DataGridViewColumn.DataPropertyName Property
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            by Captain Comic
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        Published on 2010-02-08T11:27:01Z
        Indexed on 
            2010/03/12
            18:27 UTC
        
        
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Hi
I have a DataGridView control and I want to populate it with data.
I use DataSource property
// dgvDealAsset is DataGridView
        private void DealAssetListControl_Load(object sender, EventArgs e)
        {
            dgvDealAssets.AutoGenerateColumns = false;
            dgvDealAssets.DataSource = DealAssetList.Instance.Values.ToList();
}
Now problem number one. The class of my collection does not contain only simple types that I can map to columns using DataPropertyName. This is the class that is contained in collection.
class MyClass
{
  public String Name;
  MyOtherClass otherclass;
}
class MyOtherClass
{
 public String Name;
}
Now I am binding properties of MyClass to columns
col1.DataPropertyName = "Name"  // Ok 
col2.DataPropertyName = "otherclass" // Not OK - I will have empty cell
The problem is that I want to display otherclass.Name field. But if I try to write
col2.DataPropertyName = "otherclass.Name" 
I get empty cell.
I tried to manually set the column
private void DealAssetListControl_Load(object sender, EventArgs e)
{
    dgvDealAssets.AutoGenerateColumns = false;
    dgvDealAssets.DataSource = DealAssetList.Instance.Values.ToList();
// iterate through rows and set the column manually
        foreach (DataGridViewRow row in dgvDealAssets.Rows)
        {
            row.Cells["Column2"].Value = ((DealAsset)row.DataBoundItem).otherclass.Name;
        }
But this foreach cycle takes about minute to complete (2k elements). How to solve this problem?
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