How does FindControl method works if I need to find any Control which is inside GridView Template, more specifically ItemTemplate?
I have a hyperlink but it is not able to find the same.
Question updated with code
GridView Code is below:
<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(" rel="nofollow noreferrer noopener"ID#") %>');">
<img id="imgdiv<%# Eval("ID#") %>" alt="Click" 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(" rel="nofollow noreferrer noopener"ID#") %>');">
<img id="imgdiv1<%# Eval("ID#") %>" alt="Click here" 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>The RowDataBound event of the parent GridView is as below;
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('div{0}');", 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();
}
}The hyperlink hlPlus is a hyperlink field inside GridView‘s Template Field(Item Template).
Answers:
Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.
Method 1
Try this:
foreach(GridViewRow row in GridView1.Rows) {
if(row.RowType == DataControlRowType.DataRow) {
HyperLink myHyperLink = row.FindControl("myHyperLinkID") as HyperLink;
}
}If you are handling RowDataBound event, it’s like this:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
HyperLink myHyperLink = e.Row.FindControl("myHyperLinkID") as HyperLink;
}
}Method 2
You can use this code to find HyperLink in GridView. Use of e.Row.Cells[0].Controls[0] to find First position of control in GridView.
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";
}
}
}
}Method 3
I have done it accessing the controls inside the cell control. Find in all control collections.
ControlCollection cc = (ControlCollection)e.Row.Controls[1].Controls; Label lbCod = (Label)cc[1];
Method 4
Try with below code.
Like GridView in LinkButton, Label, HtmlAnchor and HtmlInputControl.
<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);" rel="nofollow noreferrer noopener" id="btnAnchor" runat="server">ButtonName</a>
<input type="hidden" runat="server" id="hdnBtnInput" value='<%#Eval("ID") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>Handling RowDataBound event,
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");
}
}Method 5
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;
}
}Method 6
If your GridView is databond, make an index column in the resultset you retrive like this:
select row_number() over(order by YourIdentityColumn asc)-1 as RowIndex, * from YourTable where [Expresion]
In the command control you want to use make the value of CommandArgument property equal to the row index of the DataSet table RowIndex like this:
<asp:LinkButton ID="lbnMsgSubj" runat="server" Text='<%# Eval("MsgSubj") %>' Font-Underline="false" CommandArgument='<%#Eval("RowIndex") %>' />Use the OnRowCommand event to fire on clicking the link button like this:
<asp:GridView ID="gvwStuMsgBoard" runat="server" AutoGenerateColumns="false" GridLines="Horizontal" BorderColor="Transparent" Width="100%" OnRowCommand="gvwStuMsgBoard_RowCommand">
Finally the code behind you can then do whatever you like when the event is triggered like this:
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;
}
}Method 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);
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0