Questions on UI for WinForms Forum

2 answers

172 views

pageview layout

How i can create next view (see attachment)
I need place some panel or user control above selector buttons in pageview control. Content of this panel is static and doesnt change when select another page.

PageView

answered on 04 Oct 2012

1 answer

109 views

Hide column using databinding

Hi all,

I would like to hide a column in the radgridview after I set the datasource property to a DataTable. But the problem is, that the column count is always 0. I'm using the AutoGenerateColumns = true to create all my columns.

GridView

answered on 04 Oct 2012

2 answers

181 views

Cloning Document and Elements inside Container

Hello,

What is the best solution to creating a new tab at runtime which contains elements in VB.NET 2012.

For example, <from users view>

1. File > New
2. <sees new tab> <new tab contains another control for editing text>

This process can be repeated and tabs can be closed, however I still need to be notified if the text has changed inside selected tab X, and also to be able to make changes to it (aka, bold, load text from a file, etc).

Thanks in advance.

Dock

answered on 03 Oct 2012

1 answer

320 views

Summary Rows with Grouping - disable/hide last total

Hello all,

I've got summary rows on a grid with groups at more than one level. The grouping is working great, and I've got summary rows at the grouping level I want.

But, I've got a final summary row that sums up all the groups and I don't want that, I need the totals only at the group level. In the screenshot attached, the rows highlighted green are exactly what I want. The last row, in red, is what I want to hide or disable.

Any suggestions on how to do that?

Thanks....

GridView

answered on 03 Oct 2012

6 answers

327 views

Multiple Desktop Alert

Hi,
Can you please tell me how to handle multiple alerts? Currently when i tried to show same alert multiple time, it only shows one time. Also there is no property, where i can find if alert is visible.

Also can we drag desktop alert from Application's system tray icon, just like other application shows. Means desktop alert should be initiate from Application's system tray icon.

Please reply me as soon as possible.

Regards,
Huzaifa

DesktopAlert

answered on 03 Oct 2012

1 answer

165 views

GridView Drag and Drop functionality, in bounded mode, using BindingList<object> as data source

Hello

In my work, i need to implement cell drag and drop functionality between few RadGridView controls. I studied examples given on this forums and discovered that all examples use DataTable as data source object, but i use BindingList<object> data source and in this case same implementation does not work. My question, is it possible to implement drag and drop between gridView controls in bounded mode when i use BindingList<object> as data source ? If yes how can i do this.

In my sample code i use three gridView controls and one button. When button is pressed, rows are loaded to all gridViews, and when i want to drag and drop cells from one gridView to another. Bellow i copied sample code i was using, and attached screenshot of the UI.

Thanks in advance.

Iliya

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Telerik.WinControls;
using Telerik.WinControls.UI;
 
namespace GridViewDragDropTutorial
{
    public partial class RadForm2 : Telerik.WinControls.UI.RadForm
    {
        public RadForm2()
        {
 
            InitializeComponent();
 
            Type3ValuesDataSource = new BindingList<Value>();
            Type1ValuesDataSource = new BindingList<Value>();
            Type2ValuesDataSource = new BindingList<Value>();
 
 
            Type3ValuesGridView.AutoGenerateColumns = false;
            GridViewTextBoxColumn gridViewTextBoxColumn = new GridViewTextBoxColumn("Name", "Name");
            gridViewTextBoxColumn.Width = 100;
            Type3ValuesGridView.MasterTemplate.Columns.Add(gridViewTextBoxColumn);
 
            GridViewCheckBoxColumn gridViewCheckBoxColumn = new GridViewCheckBoxColumn("CheckBoxes");
            gridViewCheckBoxColumn.Width = 50;
            Type3ValuesGridView.MasterTemplate.Columns.Add(gridViewCheckBoxColumn);
            Type3ValuesGridView.ShowColumnHeaders = false;
 
            SubscribeForGridEvents(Type3ValuesGridView);
            Type3ValuesGridView.ReadOnly = true;
            Type3ValuesGridView.MultiSelect = true;
            Type3ValuesGridView.MasterTemplate.AllowRowReorder = true;
            Type3ValuesGridView.GridBehavior = new MyBaseGridBehavior();
            Type3ValuesGridView.CellFormatting += GridViewCellFormatting;
            Type3ValuesGridView.RowFormatting += GridViewRowFormatting;
 
            Type3ValuesGridView.DataSource = Type3ValuesDataSource;
 
            Type1ValuesGridView.AutoGenerateColumns = false;
            GridViewTextBoxColumn columnLabelsGridViewColumn = new GridViewTextBoxColumn("Name", "Name");
            columnLabelsGridViewColumn.Width = 210;
            Type1ValuesGridView.MasterTemplate.Columns.Add(columnLabelsGridViewColumn);
            Type1ValuesGridView.ShowColumnHeaders = false;
 
            SubscribeForGridEvents(Type1ValuesGridView);
            Type1ValuesGridView.ReadOnly = true;
            Type1ValuesGridView.MultiSelect = true;
            Type1ValuesGridView.MasterTemplate.AllowRowReorder = true;
            Type1ValuesGridView.GridBehavior = new MyBaseGridBehavior();
            Type1ValuesGridView.CellFormatting += GridViewCellFormatting;
            Type1ValuesGridView.RowFormatting += GridViewRowFormatting;
 
            Type1ValuesGridView.DataSource = Type1ValuesDataSource;
 
            Type2ValuesGridView.AutoGenerateColumns = false;
            GridViewTextBoxColumn rowLabelsGridViewColumn = new GridViewTextBoxColumn("Name", "Name");
            rowLabelsGridViewColumn.Width = 210;
            Type2ValuesGridView.MasterTemplate.Columns.Add(rowLabelsGridViewColumn);
            Type2ValuesGridView.ShowColumnHeaders = false;
 
            SubscribeForGridEvents(Type2ValuesGridView);
            Type2ValuesGridView.ReadOnly = true;
            Type2ValuesGridView.MultiSelect = true;
            Type2ValuesGridView.MasterTemplate.AllowRowReorder = true;
            Type2ValuesGridView.GridBehavior = new MyBaseGridBehavior();
            Type2ValuesGridView.CellFormatting += GridViewCellFormatting;
            Type2ValuesGridView.RowFormatting += GridViewRowFormatting;
 
            Type2ValuesGridView.DataSource = Type2ValuesDataSource;
        }
 
        public BindingList<Value> Type3ValuesDataSource { get; set; }
 
        public BindingList<Value> Type1ValuesDataSource { get; set; }
 
        public BindingList<Value> Type2ValuesDataSource { get; set; }
 
 
        private void OnStartButtonClick(object sender, EventArgs eventArgs)
        {
            InitializeDataSource(Type3ValuesDataSource);
            InitializeDataSource(Type1ValuesDataSource);
            InitializeDataSource(Type2ValuesDataSource);
        }
 
        private void InitializeDataSource(BindingList<Value> dataSource)
        {
            for (int i = 0; i < 10; i++)
            {
                Value value = new Value();
                value.Name = string.Format("Value{0}", Value.ValueIndexCounter);
                dataSource.Add(value);
 
                Value.ValueIndexCounter++;
            }
 
        }
 
 
        private void SubscribeForGridEvents(RadGridView gridView)
        {
            RadDragDropService dragDropService = gridView.GridViewElement.GetService<RadDragDropService>();
            dragDropService.PreviewDragStart += DragDropServicePreviewDragStart;
            dragDropService.PreviewDragOver += DragDropPreviewOver;
            dragDropService.PreviewDragDrop += DragDropServicePreviewDragDrop;
            //dragDropService.PreviewDragHint += new EventHandler<PreviewDragHintEventArgs>(dragDropService_PreviewDragHint);
        }
 
        private void DragDropServicePreviewDragDrop(object sender, Telerik.WinControls.RadDropEventArgs e)
        {
            // you should mark the event as handled
            // this will prevent executing of default drag-n-drop logic for unbound mode
            // which is not working in bound mode
            e.Handled = true;
            // YOUR LOGIC HERE
        }
 
        private void DragDropServicePreviewDragStart(object sender, Telerik.WinControls.PreviewDragStartEventArgs e)
        {
            e.CanStart = true;
 
        }
 
        private void GridViewCellFormatting(object sender, CellFormattingEventArgs e)
        {
            e.CellElement.AllowDrag = true;
            e.CellElement.AllowDrop = true;
        }
 
        private void GridViewRowFormatting(object sender, RowFormattingEventArgs e)
        {
            // This enables row elements to be dragged and dropped
            e.RowElement.AllowDrag = true;
            e.RowElement.AllowDrop = true;
        }
 
        private void DragDropPreviewOver(object sender, RadDragOverEventArgs e)
        {
         
        }
 
 
 
        public class MyBaseGridBehavior : BaseGridBehavior
        {
            protected override bool OnMouseDownLeft(MouseEventArgs e)
            {
                bool result = base.OnMouseDownLeft(e);
 
                if (!this.GridViewElement.IsInEditMode && this.GridViewElement.CurrentCell == this.CellAtPoint &&
                    this.CellAtPoint != null)
                {
                    RadGridViewDragDropService service = this.GridViewElement.GetService<RadGridViewDragDropService>();
                    service.Start(this.CellAtPoint);
                }
 
                return result;
            }
        }
    }
 
    public class Value
    {
        public static int ValueIndexCounter;
 
        public string Name { get; set; }
    }
}

GridView

answered on 03 Oct 2012

1 answer

99 views

error when use radgridview

I have a form with radgridview bind to bindingsource and 1 button a 2 textbox also bind to one field from the same bindingSource.

The button when click will add a new row.

When a click the the values from the 2 textbox, keep the values from the last select record from the radgridview.

if i replace the radgridview for the datagridview, the value are cleared, which is the correct behavior, because is a new row with no values assign.

Can any one help me

GridView

answered on 03 Oct 2012

7 answers

143 views

Hierachical grid move expanded row to top

Hi,

Our BU would like that if a row is expaned in a hierchical grid, that grid scroll vertically so that the expanded row becomes the first visible row of the grid. Is this possible?

Many thx!

Maarten

GridView

answered on 03 Oct 2012

2 answers

215 views

get listview items

I've got 4 columns in my radListView1. I've added there 4 lines(4 items for each column).
But I can't get data from it. When I want to iterate through listview the property [text] is always the empty string.

List<string> list = new List<string>();

foreach (var item in radListView1.Items)

{

string line = item.Text;

list.Add(line);

}

return list;

Is there other way to retrieve values from ListView?

ListView