Searching on this issue solve the problem by adding DataBindingComplete event and hide the specific row. DataBindingComplete is fired 2 times, 1 at the time of binding and 2nd after form_load event complete.
public partial class frmTestGirdBinding : Form
{
CustomDataCollection cdata = new CustomDataCollection();
Random rnd = new Random();
public frmTestGirdBinding()
{
InitializeComponent();
this.dataGridView1.DataBindingComplete += new System.Windows.Forms.DataGridViewBindingCompleteEventHandler(this.dataGridView1_DataBindingComplete);
}
private void frmTestGirdBinding_Load(object sender, EventArgs e)
{
BindingSource bindingSource1 = new BindingSource();
bindingSource1.DataSource = cdata;
dataGridView1.DataSource = bindingSource1;
}
private void button1_Click(object sender, EventArgs e)
{
for (int i = 0; i < cdata.Count; i++)
{
cdata[i].Reading = (float)rnd.NextDouble();
}
dataGridView1.Refresh();
}
private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
{
dataGridView1.Rows[2].Visible = false;
dataGridView1.Rows[3].Visible = false;
}
}
class CustomDataCollection : BindingList<customdata>
{
public CustomDataCollection()
{
this.Add(new CustomData() { SrNo = 1, Name = "A", Reading = 11.11F });
this.Add(new CustomData() { SrNo = 2, Name = "B", Reading = 22.11F });
this.Add(new CustomData() { SrNo = 3, Name = "C", Reading = 33.11F });
this.Add(new CustomData() { SrNo = 4, Name = "D", Reading = 44.11F });
this.Add(new CustomData() { SrNo = 5, Name = "E", Reading = 55.11F });
this.Add(new CustomData() { SrNo = 6, Name = "F", Reading = 66.11F });
this.Add(new CustomData() { SrNo = 7, Name = "G", Reading = 77.11F });
}
}
class CustomData : INotifyPropertyChanged
{
int srno;
public int SrNo
{
get { return srno; }
set { srno = value; OnPropertyChanged("SrNo"); }
}
string name;
public string Name
{
get { return name; }
set { name = value; OnPropertyChanged("Name"); }
}
float reading;
public float Reading
{
get { return reading; }
set { reading = value; OnPropertyChanged("Reading"); }
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged(string propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(propertyName));
}
}
#endregion
}</customdata>