showed checkbox box with checked values

Question

hi friends i have a problem in multicheckbox to showed checked items in the multichecklistbox. showed checkbox atleast 1 is cheked

Zakir Ahamed · Answer

hai sir checkedchanged is not in the property list and i am using vs2015

Manikandan Murugesan · Answer

You can use the event CheckedChanged. As you use many checkboxes you can write only one method and use it for all checkboxes. You can use the event CheckedChanged. As you use many checkboxes you can write only one method and use it for all checkboxes. I recommand you to use a list of values to stock what you want to show in the textbox then work on it ( in my example I sort the data and concatene them). public partial class Form1 : Form { private List listData; public Form1() { this .listData = new List (); InitializeComponent(); } private void checkBoxs_CheckedChanged( object sender EventArgs e) { CheckBox theCheckBoxChanged = sender as CheckBox; // verify the event is from a checkbox if (theCheckBoxChanged != null ) { if (theCheckBoxChanged.Checked) { // add data this .listData.Add(theCheckBoxChanged.Text); } else { // remove data this .listData.Remove(theCheckBoxChanged.Text); } this .UpdateTextBox(); } } private void UpdateTextBox() { // be carefull you can't concatenate if there is no data. if ( this .listData.Count > 0) { // sort and concatenate this .textBox1.Text = this .listData .OrderBy(s => s) .Aggregate((s1 s2) => s1 +  and  + s2); } else { this .textBox1.Text = String.Empty; } } } I recommand you to use a list of values to stock what you want to show in the textbox then work on it (in my example I sort the data and concatene them). Don't forget to assign the event CheckedChanged of all checkboxes to checkBoxs_CheckedChanged And also refer the following Link : https://msdn.microsoft.com/en-us/library/system.windows.forms.checkbox.checked(v=vs.110).aspx