Forms Data Controls :: Cannot Find Control In Template After Page Change
Dec 1, 2010
I am using FindControl to get a hyperlink but it only works on the first page. It works fine until I click on another page number in the pager. Then the hyperlink is nothing. This is the hyperlink.
<asp:TemplateField HeaderText="Proj Id">
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Similar Messages:
May 14, 2010
In the Gridview RowDataBound event, I am trying to find the control LinkB_Addnew located in the footer of my Grdiview:
[Code]....
But I get the error --> Object reference not set to an instance of an object so It is like not found to me...
[Code]....
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Jan 19, 2010
I have a field that is based on asp.net membersip UserID. I can bind this to dropdowns which aren't in a detailsview just fine, but for somereason my code isnt working for finding the control properly.I have the following in detailsview.databound (where it was suggested to be placed)
[Code]....
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May 19, 2010
I am trying to target a control in a Detailsview in my codebehind, however I am getting an error "Name "control" is not declared" for example, i have a FileUpload field in the edit template of the detailsview, which I am trying to access as
FileField.PostedFile.SaveAs("directory")
I also tried adding a reference to the Detailsview id such as DetailsView1.FileField.PostedFile.SaveAs("directory")
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Jan 12, 2010
Here two have two grid inner and outergrid, When i am click the Edit Linkbuttom i am able to see the EditItemplate of innergrid.. where i can edit the Value.. When going to update that values in Data base.. i am not able to fine the control . Here is the code
<
asp:GridView
ID="GrdMeetings"
runat="server"
AutoGenerateColumns="False"
Width="100%"
OnRowDataBound="GrdMeetings_RowDataBound"
GridLines="Horizontal">
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<table
width="100%"
cellpadding="0"
cellspacing="0"
style="background-color:
#5a5a5a;color:
White">
<tr>
<td
style="width:
15%;"
align="center"
colspan="3">
Meeting Details
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table>
<tr>
<td>
<asp:Label
ID="txtyear"
runat="server"
Width="60px"
Text='<%# Container.DataItem %>'
/>
</td>
</tr>
<tr>
<asp:GridView
ID="MeetingDates"
runat="server"
AutoGenerateColumns="false"
Width="100%"
GridLines="Horizontal"
AutogenereateEditColumns="True"
ShowHeader="false"
CommandName="Meetingid"
OnRowEditing="MeetingDates_RowEditing"
OnRowUpdating="MeetingDates_RowUpdating">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<table
cellpadding="0"
cellspacing="0">
<tr>
<td>
<asp:LinkButton
ID="btnSave"
runat="server"
Text="Edit"
CommandName="Edit"
/>
<asp:Label
Visible="false"
ID="Label1"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="7">
<asp:Label
ID="lblProjectDate"
runat="server"
Width="100px"
Text='<%# Bind("Meetingdate") %>'
/>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle
CssClass="TextAlign"
/>
<EditItemTemplate>
<table
cellpadding="0"
cellspacing="0"
style="height:
50px;
margin-left:
50px;
text-align:
right">
<tr>
<td>
<asp:Label
Visible="false"
ID="Label2"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="0">
<b>
Edit For :</b>
<b>
<asp:Label
ID="TextBox1"
runat="server"
Width="150px"
Text='<%# Bind("Meetingdate") %>'
/></b>
</td>
</tr>
<tr>
<td>
<asp:Label
Visible="false"
ID="lblmeetingID"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="0">
<asp:TextBox
ID="txtMeetingDate"
onkeypress="dateValidation(this);"
runat="server"
Text='<%# Bind("Meetingdate") %>'
OnTextChanged="txtMeetingDate_TextChanged"></asp:TextBox>
<ajaxToolkit:CalendarExtender
ID="calEx"
Format="MM/dd/yyyy"
runat="server"
TargetControlID="txtMeetingDate">
</ajaxToolkit:CalendarExtender>
</td>
</tr>
</table>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<table
style="margin-left:
-0px">
<tr>
<td>
<asp:LinkButton
ID="btnUpdate"
runat="server"
Font-Bold="true"
CommandName="Update"
Visible="false"
Text="Save">
</asp:LinkButton>
</td>
<td>
<asp:LinkButton
ID="btnDelete"
runat="server"
Font-Bold="true"
CommandName="Delete"
Text="Delete"
Visible="false">
</asp:LinkButton>
</td>
<td>
<asp:LinkButton
ID="btnCancel"
runat="server"
Font-Bold="true"
CommandName="Cancel"
Text="Cancel"
Visible="false">
</asp:LinkButton>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Left"
VerticalAlign="Bottom"
Width="60%"
/>
</asp:TemplateField>
</Columns>
</asp:GridView>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<AlternatingRowStyle
BackColor="#99CCFF"
/>
</asp:GridView>
and the Events that are
[Code]....
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Feb 5, 2010
How could I change (programmatically) a couple of properties in a grdiview template ? For instance, the CalendarExtender6.enabled and the textbox, Duetext.readonly.
[Code].....
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Dec 13, 2010
i have a detailsview with a dropdownlist. i would like to be able to select a value from this dropdownlist and depending on the selectedvalue display a specific control/header in another column.
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Jan 4, 2010
I can't seem to reference a control properly, so that I could then change its properties. I have 3 fckeditor controls specified in edittemplate fields, but i only want to diplay them all if the querystring equals 1. so i created in aspx.cs file: {
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Jun 14, 2012
<asp:Content ID="Content3" runat="server" contentplaceholderid="ContentPlaceHolder3">
<asp:LoginView ID="LoginView1" runat="server">
<AnonymousTemplate>
<asp:Login ID="Login1" runat="server" BackColor="#FFFBD6" BorderColor="#FFDFAD"
BorderPadding="4" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"
Font-Size="0.8em" ForeColor="#333333" onauthenticate="Login1_Authenticate1"
[code].....
i have used an login control for the users who have not logged in and defined login verification method on the click event of the button but while excuting i do get an error
Error 1 The name 'Login1' does not exist in the current context
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Jul 27, 2010
I have one page that I always want the anonymous template to be displayed regardless of whether or not the user is logged in.
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Oct 31, 2010
I would like to find controls in the detailsview control placed in the EmptyData Template of the gridview. I am trying to create Insert new record for the gridview control.
1. If there are existing records in the table - works fine and sets my two values: I placed Detailsview and Insert Button in the footer of the gridview. I needed to set the values of two fields. When I click on the Insert button it saves new record and sets the field with the value (code attached - works fine). I also have a popup extender that opens detailsview - this works just fine.
2, If ther are not records in the table - saves record but cannot find and set controls on the detailsview Same thing setup in the EmptyData Template. The record is saved but I cannot Find and set the field value on the control.
1. Link button (on click) in the gridview footer (works fine)
protected void LinkButton1_Click1(object sender, EventArgs e)
{
string zupa1;
zupa1 = ddlSelectEmployee.SelectedValue;
try
{
DetailsView zupa = (DetailsView)gvTraining4.FooterRow.FindControl("DetailsView1"); TextBox zupa2 = (TextBox) zupa.FindControl("txtInsertEmployee");
zupa2.Text = zupa1;
}
catch
{
}
DetailsView dettraining = (DetailsView)gvTraining4.FooterRow.FindControl("DetailsView1");
TextBox training = (TextBox) dettraining.FindControl("txtTrainingType");
training.Text = "4";
}
2. EmptyDataTemplate.FindControl - can save record but cannot access txtInsertEmployee and txtTrainingType
DetailsView zupa = (DetailsView)gvTraining4.EmptyDataTemplate.FindControl("DetailsView1");TextBox
zupa2 = (TextBox)zupa.FindControl("txtInsertEmployee");TextBox
training = (TextBox)dettraining.FindControl("txtTrainingType");"4";
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Aug 3, 2012
I tried to get the LoginName control inside LoginView LoggedIn template , despite several methods, the code still could not work.
I wished to change the default username to the customer name.
Here is the code:
<asp:LoginView ID="LoginView1" runat="server">
<LoggedInTemplate>
Hello, <asp:LoginName ID="LoginName1" runat="server"></asp:LoginName>
<br />
<div style="text-align: right; margin-right: 5px ">
<asp:LoginStatus ID="LoginStatus1" runat="server" LogoutPageUrl="~/Home.aspx" Font-Underline="True" />
</div></div>
</LoggedInTemplate>
</asp:LoginView>
At the code behind :
protected void Login1_LoggedIn(object sender, EventArgs e) {
LoginName loginName = LoginView1.FindControl("LoginName1") as LoginName;
Response.Write(loginName.ToString()); //for now I used Response.Write for testing purposes
}
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Sep 6, 2010
I need to change the image in my hyperlink template column (2) for each row, based on a column 3 text value.So if column 3 has a text of 0 the hyperlink image of template column 2 should be noedit16.png for that row else it should be edit16.png.Here is what I have:
<asp:TemplateField>
<ItemStyle Wrap="False" />
<ItemTemplate>
[code]...
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Nov 29, 2010
I have 3 buttons that change the Information being displayed in my Gridview (Previous, Today, Forward). Now management wants to SUM the Date's information by column, I have figured out how to do this by changing the BoundField to a TemplateField and then add a FooterTemplate with a SQL DataSource. When I Press either the Previous or Forward button the data does not change in my Sum'd Footer column.
[Code]....
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Oct 21, 2015
How to access database values in footer template of repeater control in ASP.Net,C#. My Code is given below:
<asp:Repeater ID="rptrMaintenance" runat="server" OnItemDataBound="rptrMaintenance_DataBinding" >
<HeaderTemplate>
<table width="100%" cellpadding="0" cellspacing="0" valign="top">
[Code]....
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Apr 3, 2010
I've been working with this tutorial:
[URL]
It's basically how to create an editable gridview.
I've got it up and working, but I need to change the width/height of the textboxes when the gridview is in edit mode.
The problem is, when the textboxes are rendered, they don't have ID's so I can't use FindControl to modify the textboxes.
Adding textboxes in the template items just created an independant - textbox that doesn't do anything.
My question is, how can I find these textboxes & change their height/widths, or how can I find these textboxes & assign ID's to them...so I can modify their height/widths?
Here's a snippet of what I've been playing with....haven't had any luck though...I'm probably way off:
[code]....
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Aug 21, 2010
I have grid view control that includes a dropdown control in a template field.I wish to execute some code when the value is changed in the dropdown list. Can't figure out how to capture this event though?
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Jun 8, 2010
I am planning to use grid view control, before was using datagrid, planning on switching to gridview:
<asp:TemplateField HeaderText="Deleted">
<ItemTemplate>
<asp:Image id=ImgDeleted runat="server" Height="13px" Width="21px" ImageUrl='<%# [code]...
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Apr 20, 2010
How to change the values in gridview on text change of templated control without databind again?the value of templated text boxes should change If i change the value of one of the templated textbox then accordingly(By mathematical calculations) the vlaues of all tempated textboxes should also change.
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Dec 11, 2012
I have gridview in my page that I use hyperlink on it
<asp:TemplateField ItemStyle-Width = "80px" ItemStyle-HorizontalAlign="right"
ItemStyle-VerticalAlign="Middle">
<ItemTemplate>
<asp:HyperLink ID="lnkRemove2" runat="server" CssClass="LBP3E" Text = "more.." NavigateUrl='<%# "state/view.aspx?BehCode="+Eval("Behcode")+"&Id="+Eval("Id") %>'></asp:HyperLink>
</ItemTemplate>
[code].....
now I want when users click on hyperlink according to above table if their behcode=1111 it go to show.aspx(it is anotherpage that I made) else it go to View.aspx page/
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May 17, 2010
have been trying to find radiobutton list in my content page which is in an update panel with no luck. I tried the below code:
Dim content As ContentPlaceHolder =
DirectCast(Me.Master.FindControl("ContentPlaceHolder1"),
ContentPlaceHolder)
[code]...
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Nov 8, 2010
i have a Gridview inside a Multiview control.
i want to obtain the value of a column from a textbox added to a template.?
alternatively, is it possible to set the mode to permanent Update with command buttons?
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Mar 15, 2010
i have a gridview control i added checkbox contrl dynamically but i am not getiing the reference of checkbox in button clilck event here is my code Gridvew
[Code]....
.vb code
[Code]....
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Oct 31, 2010
i am working now on plan to create my CMS ,i want to know how i can change my website html template from the control panel for my CMS?
like the dotnetnuke CMS , i want to use the theming feature.
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Jan 14, 2010
I am simply trying to change the listView template based on a value in the listview data. I do have this displaying the information correctly. Except when I try to change the item template based on a value in the listview. My code is below ....
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