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| public Form1() { InitializeComponent(); } DataTable dt = new DataTable("Person");
private void Form1_Load(object sender, EventArgs e) { DataTable dt = new DataTable("Person"); dt.Columns.Add("Name", System.Type.GetType("System.String")); dt.Columns.Add("Vorname", System.Type.GetType("System.String")); dt.Columns.Add("PersNr", System.Type.GetType("System.Int32")); dt.Columns.Add("GebDat", System.Type.GetType("System.DateTime")); dt.Columns["Name"].AllowDBNull = false; dt.Columns["PersNr"].Unique = true; dt.Columns["PersNr"].AllowDBNull = false;
dt.Rows.Add("Meier", "Inge", 123, new DateTime(1999, 02, 02)); dt.Rows.Add("Müller", "Inge", 124, new DateTime(1999, 02, 02)); dt.Rows.Add("Schulze", "Inge", 125, new DateTime(1999, 02, 02)); DgvSP.DataSource = dt; } private void ButAnzeige_Click(object sender, EventArgs e) { LbLAnzeige.Text += "\n+++dt.Rows.Count+++" + dt.Rows.Count; LbLAnzeige.Text += "\n+++DgvSP.Rows.Count+++" + DgvSP.Rows.Count;
} |