如何在 GridView 的 TemplateField 中找到控件？
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【中文标题】如何在 GridView 的 TemplateField 中找到控件？【英文标题】：How to find Control in TemplateField of GridView? 【发布时间】：2011-10-15 23:34:30 【问题描述】：如果我需要找到GridView Template 中的任何Control，更具体地说是ItemTemplate，FindControl 方法如何工作？
我有一个hyperlink，但找不到相同的。
问题已用代码更新
GridView 代码如下：
<asp:GridView ID="grvYourOpportunities" runat="server" AllowPaging="True" AutoGenerateColumns="False"
DataKeyNames="ID#,B,H" PageSize="20" CellPadding="4" ForeColor="#333333" GridLines="Both"
OnRowDataBound="grvYourOpt_RowDataBound">
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
i
</HeaderTemplate>
<ItemTemplate>
<%# Eval("i") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
H
</HeaderTemplate>
<ItemTemplate>
<%--<a href="javascript:ShowChildGrid('div<%# Eval("ID#") %>');">
<img id="imgdiv<%# Eval("ID#") %>" border="0" src="plus.gif" runat="server" /> </a> --%>
<asp:HyperLink runat="server" ID="hlPlus" ImageUrl="~/plus.gif"></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
B
</HeaderTemplate>
<ItemTemplate>
<%--<%# Eval("B") %>--%>
<a href="javascript:ShowChildGridForBCol('div1<%# Eval("ID#") %>');">
<img id="imgdiv1<%# Eval("ID#") %>" border="0" src="tempY.png" />
</a>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
ID.Nr.
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ID#")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Entry Date
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Entry Date") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="20px" ItemStyle-Width="20px">
<HeaderTemplate>
BU
</HeaderTemplate>
<ItemTemplate>
<%# Eval("BU")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
BE
</HeaderTemplate>
<ItemTemplate>
<%# Eval("BE")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Product Family
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Product Family")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Project Name
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Project Name")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
SOP
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SOP")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Award Date
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Award Date")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Milestone Next Date
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Milestone Next Date")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Contract Status
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Contract Status")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Prob.Of Success
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ProbSuccess")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Key Account
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Key Account")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Sales SubRegion
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Sales SubRegion")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Growth
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Growth")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Sales p.a.OE mio$
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SalesOE")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Sales p.a.AM mio$
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SalesAM")%>
</ItemTemplate>
</asp:TemplateField>
<%--GridView 2, 3--%>
<asp:TemplateField>
<ItemTemplate>
<tr>
<td align="left" style="margin-left: 10px;" colspan="5">
<div id="div<%# Eval("ID#") %>" style="display: none; position: relative; left: 110px;">
<asp:GridView ID="GridView2" runat="server" Width="40%" AutoGenerateColumns="false"
DataKeyNames="Entry Date" EmptyDataText="No orders for this customer." CellPadding="0"
ForeColor="#333333" GridLines="Both">
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<HeaderStyle CssClass="header" />
<RowStyle CssClass="row" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ID#")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Entry Date") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ID#")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-Wrap="false">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Other Text") %>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</td>
</tr>
<tr>
<td align="left" colspan="19">
<div id="div1<%# Eval("ID#") %>" style="display: none; position:relative; left: 110px;">
<asp:GridView ID="GridView3" runat="server" AutoGenerateColumns="false" DataKeyNames="Entry Date"
EmptyDataText="No orders for this customer." CellPadding="0" ForeColor="#333333"
GridLines="Both" Width="100%">
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<%--<HeaderStyle CssClass="header" />
<RowStyle CssClass="row" />--%>
<Columns>
<%--<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
</ItemTemplate>
</asp:TemplateField>--%>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ID#")%>
</ItemTemplate>
</asp:TemplateField>
<%-- <asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Entry Date") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="20px" ItemStyle-Width="20px">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("BU")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("BE")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Product Family")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Project Name")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SOP")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Award Date")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Milestone Next Date")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Contract Status")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ProbSuccess")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Key Account")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Sales SubRegion")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Growth")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SalesOE")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SalesAM")%>
</ItemTemplate>
</asp:TemplateField>--%>
</Columns>
</asp:GridView>
</div>
</td>
</tr>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
父GridView的RowDataBound事件如下；
Protected void grvYourOpt_RowDataBound(object sender, GridViewRowEventArgs e)
if (e.Row.RowType == DataControlRowType.DataRow)
string colId = grvYourOpportunities.DataKeys[e.Row.RowIndex].Values[0].ToString();
string colB = grvYourOpportunities.DataKeys[e.Row.RowIndex].Values[1].ToString();
string colH = grvYourOpportunities.DataKeys[e.Row.RowIndex].Values[2].ToString();
#region "Commented Code for Col.B"
//if (colB == "Y")
//
// e.Row.Cells[2].Text = "<img src='tempY.png'>";
//
//else
//
// e.Row.Cells[2].Text = "<img src='tempN.png'>";
//
#endregion
#region "Commented code for Col.H"
if (colH == "1")
e.Row.Cells[1].Text = string.Empty;
//e.Row.Cells[1].Text = "<a href=''> <img id='13' alt='Click' border='0' src='plus.gif'/> </a>";
string js = string.Format("javascript:ShowChildGrid('div0');", colId);
HyperLink lnk = (HyperLink)e.Row.FindControl("hlPlus");
if (lnk!=null)
lnk.NavigateUrl = js;
lnk.ImageUrl = "plus.gif";
lnk.Visible = true;
//Page.ClientScript.RegisterStartupScript(this.GetType(), "HCol", "ShowChildGrid("+ colId + ");", true);
else
e.Row.Cells[1].Text = string.Empty;
e.Row.Cells[1].Text = "";
#endregion
DataTable dt1 = new DataTable();
DataTable dt2 = new DataTable();
DataRow dr1 = null;
DataRow dr2 = null;
DataRow dr3 = null;
DataRow dr4 = null;
DataRow dr5 = null;
DataRow dr7 = null;
DataRow r = dt1.NewRow();
DataSet ds1 = new DataSet();
DataSet ds2 = new DataSet();
dt1.TableName = "Opportunity1";
dt1.Columns.Add(new System.Data.DataColumn("ID#", typeof(System.String)));
dt1.Columns.Add(new System.Data.DataColumn("Entry Date", typeof(System.String)));
dt1.Columns.Add(new System.Data.DataColumn("Other Text", typeof(System.String)));
ds1.Tables.Add(dt1);
dt2.Columns.Add(new System.Data.DataColumn("ID#", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Entry Date", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("BU", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("BE", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Product Family", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Project Name", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("SOP", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Award Date", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Milestone Next Date", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Contract Status", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("ProbSuccess", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Key Account", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Sales SubRegion", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("Growth", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("SalesOE", typeof(System.String)));
dt2.Columns.Add(new System.Data.DataColumn("SalesAM", typeof(System.String)));
ds2.Tables.Add(dt2);
dr2 = dt1.NewRow();
dr3 = dt1.NewRow();
dr4 = dt1.NewRow();
dr5 = dt1.NewRow();
dr1["ID#"] = "";
dr2["ID#"] = "";
dr3["ID#"] = "";
dr4["ID#"] = "";
dr5["ID#"] = "";
dr1["Entry Date"] = "18/01/2010";
dr2["Entry Date"] = "19/01/2010";
dr3["Entry Date"] = "20/01/2010";
dr4["Entry Date"] = "21/01/2010";
dr5["Entry Date"] = "14/01/2010";
dr1["Other Text"] = "17:25CET changed by"; // - product family: ABS, Milestone Date: 23.02.1022, Contract Status: Signed, Probability of success: 100%";
dr2["Other Text"] = "18:44CET changed by"; //- product family: ABS, Milestone Date: 23.02.1022, Contract Status: Signed, Probability of success: 100%";
dr3["Other Text"] = "19:25CET changed by"; //- product family: ABS, Milestone Date: 23.02.1022, Contract Status: Signed, Probability of success: 100%";
dr4["Other Text"] = "14:25CET changed by"; //- product family: ABS, Milestone Date: 23.02.1022, Contract Status: Signed, Probability of success: 100%";
dr5["Other Text"] = "11:25CET changed by"; //- product family: ABS, Milestone Date: 23.02.1022, Contract Status: Signed, Probability of success: 100%";
dt1.Rows.Add(dr1);
dt1.Rows.Add(dr2);
dt1.Rows.Add(dr3);
dt1.Rows.Add(dr4);
dt1.Rows.Add(dr5);
GridView gv12 = (GridView)e.Row.FindControl("GridView2");
gv12.DataSource = ds1.Tables[0];
gv12.DataBind();
for (int i = 0; i < gv12.Rows.Count; i++)
gv12.RowStyle.BackColor = System.Drawing.Color.Gray;
dr7 = dt2.NewRow();
dr7["ID#"] = "11-0101";
dr7["Entry Date"] = "19/01/2010";
dr7["BU"] = "VDC";
dr7["BE"] = "ASES";
dr7["Product Family"] = "Car Air Systems";
dr7["Project Name"] = "Example";
dr7["SOP"] = "09/08/2011";
dr7["Award Date"] = "10/2011";
dr7["Milestone Next Date"] = System.DateTime.Today.ToString("dd.MM.yyyy");
dr7["Contract Status"] = "won";
dr7["ProbSuccess"] = "70%";
dr7["Key Account"] = "E-Paccar";
dr7["Sales SubRegion"] = "North America";
dr7["Growth"] = "10%";
dr7["SalesOE"] = "150";
dr7["SalesAM"] = "18";
dt2.Rows.Add(dr7);
GridView gv13 = (GridView)e.Row.FindControl("GridView3");
gv13.DataSource = ds2.Tables[0];
gv13.DataBind();
hyperlink hlPlus 是hyperlink 位于GridView 的模板字段（项目模板）中的字段。
【问题讨论】：
【参考方案1】：试试这个：
foreach(GridViewRow row in GridView1.Rows)
if(row.RowType == DataControlRowType.DataRow)
HyperLink myHyperLink = row.FindControl("myHyperLinkID") as HyperLink;
如果你在处理 RowDataBound 事件，是这样的：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
if(e.Row.RowType == DataControlRowType.DataRow)
HyperLink myHyperLink = e.Row.FindControl("myHyperLinkID") as HyperLink;
【讨论】：
你能不能移动"HyperLink lnk = (HyperLink)e.Row.FindControl("hlPlus");"在“if (colH == "1")”之外？ 如果您按照我的建议，您的代码应该可以工作，您确定您提供了正确的 ID 等吗？ 是的，我提供了正确的 ID。我猜你的代码应该包括 e.row.findcontrol 而不是 row.FindControl 另外，我相信你知道超链接在gridview控件的Item Template里面 是的，对不起，我的第二个代码确实应该是“e.Row.FindControl”，但您的代码已经有了。【参考方案2】：您可以使用此代码在 GridView 中找到HyperLink。使用e.Row.Cells[0].Controls[0] 查找控件在GridView 中的First 位置。
protected void AspGrid_RowDataBound(object sender, GridViewRowEventArgs e)
if(e.Row.RowType == DataControlRowType.DataRow)
DataRowView v = (DataRowView)e.Row.DataItem;
if (e.Row.Cells.Count > 0 && e.Row.Cells[0] != null && e.Row.Cells[0].Controls.Count > 0)
HyperLink link = e.Row.Cells[0].Controls[0] as HyperLink;
if (link != null)
link.Text = "Edit";
【讨论】：
【参考方案3】：我已经完成了访问单元格控件内的控件。在所有控件集合中查找。
ControlCollection cc = (ControlCollection)e.Row.Controls[1].Controls;
Label lbCod = (Label)cc[1];
【讨论】：
【参考方案4】：protected void gvTurnos_RowDataBound(object sender, GridViewRowEventArgs e)
try
if (e.Row.RowType == DataControlRowType.EmptyDataRow)
LinkButton btn = (LinkButton)e.Row.FindControl("btnAgregarVacio");
if (btn != null)
btn.Visible = rbFiltroEstatusCampus.SelectedValue == "1" ? true : false;
catch (Exception ex)
throw ex;
【讨论】：
【参考方案5】：试试下面的代码。
类似于 LinkButton、Label、htmlAnchor 和 HtmlInputControl 中的 GridView。
<asp:GridView ID="mainGrid" runat="server" AutoGenerateColumns="false" CssClass="table table-bordered table-hover tablesorter"
OnRowDataBound="mainGrid_RowDataBound" EmptyDataText="No Data Found.">
<Columns>
<asp:TemplateField HeaderText="HeaderName" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:Label runat="server" ID="lblName" Text=' <%# Eval("LabelName") %>'></asp:Label>
<asp:LinkButton ID="btnLink" runat="server">ButtonName</asp:LinkButton>
<a href="javascript:void(0);" id="btnAnchor" runat="server">ButtonName</a>
<input type="hidden" runat="server" id="hdnBtnInput" value='<%#Eval("ID") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
处理 RowDataBound 事件，
protected void mainGrid_RowDataBound(object sender, GridViewRowEventArgs e)
if (e.Row.RowType == DataControlRowType.DataRow)
Label lblName = (Label)e.Row.FindControl("lblName");
LinkButton btnLink = (LinkButton)e.Row.FindControl("btnLink");
HtmlAnchor btnAnchor = (HtmlAnchor)e.Row.FindControl("btnAnchor");
HtmlInputControl hdnBtnInput = (HtmlInputControl)e.Row.FindControl("hdnBtnInput");
【讨论】：
【参考方案6】：如果您的 GridView 是数据绑定，请在您检索的结果集中创建一个索引列，如下所示：
select row_number() over(order by YourIdentityColumn asc)-1 as RowIndex, * from YourTable where [Expresion]
在您要使用的命令控件中，使 CommandArgument 属性的值等于 DataSet 表 RowIndex 的行索引，如下所示：
<asp:LinkButton ID="lbnMsgSubj" runat="server" Text='<%# Eval("MsgSubj") %>' Font-Underline="false" CommandArgument='<%#Eval("RowIndex") %>' />
使用 OnRowCommand 事件在单击链接按钮时触发，如下所示：
<asp:GridView ID="gvwStuMsgBoard" runat="server" AutoGenerateColumns="false" GridLines="Horizontal" BorderColor="Transparent" Width="100%" OnRowCommand="gvwStuMsgBoard_RowCommand">
最后，当事件被触发时，你背后的代码可以做任何你喜欢的事情：
protected void gvwStuMsgBoard_RowCommand(object sender, GridViewCommandEventArgs e)
Panel pnlMsgBody = (Panel)gvwStuMsgBoard.Rows[Convert.ToInt32(e.CommandArgument)].FindControl("pnlMsgBody");
if(pnlMsgBody.Visible == false)
pnlMsgBody.Visible = true;
else
pnlMsgBody.Visible = false;
【讨论】：
【参考方案7】：string textboxID;
string da;
textboxID = "ctl00$MainContent$grd$ctl" + (grd.Columns.Count + j).ToString() + "$txtDyna" + (k).ToString();
textboxID= ctl00$MainContent$grd$ctl12$ctl00;
da = Request.Form(textboxID);
【讨论】：
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