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POListBox elements are duplicated when calling the selection of an index
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2013-12-19T03:40:32.093
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2013-12-19T06:08:53.020
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Problem: I have a listbox that i fill with a dataset in that dataset i have row nombre and row cod_seg. I assign row nombre to the property display member and the cod_seg to the property display member. In the selectindexchange event of that listbox i create another dataset that bring me data that depends of the selectvalue of the listbox that happens without problem, the problem is that when i select one item of the listbox it duplicate the tem select in the listbox. Dont know why this is happening and i check my code 10 times... Code: Fill Listbox <pre><code>private void FillData(int cs) { CS = cs; ds.Clear(); string cmd = "select CompaniaSeguro.Nombre,CompaniaSeguro.Telefono,CompaniaSeguro.Email from CompaniaSeguro where CompaniaSeguro.Cod_Comp = " + cs.ToString(); ds = mytool.Execute(cmd); if (ds.Tables[0].Rows.Count > 0) { txtNC.Text = ds.Tables[0].Rows[0]["Nombre"].ToString(); if (ds.Tables[0].Rows[0]["Telefono"].ToString().Trim().Length == 0) txtTelefono.Text = "No Asignado"; else txtTelefono.Text = ds.Tables[0].Rows[0]["Telefono"].ToString(); if (ds.Tables[0].Rows[0]["Email"].ToString().Trim().Length == 0) txtEmail.Text = "No Asignado"; else txtEmail.Text = ds.Tables[0].Rows[0]["Email"].ToString(); } ds.Clear(); cmd = "select Seguro.Cod_Seg , Seguro.Nombre from Seguro where Seguro.Cod_Comp = " + cs.ToString(); ds = mytool.Execute(cmd); if (ds.Tables[0].Rows.Count > 0) { listBox1.DataSource = ds.Tables[0]; listBox1.DisplayMember = "Nombre"; listBox1.ValueMember = "Cod_Seg"; finish = true; } } </code></pre> Code: Listbox selected index changed <pre><code>private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { if (finish == true) { if (listBox1.SelectedValue != null) { DataSet myds = new DataSet(); codS = listBox1.SelectedValue.ToString(); string cmd = "select Seguro.Nombre,Seguro.Descuento from Seguro where Seguro.Cod_Seg = " + codS; myds = mytool.Execute(cmd); if (ds.Tables[0].Rows.Count > 0) { MessageBox.Show("trae"); } } } } </code></pre> Image <a href="http://img208.imageshack.us/img208/4499/862x.png" rel="nofollow">Image </a>
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<c#><winforms><listbox><duplicates><selecteditem>
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ListBox elements are duplicated when calling the selection of an index
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1. PTQuestion
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1. USSahari Witbite
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Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.