最近我问了一个类似的问题，你可以在下面的链接中找到
Using Dropdownlist in a gridview Asp.Net?
我有一个看起来像这样的网格视图......
<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"
onrowdatabound="grdvEventosVendedor_RowDataBound" >
<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:BoundField DataField="Estado" HeaderText="Estado" InsertVisible="False" ReadOnly="True" SortExpression="Estado" ItemStyle-Width="50px"/>--%>
<asp:TemplateField HeaderText="Estado" ItemStyle-Width="50px">
<ItemTemplate>
<asp:DropDownList ID="dpdListEstado" runat="server" OnSelectedIndexChanged="dpdListEstado_SelectedIndexChanged" AutoPostBack="True">
<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>
如链接中所述，我不得不手动添加一些代码，例如OnSelectedIndexChanged =“dpdListEstado_SelectedIndexChanged”AutoPostBack =“True”，并在cs文件中添加此代码...
protected void dpdListEstado_SelectedIndexChanged(object sender, EventArgs e)
{
}
我已经尝试了它并且它确实有效，每当我更改ddl的值时，它确实输入到int cs文件中的void ...
然而现在我有一个问题......
我需要记录中的Id，它存储在特定的行中（idCita，就像我使用CommandArgument的按钮一样）...这种方式可以使用我拥有的另一个类，它会触发一个可编辑的查询一个名为Estado的领域......
但是，我注意到当我使用CommandArguments时，我使用另一个名为...的空白
protected void grdvEventosVendedor_RowCommand(object sender, GridViewCommandEventArgs e)
{
int intIdCita = int.Parse(e.CommandArgument.ToString());
if (e.CommandName == "Edicion")
{
//Some Code
}
else if (e.CommandName == "Borrar")
{
//More Code
}
else if (e.CommandName == "CRM")
{
//Even More Code
}
else if (e.CommandName == "VerMas")
{
//....
}
}
有了这个我可以调用e.CommandName告诉我我按下了哪个按钮，e.CommandArgument是idCita的值...但是我注意到我之前向你展示的ddl void没有GridViewCommandEventArgs e ，而是它有一个EventArgs e ...
有没有办法可以从gridview获取idCita的值，一直到ddl void？
我需要在gridview代码和cs文件中添加什么？
由于
答案 0 :(得分：2)
重构你的代码是这样的 - 它应该让你大部分都在那里，另外看看将else if语句转换为更易读的switch case语句......
protected void dpdListEstado_SelectedIndexChanged(object sender, EventArgs e)
{
GridViewRow gvr = (GridViewRow)(((Control)sender).NamingContainer);
MeaningfulNameHere(int.Parse(grdvEventosVendedor.DataKeys[gvr.RowIndex]),"Estado");
}
protected void grdvEventosVendedor_RowCommand(object sender, GridViewCommandEventArgs e)
{
MeaningfulNameHere(int.Parse(e.CommandArgument.ToString()),e.CommandName);
}
private void MeaningfulNameHere(int id, string commandName)
{
if (commandName == "Edicion")
{
//Some Code
}
else if (commandName == "Borrar")
{
//More Code
}
else if (commandName == "CRM")
{
//Even More Code
}
else if (commandName == "VerMas")
{
//....
}
else if (commandName == "Estado")
{
}
}