New to C# / Binding data to a combo box

Question

How in the world do you bind a namevalue pair to a combo box in a C# Windows Form?!? I've been trying to figure this out for the past 8 hours and CANNOT figure it out! this: cboTest.Items.Add(asd); only adds a value... and I've Googled this thing to death.... thanks. dd

Niradhip Chakraborty · Answer

string strSQL =  ; string strEquipementID =  ; string Datetime =  ; SqlConnection sqlCon = null ; sqlCon = new SqlConnection ( ConfigurationManager .AppSettings[ ConnectionString ].ToString()); SqlCommand sqlCmd = new SqlCommand (); SqlDataAdapter adpData = null ; SqlDataReader sdrData = null ; strSQL = SELECT * from equipment  ; cboDatetime.Items.Clear(); // Id of dropdownlist cboDatetime.Items.Insert(0 ------- Select ------- ); sqlCmd.CommandText = strSQL; sdrData = sqlCmd.ExecuteReader(); if (sdrData.HasRows) { if (sdrData.Read()) { strEquipementID = sdrData[  id  ].ToString(); Datetime = sdrData[  dtime  ].ToString(); cboDatetime.Items.Add( new ListItem (Datetime strEquipementID)); } } sdrData.Close(); Note: cboDatetime is the 'id' of combobox

Eileen McGirr · Answer

I am trying to bind a name/value pair into a ComboBox in C#; what's the best way to do that?

shimtanny · Answer

Hi Add objects but tell the combobox which member to display. I've made a sample NameVaulePair class. public class NameValuePair { private string m_name; private object m_value; public NameValuePair(string name) : this(name null) { } public NameValuePair(string name object value) { this.m_name = name; this.m_value = value; } public string Name { get { return this.m_name; } } public object Value { get { return this.m_value; } set { this.m_value = value; } } Use it the following way: comboBox1.DisplayMember = Name; // Display NameValuePair.Name (of a given instance). comboBox1.Items.Add(new NameValuePair(FirstName Jony)); comboBox1.Items.Add(new NameValuePair(LastName Bravo)); comboBox1.Items.Add(new NameValuePair(Age 25)); You can do that with every class/object you wannt. Hope i helped... Simon