dynamically set datagridview row height

After populating the grid code, add this code:
for (int i = 0; i < this.dataGridView1.Rows.Count; i++)
{
this.dataGridView1.AutoResizeRow(i);
}

or  set your grid AutoSizeRowsMode property to:
AutoSizeRowsMode = System.Windows.Forms.DataGridViewAutoSizeRowsMode.DisplayedCells

Can you tell me what AutoSizeRowsMode  property is set on your grid?
http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridviewautosizerowsmode.aspx

If I set the Autoresize to DisplayedCells,  the rows  are  getting autoresized. However I have set the Height of the Rows in the RowTemplate to say 50. Iwouldlike for therows to have this as theminimum height. Only in thecases when the text wraps to thesecond line, I would like for the row to have autoresize property. In other words is it possible to set minimum height for the rows?

Thanks

Ok, this is an additional requirement to your question:
DataGridViewRow has a property MinimumHeight that maintains the display of the row by setting a limit to how far the user can resize the row's height through the user interface (UI).