Questions on UI for WPF Forum

3 answers

126 views

Hi,

When I insert or edit a row and tab to the end of the row, the row gets validated and e.olddata holds correctly the old data. But when I change the content of a cell and after that I click on another row, e.oldata holds the actual rowdata. This is not the behavior you would expect.

Thomas

GridView

answered on 11 Sep 2009

1 answer

94 views

DataRow Visibility

I am looking for a way to hide certain rows based on properties of the row's datacontext. I've tried setting the MinHeight property of the row (as suggested in another thread). The problem is the row has text and shrinks to the text height. Is there some other way to control the visibility of individual rows in the grid?

GridView

answered on 11 Sep 2009

2 answers

97 views

About GridLines

Hello.
I have a question.
How to set GridLines visible if no data is presented?
thanks a lot!

GridView

answered on 11 Sep 2009

7 answers

204 views

Value converters

I have a chart bound to an observable collection which holds things like temperatures. The user can set the temperature units used by the program, and I need to change the chart to correspond. I'm thinking there must be a better way than iterating over all the items in the collection and converting them. Can I use a value converter (Ivalueconverter)? I can't work out how I do this so that the value converter is called for each point on the chart. Can I do this, or do you have any better suggestions, please?

Steve

Chart

answered on 10 Sep 2009

10 answers

253 views

Hide expand button on childGrid

Hello
I have hierarchy with 3 levels
father-child-subChild.
according to my data-
the father rows will always have children
but not all the child rows will have subChildRows
so I need to be able to hide the expand button in the childGrid
I saw your example of:

this

.MasterTableDefinition_PreviewDataRowCreate
but how or where can I add this method to my childGrid
Thanks!
Orit

GridView

answered on 10 Sep 2009

10 answers

61 views

Where did "ChildRecordManagers" go to ?

Hey,

using Q2 2009

I have a grid with relation based on a dataset.

I am trying to iterate over the child rows in the grid.

It seems that the "ExpandableDataRecord" does not have the
"ChildRecordManagers" property.

How I can I find the child rows ?

Thanks.

GridView

answered on 10 Sep 2009

2 answers

109 views

XAxis with fix label distance

Hi,

I have a simple (I guessed) problem.
I use a linechart which displays datapoints with a DateTime for the XAxis.
It has between 20 and 100 datapoints. (the point distance is between 0.1 and 0.8 seconds).

All I want are labels on the XAxis which show every second a tick and an alternate view which shows all 2 seconds a tick.

I guess I do something completely wrong :)
To find the value I display the label in the format "ss.f"
I messed around with the two seconds an reached now at this point:
rcData.DefaultView.ChartArea.AxisX.Step = 0.000022890946517388024;
But still I have some "drift" - this means I get:
17.3, 19.4, 21.5...and it ends in 37.9, 40.0 instead of 39...

Since I can't imagine that it is that difficult to have a XAxis with labels for one second or 2 seconds it stop playing around and ask for a solution here; because I think what I try it totally wrong.

So the simple question:
a.) how to have a XAxis with labels every second
b.) how to have a XAxis with labels every 2 seconds

Regards

Manfred

Chart

answered on 09 Sep 2009

1 answer

150 views

How to set GridView.SelectedItem?

How to set GridView.SelectedItem in Example below?

Gridview.ItemSource is setted datatable that includes Vendors(Vendor class)

public void setSelectedItem(Vendor handledVendor)
{
GridView.SelectedItem = (object)handledVendor; //What must code be?
}

GridView

answered on 09 Sep 2009

3 answers

267 views

DateTimePicker time format

If there is not a way to do this already, I would like to request that you make the DateTimePicker control have a property where you can specify 12-hour or 24-hour based times. Thanks...

DatePicker