Questions on UI for WinForms Forum

1 answer

141 views

Is possible binding DataTable without rowdescription and column description ?

A regular grid like query data from DataTable and binding directly
Since the binding , at run-time
I want to specify the row and column possible?

I want like this.

DataTable                                       pivot grid
col1      col2    col3        =====>      col1     col2     col3
==============                         ================
a            c          d                              a           c          d
a            c          d                             a           c          d
a            c          d                              a           c          d

PivotGrid and PivotFieldList

answered on 12 Nov 2012

5 answers

425 views

Basic C/R/U/D example with Entity Framework?

I'm trying to implement a basic CRUD form using the GridView. I am using EF to populate the grid. I need to set some default values and found this link which shows using the DefaultValuesNeeded event. When I attempt to use this I get a NullReferenceException.

I'm obviously missing something here, but I'm not sure what.

Are there any examples that show:

Binding to records retrieved from EF
Setting default values when adding new records
Where to hook in saving changes when a record is added/updated/deleted
Displaying validation errors

Here's my currently working code for viewing the records:

var context = new

FlockWatchEntities();

var forecast = context.ForecastMSTs.Where(i => i.Type ==

"F"

).OrderBy(i => i.chrDesc);

grdForecast.DataSource = forecast;

And this is what the code in the DefaultValuesNeeded event looks like:

private void grdForecast_DefaultValuesNeeded(object

sender, Telerik.WinControls.UI.GridViewRowEventArgs e)

{

       e.Row.Cells[

"dtmEntered"

].Value = DateTime.Now;

       e.Row.Cells[

"chrEnteredBy"

].Value = System.Security.Principal.WindowsIdentity.GetCurrent().Name;

}

GridView

answered on 12 Nov 2012

10 answers

297 views

Layout Saving Issue

Hi,
We are saving RadGridView layout in XML files successfully but however we are not able to save "SummaryRowGroupHeader" data in xml file. Can anyone help us to solve this issue?
Thanks

GridView

answered on 12 Nov 2012

4 answers

152 views

Problem with RadScheduler1.DataBind()

Hello,

I have a problem with the RadScheduler.

i need to refresh the RadScheduler from the database and when trying to use the method DataBind gives the following error: Collection was modified; enumeration operation may not execute.

I appreciate any help.

thanks.

Scheduler and Reminder

answered on 12 Nov 2012

4 answers

172 views

[Solved] Richtextbox & Theme

Hello all,

I am trying to add a theme to a rich text box but only "reset" and "control default" are the presented options.
Actually what I'm trying to achieve is a border around the rich text box exactly the same as the text box,
which I thought the theme would allow in some cases.

I'm using Q3-2012 and have tried in both VS2010 and VS2012 - all with the same results.

Any solutions?

Thanks

Terry

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 12 Nov 2012

6 answers

244 views

Conditional Format Dialog

Hi all,

Is it possible to make a column invisible in the conditional formatting dialog. We have some primary key fields which are hidden (IsVisible = False + IsVisibleInColumnChooser = False), but still i see the columns in the conditional formatting dialog.

Any ideas?

Maarten

GridView

answered on 12 Nov 2012

1 answer

299 views

Control X Axis Position in Line Chart

Hello,

I am having difficulty figuring out how to set the x-position of line data points in a windows forms chart. I am trying to create a chart with multiple lines of data that do not all start from the beginning of the x-axis or have regularly spaced intervals between the data points. Pretty much I want to be able to set the x-y position of each data point like a scatter plot. I see a "scatter line chart" for asp.net which seems to do what I am looking for, but I can't seem to find anything similar for windows forms.

ChartView

answered on 12 Nov 2012

4 answers

370 views

How modify the width of the table column?

Hi,

How can I change the width of the current column in the table with using ChangeTableGridColumnWidth method?

How could I get the current table, current gridColumnIndex?

I use 2012.2.912.40 RadControls version.

Regards,
Igor

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 12 Nov 2012

2 answers

191 views

DateTime Column

Hi, I'm sorry for my english;

I use a string(AAAAMMDD :20121107) to save a Date (in my DataBase), So I do not know what type use to display my date.

I tried to use textColumn and in the RowFormatting event I transform (using my own object) my string like i want (DD/MM/AAAA :7/11/2012), but I need sort the column and I use the CustomSorting event:

private void radGridView1_CustomSorting(object sender, GridViewCustomSortingEventArgs e)

{

MyObjDate row1Freight = new MyObjDate(e.Row1.Cells["colDate"].Value.ToString());

MyObjDate row2Freight =newMyObjDate(e.Row2.Cells["colDate"].Value.ToString());

if (row1Freight > row2Freight)

{

e.SortResult = 1;

}

else if (row1Freight < row2Freight)

{

e.SortResult = -1;

}

else

{

e.SortResult = 0;

}

And It does not work, also no sort by other columns.

The other method of load is transform my string in a DateTime for use DateTime Column, but I don't know where i have to make the transform or if I can tell what will be the column data format to receive would be perfect.

I tried to convert the string to DateTime in RowFormatting event, but does not show well the data and does not order correctly.

What would be the correct way to load the date data type using me? thanks

GridView

answered on 12 Nov 2012

5 answers

391 views

Add/Edit/Delete in GridView

Hi im new to winform for my work is all web based. I wanted to create same features like in the web that has add on top of the header and edit and delete column for each row in my grid, this is for security and safety features. Grid will just be readonly during load and only row thats edited will be editable (save and cancel will show on top of the header). add new row will add blank row (save cancel will show as well on top of the header) . Delete will just prompt.. Is there any sample that I could check? So far I dont seem to like the inserting and editing of winform for it adds when you loose focus on the row, and for edit if you can edit any cell that you clicked.
Hope someone can give some info..

Thanks in advance,RJ

GridView

answered on 12 Nov 2012