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标题: dropdownlist多选的问题 [打印本页]

作者: jiangsushisi 时间: 2014-10-9 16:50
标题: dropdownlist多选的问题
前台代码：
<form id="form1" runat="server">
<f:pagemanager id="

ageManager1" runat="server" />
<f

ropDownList ID="drop1" runat="server" Label="Label" AutoPostBack="true" EnableMultiSelect="true" >
</f

ropDownList>
<f

ropDownList ID="ddlEJBCL" runat="server" AutoPostBack="true" EnableMultiSelect="true" Width="120px">
</f

ropDownList>
<f:Button ID="Button1" runat="server" Text="Button">
</f:Button>
</form>
后台代码：
protected void Page_Load(object sender, EventArgs e)
{
      ddlEJBCL.Items.Clear();
      FineUI.ListItem list = new FineUI.ListItem();
      list.Text = "a";
      list.Value = "a";
      FineUI.ListItem list1 = new FineUI.ListItem();
      list1.Text = "b";
      list1.Value = "b";
      FineUI.ListItem list2 = new FineUI.ListItem();
      list2.Text = "c";
      list2.Value = "c";

      ddlEJBCL.Items.Add(list);
      ddlEJBCL.Items.Add(list1);
      ddlEJBCL.Items.Add(list2);

      string[] ss = new string[] { "a", "b", "c" };
      foreach (string s in ss)
      {
         ddlEJBCL.Items.FindByText(s).Selected = true;
      }
}

protected void Button1_Click(object sender, EventArgs e)
{
      drop1.Items.Clear();
      FineUI.ListItem list = new FineUI.ListItem();
      list.Text = "a";
      list.Value = "a";
      FineUI.ListItem list1 = new FineUI.ListItem();
      list1.Text = "b";
      list1.Value = "b";
      FineUI.ListItem list2 = new FineUI.ListItem();
      list2.Text = "c";
      list2.Value = "c";

      drop1.Items.Add(list);
      drop1.Items.Add(list1);
      drop1.Items.Add(list2);

      string[] ss = new string[] { "a", "b", "c" };
      foreach (string s in ss)
      {
         drop1.Items.FindByText(s).Selected = true;
      }
}

dropdownlist在Page_Load里能够实现多个选中，在Button1_Click里不能实现多个选中，只能显示一个选中

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