似乎没有为 __doPostBack 发出正确的 GridView 标记

I asked 这个问题 https://stackoverflow.com/questions/4852474/asp-net-gridview-update-button-fires-edit-event-handler关于 ASP.Net 中 GridView 控件的奇怪行为（我使用的是 C#）。

对于 GridView 中的每一行，都有一个“编辑”和“删除”链接。例如编辑有这个javascript:__doPostBack('gvwServers','Edit$0')- 所以显然服务器会发现有人点击了编辑行0 of gvwServers.

很公平。如果我单击“编辑”链接，我会收到回发，并且 GridView 会重新绘制，“编辑”按钮将替换为“更新”和“取消”按钮。标准行为。现在 - “取消”按钮有此链接javascript:__doPostBack('gvwServers','Cancel$0')- 正是我所期望的取消行0 of gvwServers。但是更新按钮有javascript:__doPostBack('gvwServers$ctl02$ctl00','')。这似乎没有任何意义。这似乎是我处理更新的例程未被触发的原因。

为什么 ASP 不输出正确的回发参数？

我的代码可以在上面的链接中找到。

<asp:GridView ID="gvwServers" runat="server" class="gvwServers"  
AutoGenerateColumns="false"  OnRowEditing="gvwServers_Edit" 
onrowcancelingedit="gvwServers_Cancelling" onrowdeleting="gvwServers_Deleting" 
onrowupdated="gvwServers_Updated" onrowupdating="gvwServers_Updating"
AutoGenerateEditButton=true AutoGenerateDeleteButton=true>

<columns>
    <asp:CommandField  ShowEditButton="true" />
    <asp:CommandField  ShowDeleteButton="true" /> 
    <asp:BoundField DataField="intServerID" visible="false" />

    <asp:TemplateField HeaderText = "Server Name">
        <ItemTemplate>
            <asp:Label ID="lblServerName" runat="server" Text='<%# Bind("txtName") %>'></asp:Label>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtServerName_Edit" runat="server" Text='<%# Bind("txtName") %>'></asp:TextBox>
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField  HeaderText = "Key">
        <ItemTemplate>
            <asp:Label ID="lblAppKey" runat="server" Text='<%# Bind("txtApplicationKey") %>'></asp:Label>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtAppKey_Edit" runat="server" Text='<%# Bind("txtApplicationKey") %>'></asp:TextBox>
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField  HeaderText = "Connection String">
        <ItemTemplate>
            <asp:Label ID="lblConnString" runat="server" Text='************'></asp:Label>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox runat="server" ID="txtConnString_Edit" Width="300px" Height="100px" Text='<%# Bind("txtConnectionString")%>' TextMode="MultiLine" ></asp:TextBox>
        </EditItemTemplate>
    </asp:TemplateField>

</columns>
</asp:GridView> 

不确定你在期待什么/没有发生什么。我拿了你的 gridview 代码并在另一个链接后面使用了你的代码。我在每个处理程序中添加了一个 Response.Write，它似乎按预期运行。

public class Item
{
    public int intServerID { get; set; }
    public string txtName { get; set; }
    public string txtApplicationKey { get; set; }
    public string txtConnectionString { get; set; }
}

protected void Page_Load(object sender, EventArgs e)
{
    Item item = new Item();
    item.intServerID = 1;
    item.txtName = "Apple";
    item.txtApplicationKey = "Orange";
    item.txtConnectionString = "Test";

    List<Item> items = new List<Item>();
    items.Add(item);

    gvwServers.DataSource = items;
    gvwServers.DataBind();
}

protected void gvwServers_Edit(object sender, GridViewEditEventArgs e)
{
    Response.Write("Edit");
    gvwServers.EditIndex = e.NewEditIndex;
    gvwServers.DataBind();
}
protected void gvwServers_Updated(object sender, GridViewUpdatedEventArgs e)
{
    Response.Write("Updated");
    gvwServers.DataBind();
}

protected void gvwServers_Updating(object sender, GridViewUpdateEventArgs e)
{
    Response.Write("Updating");
    gvwServers.DataBind();
}
protected void gvwServers_Deleting(object sender, GridViewDeleteEventArgs e)
{
    Response.Write("Delete");
    gvwServers.DataBind();
}
protected void gvwServers_Cancelling(object sender, GridViewCancelEditEventArgs e)
{
    Response.Write("Cancel");

    e.Cancel = true;
    gvwServers.EditIndex = -1;
    gvwServers.DataBind();
}