Hi.

In my grid I've got some columns with double values. Some of the values might be null values or Double.NaN resp.
However, in a summary row I need value counts, average and standard deviation of the values - excluding the null values!
How can I customize the grid aggregate functions to achieve this?
I experimented with GridViewSummaryItem.AggregateExpression a bit, but I don't know how to formulate an If-Condition to skip the null value row.
My code so far looks like this:

        Dim avg As New GridViewSummaryRowItem()
        Dim count As New GridViewSummaryRowItem()
        Dim stdev As New GridViewSummaryRowItem()
        For col As Integer = 2 To table.Columns.Count - 1
            Dim row_cnt As New GridViewSummaryItem()
            row_cnt.Name = table.Columns(col).ColumnName
            row_cnt.Aggregate = GridAggregateFunction.Count
            row_cnt.FormatString = "# {0}"
            count.Add(row_cnt)
            Dim row_avg As New GridViewSummaryItem()
            row_avg.Name = table.Columns(col).ColumnName
            row_avg.Aggregate = GridAggregateFunction.Avg
            row_avg.FormatString = "Ø {0:F4}"
            avg.Add(row_avg)
            Dim row_stdev As New GridViewSummaryItem()
            row_stdev.Name = table.Columns(col).ColumnName
            row_stdev.Aggregate = GridAggregateFunction.StDev
            row_stdev.FormatString = "σ {0:F4}"
            stdev.Add(row_stdev)
        Next
        grd_data_.SummaryRowsBottom.Add(count)
        grd_data_.SummaryRowsBottom.Add(avg)
        grd_data_.SummaryRowsBottom.Add(stdev)

Hello dear,

I can save layout for more than one grid view in the same file ??, for example:

i have gv1 and gv2, i want to save layout for all grids in one file so i can do this ?? if yes let me know, thanks.

In winforms Radgridview whenever I need to create a new row I have been generating a class with members for each column like:

Then I create and use it for adding rows like:

My question is two fold:

1. Can I somehow use newRow from above to directly create the row?

2. Instead of created my own class, since all this information is already in the datagrid can I access the field names though a class derived from the datagrid?

Hi,

I created a Usercontrol using telerik winform controls.

How to include the created Usercontrol into telerik grid view column as Column type

regards

Subramanya Udupa

hi,

i have some code like this

i can do this with microsoft checkedlistbox component

but i try do with radcheckedlistbox and get error

An unhandled exception of type 'System.InvalidCastException' occurred in asd.exe
Additional information: An object of type 'System.String' could not be thrown to 'Telerik.WinControls.UI.ListViewDataItem'.

how can i fix this

thank you

I am trying to validate a change to a property from within a propertygrid that requires a password.  I am trying to capture the ValueChanging event for the underlying editor.  If a form is launched from within the event handler and the change is not cancelled, an ArgumentOutOfRangeException ends up being thrown sometime after the event handler returns.  I have attached a simple example that throws the exception.  In it there is a simple Yes/No message box.  If Yes is answered -> Exception is thrown.  Any help is much appreciated.  Thank you

Enum type and simple class edited by the Property Grid.

Form Code