empty string

[realmontanakid]

Hi I got following function. When I debug the code '"+Name+"' is Name="System.Data.DataRowView". Does anybody knows why? private void menuItem1_Select(object sender, System.EventArgs e) { string Name = this.listBox1.SelectedItem.ToString(); OleDbConnection conn = new OleDbConnection(connString); OleDbCommand dbCommand = new OleDbCommand("SELECT Beschreibung FROM tbl_T5 WHERE (Rechner = '"+Name+"')", conn); conn.Open(); OleDbDataReader dbReader; dbReader = dbCommand.ExecuteReader(); dbReader.Read(); if (dbReader.HasRows) { this.menuItem2.Text = dbReader["Beschreibung"].ToString(); } dbReader.Close(); conn.Close(); }

[mav northwind]

That's quite easy: Name is set at exactly one location, so the value you see is the result of this.listBox1.SelectedItem.ToString();. That means the selected item in your listBox1 is a DataRowView. DataRowView doesn't have an overloaded ToString method, so you simply get the type name. But what's the question? Obviously you expect Name to be something else. Could it be that you don't want one of listBox1's items? Without further info we can only guess... mav

[ESTAN]

Try replace this.listBox1.SelectedItem.ToString(); by this.listBox1.SelectedItem.Text;

[realmontanakid]

got it.. DataRowView dv =(DataRowView)this.listBox1.SelectedItem; this.menuItem2.Text = dv["Beschreibung"].ToString(); Thank you