的DataGrid上dropdownselectedindex值更改事件獲取特定的行

Question

林在

<asp:DataGrid ID="dgShowTiming" 
       runat="server" 
       AutoGenerateColumns="false" 
       OnItemCreated="dgShowTiming_ItemCreated"> 
    <Columns> 
     <asp:TemplateColumn HeaderText="HOUR"> 
      <ItemTemplate> 
       <asp:DropDownList ID="ddlShowTimingsHours" 
            runat="server" 
            CssClass="field1" 
            DataSource="<%#Hour()%>" 
            DataTextField="Hours" 
            DataValueField="Hours"> 
       </asp:DropDownList> 
      </ItemTemplate> 
     </asp:TemplateColumn> 
     <asp:TemplateColumn HeaderText="MINUTE"> 
      <ItemTemplate> 
       <asp:DropDownList ID="ddlShowTimingsminutes" 
            runat="server" 
            CssClass="field1" 
            DataSource="<%#Minute()%>" 
            DataTextField="Minutes" 
            DataValueField="Minutes"> 
       </asp:DropDownList> 
      </ItemTemplate> 
     </asp:TemplateColumn> 
     <asp:TemplateColumn HeaderText="AM/PM"> 
      <ItemTemplate> 
       <asp:DropDownList ID="ddlShowTimingAMPM" 
            runat="server" 
            CssClass="field1" 
            onchange="GetCountryDetails()"> 
        <asp:ListItem>AM</asp:ListItem> 
        <asp:ListItem>PM</asp:ListItem> 
       </asp:DropDownList> 
      </ItemTemplate> 
     </asp:TemplateColumn> 
     <asp:TemplateColumn HeaderText="Description"> 
      <ItemTemplate> 
       <asp:DropDownList ID="ddlShowTimingDescription" 
            runat="server" 
            DataSource="<%#Description()%>" 
            DataTextField="ShowTimeDesc" 
            DataValueField="ShowTimeDescID" 
            CssClass="field1"> 
       </asp:DropDownList> 
      </ItemTemplate> 
     </asp:TemplateColumn> 
     <asp:TemplateColumn HeaderText="Tax Details"> 
      <ItemTemplate> 
       <asp:Label ID="lblRowID" 
          runat="Server" 
          Text="View" 
          Style="cursor: pointer;" 
          onclick="FilmTaxDetailsOpen(this);"></asp:Label> 
      </ItemTemplate> 
     </asp:TemplateColumn> 
    </Columns> 
</asp:DataGrid> 

一個小project.Using Datagrid的工作，所以現在我在這個網格的問題是我必須在下拉ddlShowTimingAMPM的selectedindexchange價值，我想將描述更改爲NOON或早晨或晚上。我要面對的問題是如何獲取所選的3個下拉列表的值，僅基於該更改描述。

Answer 1

試試這個100％的工作和測試

一旦你找到從鱗次櫛比那麼你就可以找到該行內部的所有控件。您可以同時申請其他DropDownList並設置AutoPostBack="true"所有DropDownList

protected void ddlShowTimingsHours_OnSelectedIndexChanged(object sender, EventArgs e) 
    { 
     DataGridItem item = (DataGridItem)((DropDownList)sender).Parent.Parent; 

     DropDownList ddlShowTimingsHours = (DropDownList)item.FindControl("ddlShowTimingsHours"); 
     DropDownList ddlShowTimingsminutes= (DropDownList)item.FindControl("ddlShowTimingsminutes"); 
     DropDownList ddlShowTimingAMPM= (DropDownList)item.FindControl("ddlShowTimingAMPM"); 



    }