获取动态创建的下拉值

Question

我想dropdown在动态模板字段中存储动态创建的值.

如何dropdown在提交按钮上访问所选值的值.

我在下面使用

public class AddTemplateToGridView : ITemplate
{
    ListItemType _type;
    string _colName;

    public AddTemplateToGridView ( ListItemType type, string colname )
    {
        _type = type;
        _colName = colname;
    }

    void ITemplate.InstantiateIn ( System.Web.UI.Control container )
    {
        switch ( _type )
        {
            case ListItemType.Item:

                DropDownList ht = new DropDownList();
                ht.ID = "ht" + _colName;
                ht.Width = 50;
                ht.Items.Add(new ListItem("Select", "Select"));
                ht.Items.Add(new ListItem("P", "P"));
                ht.Items.Add(new ListItem("A", "A"));
                ht.Items.Add(new ListItem("H", "H"));
                ht.Items.Add(new ListItem("S", "S"));
                ht.Items.Add(new ListItem("L", "L"));
                ht.DataBinding += new EventHandler(ht_DataBinding);
                container.Controls.Add(ht);
                break;

        }
    }
}

Answer 1

这是我的自定义代码:创建一个Windows窗体"test",并在其加载时编写以下代码:

        private void test_Load(object sender, EventArgs e)
        {

            DataTable dt = new DataTable();
            dt.Columns.Add("Name");
            dt.Columns.Add("Values");


            dt.Rows.Add(new object[] {"Sagar","Sagar_Value" });
            dt.Rows.Add(new object[] { "Hari", "Hari_Value" });
            dt.Rows.Add(new object[] { "Ram", "Ram_Value" });

            LoadDynamicCombo(comboBox1, dt);

            dt.Clear();
            dt.Rows.Add(new object[] { "one", "one" });

            LoadDynamicCombo(comboBox2, dt);
        }


        public void LoadDynamicCombo(ComboBox _cmb,DataTable dt )
        {
            _cmb.DataSource = dt.Copy();
            _cmb.DisplayMember = "Name";
            _cmb.ValueMember = "Values";

        }

带有"Name"和"Values"列的数据表传递给函数"LoadDynamicCombo"接受组合和数据表的参数.Combo1填充第一组数据,而Combo2填充第二组数据.