Questions on UI for WinForms Forum

1 answer

183 views

Hi,

Could I please have an example of how to implement drag and drop functionality between two RadListBox controls. The examples in the older posts don't seem to work with the latest release.

Thanks,
Brad

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 29 Aug 2008

1 answer

193 views

Disable Popup Fast Navigation window

I would like to disable the fast navigation popup that appears when clicking on the calendar's "title" (Month-Year). When clicking there, a popup appears allowing the user to select a different Month-Year. I would like to handle this event with a different popup. I have been able to tie into the same mouse down event to create my own popup window, however the telerik fast navigation window still pops up. Is there a way to disable this so that I can handle the event myself and popup my own fast navigation type of window?

I would like to keep the fast nvaigation arrows and header in place, just replace the popup that gets displayed when clicking on the Month-Year text.

Thank you.

William

Calendar, DateTimePicker, TimePicker and Clock

answered on 29 Aug 2008

4 answers

261 views

Hierarchical GridView - winform bind in code

Okay, I know I'm missing something here. I'm using the latest version of Rad for WinForms (Q1 2008) and I'm trying to populate a RadGridView using code only (not the BindingSource control). Can you tell me why this code isn't working?

private void PopulateGrid()
{
DataSet ds = GetMasterDetail();
radGridView1.DataSource = ds;
}

private DataSet GetMasterDetail()
{
DataTable master = Clients.GetMasterList();
master.TableName = "Clients";
DataTable child = Orders.GetChildList();
child.TableName = "Orders";

DataSet ds = new DataSet();
ds.Tables.Add(master.Copy());
ds.Tables.Add(child.Copy());

DataRelation relationship = new DataRelation("MasterDetail", ds.Tables["Clients"].Columns["ClientID"], ds.Tables["Orders"].Columns["ClientID"]);
ds.Relations.Add(relationship);

return ds;
}

GridView

answered on 29 Aug 2008

1 answer

148 views

Setting image

I have added unbound GridViewImageColumn.

I want to set the image of this colum from bmp file added to project resources, depending on the value in a bound column. How do I do this?

Thanks ... DP

GridView

answered on 29 Aug 2008

1 answer

117 views

Documentation out of date

Hi Telerik support,
I'm using RadControls for Winforms and was trying to follow the RadTreeView instructions on how to add Context menus. For the past 10 minutes I'm trying to find RadDropDownMenu until I found in a web site that it was replaced by RadContextMenu.

Documentation

answered on 29 Aug 2008

1 answer

230 views

Iterating Rows in GridView Slow

Why does iterating through the rows in the grid take so long like in this example. It can take a few minutes to walk through every row in the grid if it contains 10000+ rows. Is there a more efficient way to walk the rows. I am trying to implement a find within a column functionality, but it is extremely slow for a large number of rows.

for (int i = 0; i < Global.MainUiForm.OutputGrid.RowCount; i++)

{

currentRow =

Global.MainUiForm.OutputGrid.MasterGridViewInfo.Rows[i];

radColumn = (

RadColumn)this.comboBoxLookIn.SelectedItem;

if (regex.IsMatch(currentRow.Cells[radColumn.FieldName].Value.ToString()))

{

currentRow.IsCurrent =

true;

currentRow.EnsureVisible();

currentRow.Cells[radColumn.FieldName].EnsureVisible();

found =

true;

break;

}

GridView

answered on 28 Aug 2008

2 answers

223 views

Drawing problem when Context menu gets opened

Hi,

I've got on last problem I need to solve before I'm happy to be finished with a long journey.

I had to integrade the Grid Control into a large C++ solution, therefore I had to create a MFC custom control with CLR activated and loaded the RadGridView in this custom control. Then, the custom control can be placed on the MFC dialogs.

Now to my problem: When I right click on such integrated RadGrid, the context meny opens but in the backgroud the grid vanishes. When I then move the mouse over the grid, it gets becomes visible again.

Everything is working fine with RadGrids that are called from within the C++ app but open in their own WinForm Dialog. One little thing which appers with every RadGrid is, when I open the context menu by accident or just want it to close again, I need to choose one option. When I right click again it just opens anoder context menu and I then have two of them.w

Can the problem be solvend from the .Net side? If yes how? If it is a problem with C++ and MFC does anyone have an Idea there?

GridView

answered on 28 Aug 2008

1 answer

198 views

Change cell BackColor but retain its hover color

Hi,

I changed the BackColor property of a CellElement using the CellFormatting event, but it seems very awkward compared to the other cells in the row when that row is hovered or selected:
the other cells in the row change their colors because of the hovering, whereas the cell whose BackColor I adjusted remains the same.

How can I help this poor cell to behave like its fellows?

Thanks,
Tamás

GridView

answered on 28 Aug 2008

7 answers

71 views

Bug With Long Format on Windows Vista

Today I ran an application I made last week on my laptop, which is running Windows Vista. The application has a dateTimePicker, with the format set to "long". In Vista, the default date shows as "June-07-08", while it shows as "June 7, 2008" on XP. Therefore, when I try to pick a date, it reset me to the minimum date, which is January 01, 1990 by default.

Thanks in advance.

Calendar, DateTimePicker, TimePicker and Clock

answered on 28 Aug 2008

8 answers

282 views

Multiple relations with same parent

Hello,

I am trying to create a RadGridView which have multiple GridViewTemplates as hierarchical data. It works for my first relation using ParentColumnNames and ChildColumnNames, however, when adding my second relation, it does not work.

A small attached code sample is here, thanks:

    
                public class Client 
        
                { 
        
                    public int ID { get; set; } 
        
                    public string Name { get; set; } 
        
                    public Client(int id, string name) 
        
                    { 
        
                        ID = id; 
        
                        Name = name; 
        
                    } 
        
                } 
        
                public class Order 
        
                { 
        
                    public int ID { get; set; } 
        
                    public int ClientID { get; set; } 
        
                    public int Quantity { get; set; } 
        
                    public Order(int id, int clientid, int quantity) 
        
                    { 
        
                        ID = id; 
        
                        ClientID = clientid; 
        
                        Quantity = quantity; 
        
                    } 
        
                } 
        
                public class OrderPrices 
        
                { 
        
                    public int ID { get; set; } 
        
                    public int ClientID { get; set; } 
        
                    public double Price { get; set; } 
        
                    public OrderPrices(int id, int clientid, double price) 
        
                    { 
        
                        ID = id; 
        
                        ClientID = clientid; 
        
                        Price = price; 
        
                    } 
        
                } 
        
                    private void Form1_Load(object sender, EventArgs e) 
        
                    { 
        
                        radGridView1.AutoGenerateHierarchyFromDataSet = false; 
        
                        ordersTemplate = new GridViewTemplate(this.radGridView1); 
        
                        radGridView1.MasterGridViewTemplate.ChildGridViewTemplates.Add(ordersTemplate); 
        
                        GridViewRelation relation1 = new GridViewRelation(this.radGridView1.MasterGridViewTemplate); 
        
                        relation1.RelationName = "Clients Orders1"; 
        
                        relation1.ParentColumnNames.Add("ID"); 
        
                        relation1.ChildColumnNames.Add("ClientID"); 
        
                        relation1.ChildTemplate = ordersTemplate; 
        
                        radGridView1.Relations.Add(relation1); 
        
                        orderPricesTemplate = new GridViewTemplate(radGridView1); 
        
                        radGridView1.MasterGridViewTemplate.ChildGridViewTemplates.Add(orderPricesTemplate); 
        
                        GridViewRelation relation2 = new GridViewRelation(radGridView1.MasterGridViewTemplate); 
        
                        relation2.RelationName = "Clients Order Prices"; 
        
                        relation2.ParentColumnNames.Add("ID"); 
        
                        relation2.ChildColumnNames.Add("ClientID"); 
        
                        relation2.ChildTemplate = orderPricesTemplate; 
        
                        radGridView1.Relations.Add(relation2); 
        
                        LoadData(); 
        
                    } 
        
                    private void LoadData() 
        
                    { 
        
                        BindingList<Client> clients = new BindingList<Client> 
        
                              { 
        
                                  new Client(1, "John Smith"), 
        
                                  new Client(2, "Peter Jackson"), 
        
                                  new Client(3, "Samuel Dell"), 
        
                                  new Client(4, "Test") 
        
                              }; 
        
                        BindingList<Order> orders = new BindingList<Order> 
        
                            { 
        
                                new Order(1, 1, 2), 
        
                                new Order(1, 1, 1), 
        
                                new Order(1, 2, 10), 
        
                                new Order(1, 3, 43) 
        
                            }; 
        
                        BindingList<OrderPrices> orderprices = new BindingList<OrderPrices> 
        
                           { 
        
                               new OrderPrices(1, 4, 1.50), 
        
                               new OrderPrices(1, 4, 9.99), 
        
                               new OrderPrices(1, 1, 10.11), 
        
                               new OrderPrices(1, 2, 43.42) 
        
                           }; 
        
                        orderPricesTemplate.DataSource = orderprices; 
        
                        ordersTemplate.DataSource = orders; 
        
                        radGridView1.DataSource = clients; 
        
                    }

GridView

answered on 28 Aug 2008