How can I make a row invisible in a datagridview?

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To make a row invisible in a datagridview, you can use the following code:

dataGridView.Rows[rowIndex].Visible = false;

Here, dataGridView refers to the datagridview control and rowIndex is the index of the row which you want to make invisible.

Setting the Visible property of the row to false will hide the row from the user's view. Note that the row will still exist in the datagridview's underlying data source and can be made visible again by modifying its Visible property.