在c＃.net中回发后维护tabindex [英] maintain tabindex after postback in c#.net

问题描述

<td>
 <asp:DropDownList ID="ddlcountry" runat="server" AutoPostBack="true" TabIndex="1" OnSelectedIndexChanged="ddlcountry_SelectedIndexChanged">
  <asp:ListItem Text="--Select--" Value="0"></asp:ListItem>
  </asp:DropDownList>
  </td>

<td><asp:DropDownList ID="ddlstate" Width="110px" TabIndex="2" runat="server"                                   AutoPostBack="true" OnSelectedIndexChanged="ddlstate_SelectedIndexChanged">
  <asp:ListItem Text="--Select--" Value="0"></asp:ListItem>
 </asp:DropDownList>

<td>
 <asp:DropDownList ID="ddldistricts" runat="server" TabIndex="3">
  <asp:ListItem Value="0" Text="--Select--"></asp:ListItem>
 </asp:DropDownList>
 </td>

正如我提到的三个下拉列表，通过选择一个下拉列表，另一个下拉列表需要绑定。因此，我保持autopostback属性为true。在选择第一个下拉列表光标后，我需要保持tabindex需要移动下一个下拉列表。我怎么能得到请帮助我。

As i mentioned three dropdown lists,By selecting one dropdownlist another dropdownlist need to bind. so for that i kept autopostback property to true.Here I need to maintain tabindex after selecting 1st dropdown list cursor need to move the next dropdown list.How can i get Please help me.

推荐答案

您只需将焦点设置为SelectedIndexChanged处理程序中所需的组合框。

You simply need to set focus to the combobox needed in your SelectedIndexChanged handler.

ddlstate.Focus();

在ddlstate处理程序中设置

And in the ddlstate handler you set

ddldistricts.Focus();

如果这有帮助请花时间接受解决方案。谢谢。

If this helps please take time to accept the solution. Thank you.

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