Question

我一直在寻找问题的答案，但是什么都没找到，所以请您帮忙！

我有一个页面，该页面可以具有多个网格视图，并根据需求动态创建，并作为子控件附加到服务器端div。

ASPX：

        <div ID="DivStreams" runat="server">
        </div>

后面的代码：

                // gridview
                GridView gv = new GridView
                {
                    ID = "gridFiles_" + stream.Part,
                    CssClass = "gridview",
                    EmptyDataText = "There are no files in this stream",
                    AutoGenerateColumns = false,
                    DataKeyNames = new string[] { "FileID", "PrismPart" },
                    ShowFooter = true
                };
                gv.RowDataBound += gridFiles_RowDataBound;

                -- more css styling here, removed to shorten message --


                // gridview columns
                gv.Columns.Clear();
                gv.Columns.Add(new BoundField() { HeaderText = "Print Filename", DataField = "PrintFilename" });
                gv.Columns.Add(new BoundField() { HeaderText = "Envelopes", DataField = "Envelopes" });
                gv.Columns.Add(new BoundField() { HeaderText = "Sheets", DataField = "Sheets" });
                gv.Columns.Add(new BoundField() { HeaderText = "Status", DataField = "Status" });
                gv.Columns.Add(new TemplateField() { ItemTemplate = new GridDmChangeStream(), HeaderText = "Change Stream" });
                DivStreams.Controls.Add(gv);

                // bind
                gv.DataSource = stream.Files;
                gv.DataBind();

    protected void gridFiles_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        List<DmStream> streams = ((List<DmStream>)ViewState["streams"]);

        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            DropDownList ddl = (DropDownList)e.Row.FindControl("ddlPrismPart");
            Dictionary<int, string> partsAndNames = new Dictionary<int, string>();
            partsAndNames.Add(0, "");
            foreach (DmStream stream in streams)
            {
                if (!stream.Locked && stream.Part != 0 && e.Row.NamingContainer.ID != "gridFiles_" + stream.Part) 
                    partsAndNames.Add(stream.StreamID, "Part " + stream.Part + " - " + stream.StreamName);
            }
            partsAndNames.Add(-1, "Cancel File");
            ddl.DataSource = partsAndNames;
            ddl.DataBind();
            if (e.Row.NamingContainer.ID == "gridFiles_0")
            {
                ddl.CssClass += " missingDetails";
                btnManageJob.Enabled = false;
            }
            ddl.SelectedIndexChanged += ddlChangeStream_SelectedIndexChanged;
        }

        if (e.Row.RowType == DataControlRowType.Footer)
        {
            foreach (DmStream stream in streams)
            {
                if (e.Row.NamingContainer.ID == "gridFiles_" + stream.Part)
                {
                    e.Row.Cells[0].Text = "Totals";
                    e.Row.Cells[1].Text = stream.Files.Sum(o => o.Envelopes).ToString();
                    e.Row.Cells[2].Text = stream.Files.Sum(o => o.Sheets).ToString();
                }
            }
        }
    }

class GridDmChangeStream : ITemplate
{
    public void InstantiateIn(System.Web.UI.Control container)
    {
        DropDownList ddl = new DropDownList
        {
            ID = "ddlPrismPart",
            CssClass = "form-control",
            DataValueField = "Key",
            DataTextField = "Value",
            AutoPostBack = true
        };
        container.Controls.Add(ddl);
    }
}

这很好，但是现在我需要在上面的动态网格中添加一个复选框列。

                gv.Columns.Add(new CheckBoxField() { HeaderText = "Change Stream", DataField="Selected" });

因此，用户将选择所需的复选框，然后单击一个按钮（仍要添加-它可能位于网格页脚中，并且仅适用于同一网格中的复选框）。

但是当通过单击新按钮进行回发时，如何在服务器端打勾呢？

如果它是静态网格，我知道该怎么做，但是有很多动态网格，我不确定该怎么做？

我认为可能可以做一个client-onclick事件，即调用一些JS，以遍历网格，构建一个带分隔符的复选框的复选框，然后手动调用__doPostbackAction，并在服务器端拦截该调用，解析定界的字符串，然后采取相应措施。
但我希望有更好/更简便的方法？

谢谢！

PS，我对此并不陌生，所以请提供示例和清晰的解释，以便我的简单头脑可以理解:)谢谢

ASP.Net，从动态创建的Gridviews中获取CheckBox值

0 个答案: