Essential Grid does not use the TextBox control as the basis for its TextBox cell, instead it uses the RichTextBox control which does not have a PassWord property.
In a future release, we will be adding many additional celltypes, including a celltype that uses the Windows Forms textbox, and thus has a password property.
If you just want to handle the display if the password, and not allow in-cell editing of the password, then you can handle the PrepareViewStyleInfo event and handle things there. If you do not set the Static celltype, then the cell will be editable, but it would show the old password when you start the edit. There are ways around this as well, but it would take more work.
private void gridDataBoundGrid1_PrepareViewStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.GridPrepareViewStyleInfoEventArgs e)
{
//password column
if(e.RowIndex > 0 && e.ColIndex == 2 && e.Style.Text.Length > 0)
{
string s = new String('*', e.Style.Text.Length);
e.Style.Text = s;
e.Style.CellType = "Static";
}
}
