Styjun

I have an objectlistview with 4 columns and a dynamic number of rows, I'm struggling with programmable editing a cell text value, and optionally change the forecolor

I've read everything and anything that I could put my hands on, but couldn't find any valid and right to the point example on how to do it.

the ObjectListView is created this why

List<VideoItem> list = new List<VideoItem>();
foreach (dynamic item in VideoItems)

 list.Add(new VideoItem Index = (int)item.index, OldName = (string)item.oldname, NewName = (string)item.newname );



olv1.AddObjects(list);

VideoItem class look like this

private class VideoItem

 public int Index;
 public string OldName;
 public string NewName;

but i need to programmably edit a cell text on event. I'm doing some logical operations on other cell at the end im storing the result to to cell next to it.

You should be storing the result (making the change) to the underlying model object and then call RefreshObject(myModelObject);

About the forcolor, i need to change only the cell I've changed

"To change the formatting of an individual cell, you need to set UseCellFormatEvents to true and then listen for FormatCell events."

Take a look at this.

Just to add to Rev1.0 Answer, i needed to update the object that contains the items (in my case a List) then, use olv1.RefreshObject(list); flow by olv1.BuildList(true);
the olv1.BuildList(true); refresh the GUI immediately.

here a small code snippet to make thing bit more clear
it's changing the data in column 3 when a checkbox is checked.

using System.Collections.Generic;
using System.Windows.Forms;

namespace Test

 public partial class Form1 : Form
 
 public Form1()
 
 InitializeComponent();
 Initializeolv();
 

 private class VideoItem
 
 public int Index;
 public string OldName;
 public string NewName;
 
 private List<VideoItem> list = new List<VideoItem>();
 private void Initializeolv()
 

 for (var i = 1; i <= 10; i++)
 
 list.Add(new VideoItem Index = i, OldName = $"oldi", NewName = $"newi" );
 


 olv1.AddObjects(list);


 

 private void olv1_ItemChecked(object sender, ItemCheckedEventArgs e)
 
 list[e.Item.Index].NewName = "new200";


 olv1.RefreshObject(list);
 olv1.BuildList(true);