下拉列表应仅显示显示成员

Question

我绑定了一个集合ultracombo,我已经指定了value member和display member.这些集合有很多列,现在我只需在显示中显示一列,并为其分配一列value member.现在我看到columns收藏中的所有内容都显示为multicolumn.

//码

 cboUltra.ValueMember = "LookupValue"
 cboUltra.DisplayMember = "LookupValueDescription"
 cboUltra.DataSource = LoadLookupDetails(Field.LookUpCode)
 UltraGridRow.Cells("FieldValue").ValueList = cboUltra

我怎样才能做到这一点？

Answer 1

在C#中,您可以尝试以下操作: - >在超级组合时添加"ultraCombo1"...在表单加载时尝试以下代码:

    private void Form1_Load(object sender, EventArgs e)
    {
        // Fill data in ultracombo datasource
        DataTable dtt = new DataTable();
        dtt.Columns.Add("ID", typeof(int));
        dtt.Columns.Add("Name", typeof(string));
        dtt.Columns.Add("Age", typeof(int));
        dtt.Columns.Add("Address", typeof(string));
        dtt.Columns.Add("Sex", typeof(string));
        dtt.Rows.Add(new object[] {1,"Name1",20,"Address 1","Male"});
        dtt.Rows.Add(new object[] { 2, "Name2", 21, "Address 2", "Male" });
        dtt.Rows.Add(new object[] { 3, "Name3", 22, "Address 3", "Female" });
        dtt.Rows.Add(new object[] { 4, "Name4", 23, "Address 4", "Male" });
        dtt.Rows.Add(new object[] { 5, "Name5", 24, "Address 5", "Female" });
        ultraCombo1.DataSource = dtt;
        ultraCombo1.DataBind();
        //---------------------------------

        // hide all but show "ID" and "Name" only

        ultraCombo1.ValueMember = "ID";
        ultraCombo1.DisplayMember = "Name";
        for (int i = 0; i < ultraCombo1.Rows.Band.Columns.Count; i++)
        {
            ultraCombo1.Rows.Band.Columns[i].Hidden = true;
        }
        ultraCombo1.Rows.Band.Columns["ID"].Hidden = false;
        ultraCombo1.Rows.Band.Columns["Name"].Hidden =  false;                                   

    }

您的ultracombo将填充"ID"的值成员和"名称"的显示成员.