The following source code will provide the use of CheckedListBox Control In C#.
Source Code: using System;using System.Windows.Forms;using System.Drawing;using System.ComponentModel; class CheckedListBoxDemo:Form{CheckedListBox FavLangs;GroupBox grpControls;Button AddValue;Button EditValue;Button DeleteValue;Button ShowValues;TextBox OldValue;TextBox NewValue;Label OldCaption;Label NewCaption;CheckBox chkAll; public CheckedListBoxDemo(){grpControls=new GroupBox();grpControls.Text="CheckedListBox Demo";AddValue=new Button();AddValue.Text="&Add";AddValue.Click+=new EventHandler(Add_Click);EditValue=new Button();EditValue.Text="&Edit";EditValue.Click+=new EventHandler(Edit_Click);DeleteValue=new Button();DeleteValue.Text="&Delete";DeleteValue.Click+=new EventHandler(Delete_Click);ShowValues=new Button();ShowValues.Text="&Show";ShowValues.Click+=new EventHandler(ShowValues_Click);OldValue=new TextBox();OldValue.ReadOnly=true;NewValue=new TextBox();OldCaption=new Label();OldCaption.Text="Old Value:";NewCaption=new Label();NewCaption.Text="New Value:";chkAll=new CheckBox();chkAll.Text="Check/UnCheck All";chkAll.CheckedChanged+=new EventHandler(Checked_Changed);chkAll.Width=175;OldCaption.Location=new Point(15,15);PositionControl(OldCaption,OldValue,true);PositionControl(OldCaption,NewCaption,false);PositionControl(OldValue,NewValue,false);PositionControl(NewCaption,AddValue,false);PositionControl(AddValue,EditValue,true);PositionControl(EditValue,DeleteValue,true);PositionControl(DeleteValue,ShowValues,true);PositionControl(AddValue,chkAll,false);grpControls.Controls.AddRange(new Control[]{OldCaption,OldValue,NewCaption,NewValue,AddValue,EditValue,DeleteValue,ShowValues,chkAll});grpControls.Size=new Size(450,200);FavLangs=new CheckedListBox();FavLangs.Location=new Point(10,10);FavLangs.SelectedIndexChanged+=new EventHandler(SelectedIndex_Changed);grpControls.Location=new Point(FavLangs.Left+FavLangs.Width+20,FavLangs.Top);this.Controls.AddRange(new Control[]{FavLangs,grpControls});} private void PositionControl(Control source,Control destination,bool CanPlaceHorizontal){if(CanPlaceHorizontal){destination.Location=new Point(source.Left+source.Width+20,source.Top);}else{destination.Location=new Point(source.Left,source.Top+source.Height+20); }} private void Add_Click(object sender,EventArgs e){if(NewValue.Text.Trim()!=""){FavLangs.Items.Add(NewValue.Text);}else{MessageBox.Show("Enter a Value to Add");}} private void SelectedIndex_Changed(object sender,EventArgs e){OldValue.Text=FavLangs.Items[FavLangs.SelectedIndex].ToString();} private void Edit_Click(object sender,EventArgs e){if(FavLangs.SelectedIndex==-1){MessageBox.Show("Select a Item to Edit");}else{if(NewValue.Text.Trim()!=""){FavLangs.Items[FavLangs.SelectedIndex]=NewValue.Text;}else{MessageBox.Show("Enter a Value to Edit");} }} private void Delete_Click(object sender,EventArgs e){if(FavLangs.SelectedIndex!=-1){FavLangs.Items.RemoveAt(FavLangs.SelectedIndex);}else{MessageBox.Show("Select a Item to Delete");}} private void ShowValues_Click(object sender,EventArgs e){string SelectedValues="The following value(s) are Selected:\n" + new String('-',48) + "\n";for(int i=0;i<FavLangs.CheckedItems.Count;i++){SelectedValues+=FavLangs.CheckedItems[i].ToString() + "\n";}MessageBox.Show(SelectedValues);} private void Checked_Changed(object sender,EventArgs e){for(int i=0;i<FavLangs.Items.Count;i++){FavLangs.SetItemChecked(i,chkAll.Checked);} } public static void Main(){Application.Run(new CheckedListBoxDemo());}}
using
class
public CheckedListBoxDemo(){grpControls=new GroupBox();grpControls.Text="CheckedListBox Demo";AddValue=new Button();AddValue.Text="&Add";AddValue.Click+=new EventHandler(Add_Click);EditValue=new Button();EditValue.Text="&Edit";EditValue.Click+=new EventHandler(Edit_Click);DeleteValue=new Button();DeleteValue.Text="&Delete";DeleteValue.Click+=new EventHandler(Delete_Click);ShowValues=new Button();ShowValues.Text="&Show";ShowValues.Click+=new EventHandler(ShowValues_Click);OldValue=new TextBox();OldValue.ReadOnly=true;NewValue=new TextBox();OldCaption=new Label();OldCaption.Text="Old Value:";NewCaption=new Label();NewCaption.Text="New Value:";chkAll=new CheckBox();chkAll.Text="Check/UnCheck All";chkAll.CheckedChanged+=new EventHandler(Checked_Changed);chkAll.Width=175;OldCaption.Location=new Point(15,15);PositionControl(OldCaption,OldValue,true);PositionControl(OldCaption,NewCaption,false);PositionControl(OldValue,NewValue,false);PositionControl(NewCaption,AddValue,false);PositionControl(AddValue,EditValue,true);PositionControl(EditValue,DeleteValue,true);PositionControl(DeleteValue,ShowValues,true);PositionControl(AddValue,chkAll,false);grpControls.Controls.AddRange(new Control[]{OldCaption,OldValue,NewCaption,NewValue,AddValue,EditValue,DeleteValue,ShowValues,chkAll});grpControls.Size=new Size(450,200);FavLangs=new CheckedListBox();FavLangs.Location=new Point(10,10);FavLangs.SelectedIndexChanged+=new EventHandler(SelectedIndex_Changed);grpControls.Location=new Point(FavLangs.Left+FavLangs.Width+20,FavLangs.Top);this.Controls.AddRange(new Control[]{FavLangs,grpControls});} private void PositionControl(Control source,Control destination,bool CanPlaceHorizontal){if(CanPlaceHorizontal){destination.Location=new Point(source.Left+source.Width+20,source.Top);}else{destination.Location=new Point(source.Left,source.Top+source.Height+20); }} private void Add_Click(object sender,EventArgs e){if(NewValue.Text.Trim()!=""){FavLangs.Items.Add(NewValue.Text);}else{MessageBox.Show("Enter a Value to Add");}} private void SelectedIndex_Changed(object sender,EventArgs e){OldValue.Text=FavLangs.Items[FavLangs.SelectedIndex].ToString();} private void Edit_Click(object sender,EventArgs e){if(FavLangs.SelectedIndex==-1){MessageBox.Show("Select a Item to Edit");}else{if(NewValue.Text.Trim()!=""){FavLangs.Items[FavLangs.SelectedIndex]=NewValue.Text;}else{MessageBox.Show("Enter a Value to Edit");} }} private void Delete_Click(object sender,EventArgs e){if(FavLangs.SelectedIndex!=-1){FavLangs.Items.RemoveAt(FavLangs.SelectedIndex);}else{MessageBox.Show("Select a Item to Delete");}} private void ShowValues_Click(object sender,EventArgs e){string SelectedValues="The following value(s) are Selected:\n" + new String('-',48) + "\n";for(int i=0;i<FavLangs.CheckedItems.Count;i++){SelectedValues+=FavLangs.CheckedItems[i].ToString() + "\n";}MessageBox.Show(SelectedValues);} private void Checked_Changed(object sender,EventArgs e){for(int i=0;i<FavLangs.Items.Count;i++){FavLangs.SetItemChecked(i,chkAll.Checked);} } public static void Main(){Application.Run(new CheckedListBoxDemo());}}
Node Js and Angular CheatSheet