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DataGridView filter by specific field in C#
Generate code to filter DtatGridView based on specific field in C#

Here's C# code to filter DataGridView based on a specific field:

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Created DataGridView filtering code with multiple methods
v1
this code (dataGridView1.DataSource as DataTable).DefaultView.RowFilter = string.Format("LastName = '{0}'", textBox1.Text); convert in userdataset
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Converted DataGridView filter code to use DataSet
v2