Questions on UI for WinForms Forum

3 answers

89 views

Listcontrol not reflecting the new items in the data rebind

Hi,
I am trying to add new items to a Radlist control. I have updated the list which is the data source for the radlist control. When i do the rebind. the new items not showing in the list control.But I can see the datasource(list) has the new item(s) added.I have attached the sample code here. Add button should add the new items to list control. I also wants to achieve if any item(s) double clicked in the list control should be removed from it.Please provide me a sample for that as well.I also wants to keep the dropdownlist list by default as not selected any items(blank) .

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using Telerik.WinControls.UI;

using Common;

using System.Configuration;

namespace VisaManagementApp

{

public partial class Form_Main : Form

{

DBHelper dbhelper = new DBHelper();

Countries Nationalities = null;

Countries AllowedCountries = null;

PermittedCountries permittedCountries = null;

string conString;

public Form_Main()

{

InitializeComponent();

this.radDDL_SourceCountry.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDown;

this.radDDL_SourceCountry.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

this.radDDL_SourceCountry.DropDownListElement.AutoCompleteSuggest.SuggestMode = SuggestMode.Contains;

this.radDDL_AllowedCountry.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDown;

this.radDDL_AllowedCountry.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

this.radDDL_AllowedCountry.DropDownListElement.AutoCompleteSuggest.SuggestMode = SuggestMode.Contains;

conString = ConfigurationManager.AppSettings["footPrint"];

}

private void Form_Main_Load(object sender, EventArgs e)

{

LoadNationalities();

LoadAllowedCountries();

Panel_Main.Location = new Point(this.ClientSize.Width / 2 - Panel_Main.Size.Width / 2, this.ClientSize.Height / 2 - Panel_Main.Size.Height / 2);

Panel_Main.Anchor = AnchorStyles.None;

pb_product.Location = new Point(Panel_Header.Width / 2, Panel_Header.Height / 2 - pb_product.Height / 2);

}

private void LoadNationalities()

{

Nationalities = null;

string error = string.Empty;

try

{

dbhelper.GetAllCountryDetails(conString, out Nationalities, out error);

// Nationalities.Insert(0, new Country() { COUNTRY_NAME = "", COUNTRY_CODE = "" });

this.radDDL_SourceCountry.DataSource = Nationalities;

foreach (Country cnty in Nationalities)

{

this.radDDL_SourceCountry.ValueMember = "COUNTRY_CODE";

this.radDDL_SourceCountry.DataMember = "COUNTRY_CODE";

this.radDDL_SourceCountry.DisplayMember = "COUNTRY_NAME";

}

this.radDDL_SourceCountry.DropDownListElement.EditableElement.NullText = "Search here";

}

catch (Exception ex)

{

}

private void LoadAllowedCountries()

{

AllowedCountries = null;

string error = string.Empty;

try

{

dbhelper.GetAllCountryDetails(conString, out AllowedCountries, out error);

//AllowedCountries.Insert(0, new Country() { COUNTRY_NAME = "", COUNTRY_CODE = "" });

radDDL_AllowedCountry.DataSource = AllowedCountries;

foreach (Country country in AllowedCountries)

{

this.radList_AllowedCountries.DisplayMember = "COUNTRY_NAME";

this.radList_AllowedCountries.ValueMember = "COUNTRY_CODE";

this.radList_AllowedCountries.DataMember = "COUNTRY_NAME";

}

catch (Exception ex)

{

}

private void radDDL_SourceCountry_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)

{

if (radDDL_SourceCountry.SelectedIndex != 0)

{

permittedCountries = null;

Country country = null;

string err = string.Empty;

dbhelper.GetCountryCode(conString, radDDL_SourceCountry.SelectedItem.Text, out country, out err);

if (country != null)

{

if (radDDL_SourceCountry.SelectedIndex != 0)

{

dbhelper.GetPermittedCountries(conString, country.COUNTRY_CODE, out permittedCountries, out err);

if (permittedCountries != null)

{

this.radList_AllowedCountries.DataSource = permittedCountries;

foreach (PermittedCountry cnty in permittedCountries)

{

this.radList_AllowedCountries.ValueMember = "ALLOWED_COUNTRY_CODE";

this.radList_AllowedCountries.DataMember = "ALLOWED_COUNTRY_NAME";

this.radList_AllowedCountries.DisplayMember = "ALLOWED_COUNTRY_NAME";

}

private void radButton1_Click(object sender, EventArgs e)

{

try

{

if (radDDL_AllowedCountry.SelectedIndex != 0)

{

permittedCountries.Insert(0, new PermittedCountry()

{

ALLOWED_COUNTRY_CODE = radDDL_AllowedCountry.SelectedItem.Value.ToString(),

ALLOWED_COUNTRY_NAME = radDDL_AllowedCountry.SelectedItem.Text,

NATIONALITY_CODE = radDDL_SourceCountry.SelectedItem.Value.ToString(),

STATUS = true

});

radList_AllowedCountries.Rebind();

}

catch(Exception ex)

{

}

Thanks in advance

Sarin Soman

ListControl

answered on 15 May 2018

3 answers

91 views

Get GanttViewLinkDataItem

Hello~

I need your help~

Can I Get GanttViewLinkDataItem from GanttViewDataItem ?

//current way

var links = gantt.Links.Where(x => x.StartItem = item);

// but, I think a bad way

GanttView

answered on 15 May 2018

1 answer

124 views

CartesianMarkedZone annotation offset

Hi,

I'm trying to create a marked zone that goes between two points in a step line series, but instead the zone runs from the centre of one category to the next.

Is it at all possible to offset the zone or otherwise transform my data for the chart so that I can get the effect I'm going for? I've attached a quick screenshot showing the actual area in grey and where I would want it as a red outline.

Thanks

ChartView

answered on 15 May 2018

2 answers

214 views

String property with List of values

Hi,

I have bind an object to property grid. One of the objects properties is String but I want that property must fill with values of a list.

How can I make it?

Regards!

PropertyGrid

answered on 14 May 2018

3 answers

146 views

Radchartview selectionrange event?

Hello,

Im currently trying to rewrite an application that allows the user to select several data points by dragging the mouse over the chart area. Basically the user holds down the left mouse button, creates a rectangular area by dragging with the mouse, and anything inside that area will be selected. Does radviewchart support something like this? I'm looking for something analogous to Dundas chart's selectionrangechanging event. Sorry if there's an obvious answer here, I just started using telerik yesterday. Thanks.

ChartView

answered on 14 May 2018

2 answers

240 views

Disable automatic selection for AutoCompleteBox

Dear support,

I am using the control RadAutoCompleteBox with Suggest mode. Everytime I press enter, the first item of the list is choosen.

Let's imagine that in my list, i have the following items: ("Hello", "Hello2").

If I start to write "He" and I click enter, the item "Hello" will be automatically selected.

This is a behaviour that I would like to avoid as I should be able to enter manuel entry. So if I write "He" and if I press enter, I would like the item "He" to be choosen in the textbox as it is my manuel input.

Is it possible to avoid this behaviour and how?

Thanks a lot

AutoCompleteBox

answered on 12 May 2018

7 answers

348 views

How to RadListView Cells in the add control

Hi:
How to add control to RadListView?

ListView

answered on 11 May 2018

3 answers

123 views

Fix colum width in a Grid with autosizecolumn = Fill

Hello

I need to fix the width of a given column to a presribed value in a grid that is set to autosizecolumnmode= fill

I have tried many options unsuccessuflly.

Can some one tell me how to achieve this .

Thanks in advance

Pierre-Jean

GridView

answered on 11 May 2018

5 answers

193 views

Get Caret Coordinates

Hi,

I have a TextBox and I need to open a context menu (that I build dynamically based on the text present in the control) near at the current position of the caret.

How can I get the coordinates of the caret so I can pass them to the menu show method ?

I can change the control to a RadTextControl if needed.

TextBox

answered on 11 May 2018

1 answer

161 views

Customize a control in DataEntry

Hi,

I've implemented a DataEntry and everything works fine.

What I'm trying to do is to add a button near a TextBox which clicked should open up a new window with advanced search for selecting a new value to put in the TextBox.

Is this possible?

I'm trying to insert a custom control which contains a TextBox and a Button, but i don't know if it's the right way.

Thanks.

DataEntry

answered on 11 May 2018