I need to loop through the array and move each record that isnt to be deleted into a new array. I tried like this...
Dim newArr,i
Redim newArr(Ubound(arr))
For i = 0 to Ubound(arr)
If (CStr(arr(i)(0)) <> 7 ) Then
newArr(i) = arr(i)
End if
Next
When debugging this I can see the if statement work so I know only 2 elements are copied but newArr is empty at the end of this. What am I missing. I am a PHP coder that is new to classic asp and Im used to having array functions that make this kind of thing unnecessary. Any help appreciated. Thank you.
You don't need new array, you can just reassign the items and "crop" the array:
Const removalIndex = 1
For x=removalIndex To UBound(arr)-1
arr(x) = arr(x + 1)
Next
ReDim Preserve arr(UBound(arr) - 1)
This code will remove the array item at index 1 from the main array. If you don't know in advance the index of the item to remove, you can easily find it with a simple loop over the array.
Instead of using array you can give Scripting.Dictionary a try.
It is much more flexible, and has, among others Remove method.
I suggest using Scripting.Dictionary and using it as a List/collection instead, as it allows for insertions and deletions. See here: Lists in VBScript
I don't know the definitive answer, but if I were to take a stab in the dark guess I'd suggest that since the array is two dimensional maybe you have to explicitly refer to it that way?
Dim newArr,i
Redim newArr(Ubound(arr),3)
For i = 0 to Ubound(arr)
If (CStr(arr(i)(0)) <> 7 ) Then
newArr(i)(0) = arr(i)(0)
newArr(i)(1) = arr(i)(1)
newArr(i)(2) = arr(i)(2)
End if
Next
I see some VBScript syntax issues. First:
arr(0)(0) = 3 'ERROR: Subscript out of range
arr(0, 0) = 3 'CORRECT
Next:
ReDim newArr(Ubound(arr)) 'this is 1 dimensional array
newArr(0) = arr(0) 'this will NOT work
newArr(0) = arr(0, 0) 'this will work
And finally: why you convert to String and then compare it to an Integer with:
(CStr(arr(i)(0)) <> 7)
LATEST UPDATE: Issue answered here. Some one else at stackoverflow had a similar issue and it was resolved. Solution provided for convenience. This is the line of code I was missing:
comboHeaderColumn.useLabelFunctionForFilterCompare = true;
that line is followed by these:
comboHeaderColumn.filterComboBoxBuildFromGrid = true;
comboHeaderColumn.labelFunction = formatState;
where formatState is a local method that formats the data for the combobox.
UPDATE: I've now got the combobox's loading with the correct data, but when I select a value nothing happens. The combo boxes load only data that is in the column, and when you select a value in the combobox, it's supposed to filter the rows on that value. It doesn't.
Thanks for looking. I'm having trouble getting multiple filters to work in Flex in Flash Builder 4 using the ExtendedDataGrid and ComboBox's. Here is an image of part of the grid:
The User Name and City filter properly if you type text into the box's above the column header and the Request Date lets you select date ranges if you click on the Custom bar, but the Request Reason and State ComboBoxes do not list anything. I've created them using comboHeaderColumn.filterComboBoxBuildFromGrid = true; but all it does is put "[object Object]" as the only other selection under All.
I've used this article but it will only allow you to use a single filter for the entire grid.
My finished grid will have about 20 columns and from 20,000 to 450,000 rows of data so the filters are really important and I'll need more than one.
The code is very straight forward and loops through all the returned data and if the column is identified as a filter column it does this:
comboHeaderColumn.filterComboBoxDataProvider = codeValuePairs;
comboHeaderColumn.filterComboBoxLabelField = "Value";
comboHeaderColumn.filterControl = "ComboBox";
comboHeaderColumn.filterOperation = FilterExpression.FILTER_OPERATION_TYPE_EQUALS;
comboHeaderColumn.headerText = ac.Header;
comboHeaderColumn.dataField = ac.Name;
if( ac.Header == "State" || ac.Header == "Request Reason" )
{
comboHeaderColumn.filterComboBoxBuildFromGrid = true;
}
ProfileDataColumns.push(comboHeaderColumn);
This creates 2 entries in the combo box: All and [object Object]
What am I missing??? Anyway, after half a day searching I decided to reach out.
Any suggestions or direction to an article would be very much appreciated.
Thanks.
I have a dropdownlist populating list of values in it in page_load .
I want to select a specific value
Me.DropDownList_LocalOfficeAssignment.SelectedValue = ct.LocalOfficeName
Me.DropDownList_LocalOfficeAssignment has list of values.
Problem is: It always pointing to first item.
i tried this
For Each item As ListItem In Me.DropDownList_LocalOfficeAssignment.Items
If item.Equals(ct.LocalOfficeName) Then
item.Selected = True
Exit For
End If
Next
DV.Dispose()
still pointing to the first item. i debugged, it should point to the last item.
ct.localoffice is containing the last item in the list. This is how i am populating the dropdown :
Dim DV As DataView = New DataView(CacheVariable.States.Tables(0))
Dim DRV As DataRowView
Me.DropDownList_LocalOfficeAssignment.Items.Clear()
DV = New DataView(CacheVariable.LocalOffice.Tables(0))
If DV.Count > 0 Then
For Each DRV In DV
Me.DropDownList_LocalOfficeAssignment.Items.Add(New ListItem(DRV("Name"), DRV("LocalOfficeID").ToString))
Next
End If
Based on lengthy comments on the question...
You're looking for the wrong value when you try to set the SelectedValue. Take a look at how you create your ListItems:
Me.DropDownList_LocalOfficeAssignment.Items.Add(New ListItem(DRV("Name"), DRV("LocalOfficeID").ToString))
When creating a ListItem, you pass it both its display text and its underlying value. In this case, you're setting them as:
Display Text = DRV("Name")
Underlying Value = DRV("LocalOfficeID")
According to your comments, the sample data looks something like this:
LocalOfficeID | Name
--------------------
1 | abc
2 | def
3 | xyz
Then, when you try to manually set the SelectedValue, you're passing it the wrong value. You're essentially trying to do this:
DropDownList_LocalOfficeAssignment.SelectedValue = "xyz"
None of the Value properties on the ListItems are "xyz". They're "1", "2", and "3". In order to set the SelectedValue, you need this:
DropDownList_LocalOfficeAssignment.SelectedValue = "3"
So this line needs to change:
Me.DropDownList_LocalOfficeAssignment.SelectedValue = ct.LocalOfficeName
On your ct object you need to get the identifier for the object, not its display name. Probably something like this (though without knowing what ct is I can't be certain):
DropDownList_LocalOfficeAssignment.SelectedValue = ct.ID
If you don't have the identifier, then you can find it on the DropDownList by searching for the display name. Something like this should work, though there may be a more elegant way to do it:
DropDownList_LocalOfficeAssignment.SelectedIndex = DropDownList_LocalOfficeAssignment.Items.IndexOf(DropDownList_LocalOfficeAssignment.Items.FindByText(ct.LocalOfficeName))
Using the identifier would be much cleaner, though.
This is usually because the DropDownList does DataBind() after you set the SelectedValue. Do you have the DropDownList.DataSourceID property set? Are you calling DataBind() later in the page lifecycle?
I have a question, why doesn't this work?
I have an ArrayCollection with data; a trace of random index of this using
ObjUtil.toString(arrc.getItemAt(index))
gives me
(Object)#0
label = "VALUE"
value = 20
I then create an object:
var newObj:Object = new Object()
newObj.label = "VALUE"
newObj.value = 20
A trace of this gives:
(Object)#0
label = "VALUE"
value = 20
Now I do:
arrc.getItemIndex(newObj)
and it always gives me -1.
Does anyone know where I'm going wrong?
Just a bit of clarification.. You're not actually adding that object to the collection? You're creating an object that is the same as an object in the collection and using it to get the index?
The newObj is not the same as the object in the arraycollection.. they just have the same values. The getItemIndex method will only 'find' an object if it's actually the same object (it's not going to drill down and compare member variables).
getItemIndex is searching for the same item (instance) and not for an equal item with equal property values.
I encounter this problem repeatedly, and haven't a clue what is causing it. I get an exception in the DataBind: SelectedValue which is invalid because it does not exist in the list of items.
Here are some important pieces of information:
I reload listOrgs periodically when the underlying data has changed.
The Organization.DTListAll call returns 2 Int, String pairs.
There are no duplicate or null values in the returned data
After the first two lines below, listOrgs.Items.Count is 0, and the Selected Value is 0
The selected value after the DataBind operation executes is the ID value from the first row in the data
This exception happens the very first time this code is executed after a fresh page load
listOrgs.Items.Clear();
listOrgs.SelectedValue = "0";
listOrgs.DataSource = new Organization().DTListAll(SiteID);
listOrgs.DataTextField = "OrganizationName";
listOrgs.DataValueField = "OrganizationID";
listOrgs.DataBind();
Apparently the solution I posted wasn't entirely effective... Eventually in my application I changed to this:
listOrgs.Items.Clear();
listOrgs.SelectedIndex = -1;
listOrgs.SelectedValue = null;
listOrgs.ClearSelection(); // Clears the selection to avoid the exception (only one of these should be enough but in my application I needed all..)
listOrgs.DataSource = new Organization().DTListAll(SiteID);
listOrgs.DataTextField = "OrganizationName";
listOrgs.DataValueField = "OrganizationID";
listOrgs.DataBind();
I kept getting this error.
Weird thing is that before I set the datasource and rebind after deleting an item the selected index = -1.
If I explicitly set the selectedIndex = -1; then it works and doesn't throw an error.
So even though it was already -1 setting it to -1 stops it from erroring.
Weird eh?
Try setting listOrgs.SelectedValue = "0" after you refresh the DataSource
At the moment you are trying to select the first item in an empty list.
Change the first two line with this :
listOrgs.SelectedItem.Selected = false;
listOrgs.Items.Clear();
In case you still have this problem this is how i resolved it:
listOrgs.SelectedIndex = -1; // Clears the SelectedIndex to avoid the exception
listOrgs.DataSource = new Organization().DTListAll(SiteID);
listOrgs.DataTextField = "OrganizationName";
listOrgs.DataValueField = "OrganizationID";
listOrgs.DataBind(); //Unless you have "listOrgs.AppendDataBoundItems = true" you don't need to clear the list
#PMarques answer helped me out and did solve my problem.
However whilst experimenting, it clicked in my head why I was gettign the error in the first place.
I was setting the "Text" attribute thinking that it might create an encompassing label or fieldset + legend, for me (which it doesn't).
The Text property for a list is infact the SelectedValue property for a ListControl.
So my mistake in misinterpreting what the text property did.
Not sure it is your case, but I had the same problem and apparently there was no explanation, then I realized doing a copy and paste on notepad of a field of database that at the beginning of the value there was a NULL.
Curious thing was that a select joining tables was working. I deleted the row and reinserted, after was working fine.
I was getting the same error repeatedly and try ending up by not setting the default selected value to Index -1.
I commented my code ddlDRIBidAmt.SelectedValue = -1
This value was set at the time where my Page Controls were reset to default values.
I know its too late to answer, but what I tried is an dirty solution but it worked.
After databinding, I am insert a item at index 0
ddl.Items.Insert(0, new ListItem("---Select---","-1"));
And on setting,
I am placing try catch, In catch i am setting Value to -1