我想在gridview上使用下拉列表...我有来自asp.net的以下代码
<asp:GridView ID="grdvEventosVendedor" runat="server" AllowPaging="True"
AutoGenerateColumns="False" CellPadding="4" DatakeyNames="idCita"
EmptyDataText="No Hay Eventos Para Este Vendedor" ForeColor="#333333"
GridLines="None" AllowSorting="True"
onpageindexchanging="grdvEventosVendedor_PageIndexChanging"
onrowcommand="grdvEventosVendedor_RowCommand"
onsorting="grdvEventosVendedor_Sorting" CellSpacing="1" HorizontalAlign="Center">
<AlternatingRowStyle BackColor="White" ForeColor="#284775"/>
<Columns>
<asp:TemplateField HeaderText="" ItemStyle-Width="35px">
<ItemTemplate>
<asp:ImageButton ID="imgBtnEdicEvento" runat="server"
CommandArgument='<%# Eval("idCita")%>' CommandName="Edicion"
Height="32px" ImageUrl="~/img/pencil_32.png" Width="32px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="" ItemStyle-Width="35px">
<ItemTemplate>
<asp:ImageButton ID="imgBtnDelete" runat="server"
CommandName="Borrar"
ImageUrl="~/img/1385_Disable_16x16_72.png"
onclientclick="return confirm('¿Desea eliminar el registro?');"
CommandArgument='<%# Eval("idCita")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Cliente" HeaderText="Cliente" InsertVisible="False" ReadOnly="True" SortExpression="Cliente" ItemStyle-Width="50px" />
<asp:BoundField DataField="Empresa" HeaderText="Empresa" InsertVisible="False" ReadOnly="True" SortExpression="Empresa" ItemStyle-Width="50px"/>
<asp:BoundField DataField="Telefono" HeaderText="Telefono" InsertVisible="False" ReadOnly="True" SortExpression="Telefono" ItemStyle-Width="50px"/>
<asp:BoundField DataField="Nextel" HeaderText="Nextel" InsertVisible="False" ReadOnly="True" SortExpression="Nextel" ItemStyle-Width="50px"/>
<asp:BoundField DataField="Tipo" HeaderText="Tipo" InsertVisible="False" ReadOnly="True" SortExpression="Tipo" ItemStyle-Width="50px"/>
<asp:BoundField DataField="Descripcion" HeaderText="Descripcion" InsertVisible="False" ReadOnly="True" SortExpression="Descripcion" ItemStyle-Width="100px"/>
<asp:TemplateField HeaderText="Fecha" SortExpression="Fecha" ItemStyle-Width="50px">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "Fecha", "{0:dd/MM/yyyy}")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbxFecha" runat="server" Text='<%#Bind("Fecha","{0:dd/MM/yyyy}") %>' ValidationGroup="gpEdicionAgenda">
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="HoraInicio" HeaderText="Hora" InsertVisible="False" ReadOnly="True" SortExpression="HoraInicio" ItemStyle-Width="50px"/>
<asp:BoundField DataField="Lugar" HeaderText="Lugar" InsertVisible="False" ReadOnly="True" SortExpression="Lugar" ItemStyle-Width="50px"/>
<asp:TemplateField HeaderText="Estado" ItemStyle-Width="50px">
<ItemTemplate>
<asp:DropDownList ID="dpdListEstatus" runat="server">
<asp:ListItem>Pendiente</asp:ListItem>
<asp:ListItem>Atendido</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="CRM" ItemStyle-Width="25px">
<ItemTemplate>
<asp:ImageButton ID="imgBtnCRM" runat="server"
CommandArgument='<%# Eval("IdCliente")%>' CommandName="CRM"
ImageUrl="~/img/activar.png" Width="16px" Height="16px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="VM" ItemStyle-Width="25px">
<ItemTemplate>
<asp:ImageButton ID="imgBtnVerMas" runat="server"
CommandArgument='<%# Eval("IdCliente")%>' CommandName="VerMas"
ImageUrl="~/img/search.png" Width="16px" Height="16px" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999" Font-Size="Small" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" Font-Size="Larger" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" HorizontalAlign="Center" Font-Size="Small" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#E9E7E2" />
<SortedAscendingHeaderStyle BackColor="#506C8C" />
<SortedDescendingCellStyle BackColor="#FFFDF8" />
<SortedDescendingHeaderStyle BackColor="#6F8DAE" />
</asp:GridView>
它所说的部分是我想要ddl的部分......
您可能还会注意到我总共使用4个按钮进行编辑，删除等操作... 不过我猜这是另一个故事...
我希望它能做一些事情......首先，你会注意到我有2个值的下拉列表......这是因为我从查询中获取了一个数据源，这些是2个可能的值这个专栏可以得到......
所以＃1应该是...我怎样才能让Ddl的Selected Value成为我从查询中获得的值....
和＃2我可以手动更改ddl的值，所以我希望它进行回发并使用新值更新该特定行（我需要回发的原因是这样我可以触发例如ddl ONSELECTEDINDEX已更改，因此使用cs文件创建新查询，更新行，然后再次刷新gridview）
我认为所有这些都可能与rowcommand有关，就像其他4个按钮的工作方式一样。
我正在使用C＃，所以如果你的方法涉及cs文件，你可以帮我使用C＃会很有帮助...
由于
答案 0 :(得分：4)
您应该在GridView上使用OnRowDatabound事件。像：
<asp:GridView ID="grdvEventosVendedor" OnRowDatabound="grdvEventosVendedor_RowDataBound">
<asp:TemplateField HeaderText="Estado" ItemStyle-Width="50px">
<ItemTemplate>
<asp:DropDownList ID="dpdListEstatus" runat="server" OnSelectedIndexChanged="dpdListEstatus_SelectedIndexChanged" AutoPostBack="True">
<asp:ListItem>Pendiente</asp:ListItem>
<asp:ListItem>Atendido</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
</asp:GridView>
然后在.cs后端代码中，您应该找到控件并根据dataitem值设置它的选定值。
protected void grdvEventosVendedor_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DropDownList dpdListEstatus = e.Row.FindControl("dpdListEstatus") as DropDownList;
dpdListEstatus.SelectedValue = DataBinder.Eval(e.Row.DataItem, "FieldName").ToString();
}
}
protected void dpdListEstatus_SelectedIndexChanged(object sender, EventArgs e)
{
//your logic goes here
}
您可以在ASPX代码的下拉列表中设置SelectedIndexChanged，并在该后端代码中继续您的逻辑。 Ow，不要忘记在下拉列表中设置autopostback = true。
答案 1 :(得分：0)
您可以使用GridView RowDataBound事件访问下拉列表，同样为下拉列表设置selectedindexchanged事件。
请参阅下面的链接，其中显示了您需要的解决方案的基础知识
http://www.codeproject.com/Articles/53559/Accessing-a-DropDownList-inside-a-GridView
答案 2 :(得分：0)
This is what I did that worked for me:
**Snippet from aspx:**
<asp:TemplateField HeaderText="RECORD_STATUS" SortExpression="RECORD_STATUS">
<EditItemTemplate>
<asp:DropDownList runat="server" ID="ddlRecStatus" SelectedIndex='<%# GetselectedRecStatus(Eval("RECORD_STATUS")) %>'
DataSource = '<%# Recs_Status %>' />
</EditItemTemplate>
</asp:TemplateField>
**Snippet from code-behind:**
protected void grdSAEdit_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
//Get the refernce to the list control
DropDownList ddlRecStatus = (DropDownList)(grdSAEdit.Rows[e.RowIndex].FindControl("ddlRecStatus"));
// Add it to the parameters
e.NewValues.Add("RECORD_STATUS", ddlRecStatus.Text);
}
protected string[] Recs_Status
{
get { return new string[] { "A", "E", "V", "Z" }; }
}
protected int GetselectedRecStatus(object status)
{
return Array.IndexOf(Recs_Status, status.ToString());
}