Web Forms :: How To Find Control Inside User Control From Page

Nov 10, 2010

I have on dropdown that show hide user control. In the user control i have Ok and Cancel button.

When the dropdown change i want to apply ValidationGroup on the Ok button that is inside UserControl.

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User Controls :: Find TextBox Control Inside UserControl On Page

Jan 15, 2014

I have a user control with a textbox. I am loading it at runtime on parent page with code behind.After click of button on a parent page i need the text of that usercontrol's textbox.

I tried with following code but it does not work for me

myusercontrol us = new myusercontrol();
TextBox textbox = (TextBox)us.FindControl("txtusercontrol");
string str = textbox.Text.ToString();

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User Controls :: Find And Access Master Page Control From UserControl Inside Content Page

Jan 24, 2014

On masterPage i have button btnTest, how hide button from masterPage on userControl.ascx

example:  

btnSecondPage_click
{
   btnTest.visible = false;
}

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Web Forms :: Find A Control Inside Nested Master Page And Another Control Container?

Dec 1, 2010

I'm trying to find a TextBox in the code-behind page, it's inside a nested master page and also then inside another control container (it's inside ctrlCheckoutShippingAddress also) .

I've tried this:

[Code]....

[Code]....

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Web Forms :: VB.NET - Unable To Find Control Inside Usercontol And Master Page

Mar 29, 2010

Unable to find control inside the usercontrol in vb.net

code of master page

[Code]....

code of master page 2

[Code]....

In the web user control i have insert some link buttons like home, contact etc...

in the default page i want to change the linkbutton css class inside the user control....

i am always get nothing value....

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C# - Accessing HTML Control Inside The Page From Web User Control?

Oct 23, 2010

I have created a web user control I want to change the iframe' src value when the user click on the link but the problem is that I dont have access to iframe inside the page from web user control I think there is a way because my control is in the page they have some relation perhaps I like to find something like this :

[code]...

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Adding To Page Control Collection From Inside A User Control?

Feb 12, 2011

I have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs.

As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup. The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."

I thought I had found a solution by using...

ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False)

... which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."

How are you supposed to add controls to the pages control collection from inside a user control?

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Web Forms :: How To Find Textbox Control Inside DetailsView Control Using Javascript

Mar 23, 2010

how to find Textbox Control inside DetailsView Control Using Javascript, I tried below but gives an error OBject reference not found

document.getElementById('<%=DetailsView1.FindControl("TextBox1").ClientID%>');

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Web Forms :: How To Find Control For A GridView Inside Panel Control

Apr 23, 2010

I am developing a asp database that is linked with SQL Database. When I am tryind to Find Control (GridView2) inside of another control (Panel2) that sits in Item Template for DetailsView, I got an error message:

Object reference not set to an instance of an object.
<asp:DetailsView ID="DetailsView1" HeaderText="Details" HeaderStyle-CssClass="labelheadRight" runat="server" AutoGenerateRows="False" DataKeyNames="pk_BackupDriveSerial"
DataSourceID="SqlDataSource1" GridLines="None"
CssClass="Detailsview" AllowPaging="True"
OnDataBinding="DetailsView1_OnDataBind"
OnItemInserted="DetailsView1_OnInsert"
OnItemDeleted="DetailsView1_OnDelete"
>
<Fields>
<asp:BoundField DataField="pk_BackupDriveSerial" ControlStyle-CssClass="dropdownsize"
HeaderText="Serial No" ReadOnly="True"
SortExpression="pk_BackupDriveSerial" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveMake" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveModel" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="Type" SortExpression="fkid_BackupDriveTypes" ControlStyle-CssClass="dropdownsize"
Visible="False">
<EditItemTemplate>
<asp:Label ID="Label6" runat="server" Text='<%# Bind("BackupDriveMake") %>' Width="145px"></asp:Label>
<br />
<asp:TextBox CssClass="dropdownsize" AutoPostBack="true" ID="DropDownList5" runat="server" Text='<%# Bind("BackupDriveModel") %>' ></asp:TextBox>
<br />
<asp:Panel ID="Panel2" runat="server" CssClass="dropdownpanel" >
<asp:GridView CssClass="dropdowngrid" ID="GridView2" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataKeyNames="pkid_BackupDriveTypes" SelectedValue='<%# Bind("fkid_BackupDriveTypes") %>'
DataSourceID="SqlDataSource3" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView2_OnChange">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:BoundField DataField="pkid_BackupDriveTypes"
HeaderText="pkid_BackupDriveTypes" InsertVisible="False" ReadOnly="True"
SortExpression="pkid_BackupDriveTypes" Visible="False" />
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make"
SortExpression="Make" />
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model"
SortExpression="Model" />
<asp:CommandField ShowSelectButton="True" />
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</asp:Panel>
<asp:DropDownExtender ID="DropDownExtender2" runat="server" DropDownControlID="Panel2" TargetControlID="DropDownList5">
</asp:DropDownExtender>
</EditItemTemplate>

[Code]....

I also tried

[Code]....

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Security :: How To Find Control Inside Login View Control

Nov 17, 2010

may i know how to find control inside Login View Control

i m usng following way

HyperLink lnktest = (HyperLink)loginView.FindControl("test");

but its giving me error that lnktest is null i.e object reference is not set to instance of object

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Data Controls :: How To Find Control Inside ListView Control

Dec 20, 2013

I have a listview where inside Iitemtemplate one button and one label is placed.

I want to access the value of label on the click event of button.

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Web Forms :: Accessing Public Property Inside User Control In Master Page From Content Page

Nov 9, 2010

I have user control in the master page. user control code behind page having public property called SetValue.

Now I want to set the value from content page .

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Web Forms :: Nest / Include A User Control Inside A User Control?

Apr 16, 2010

All I would like to be able to do is include one user control within another! Is this possible? I have spent the last hour searching the internet and it seems that I can't find a single thing.

In classic ASP it would be something like:
<!--#include file="EditProject.ascx"-->

I tried this but no luck!

Parser Error Message:

There can be only one 'control' directive.

Source Error:

[Code]....

Line 1: <%@ Control Language="VB" AutoEventWireup="false" CodeFile="EditProject.ascx.vb"Line 2: Inherits="Controls_WebUserControl" %>Line 3: <form runat="server">

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Find User Control's Id In Aspx Page?

Jan 28, 2011

I have an aspx web application in which 1 aspx page and 1 web user controls exist. I added 4 instances of the user control in aspx page. There is a remove button in user control which is used to remove the control from the aspx page. If I click on remove button of the user control, how can I find that which user control's remove button is clicked from the aspx page.

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Using C# FindControl To Find User Control In The Master Page

Mar 31, 2010

So all I want to do is simply find a user control I load based on a drop down selection. I have the user control added but now I'm trying to find the control so I can access a couple properties off of it and I can't find the control for the life of me. I'm actually doing all of this in the master page and there is no code in the default.aspx page itself.

MasterPage.aspx

[Code]....

MasterPage.cs

protected void goToSelectedPage(object sender, System.EventArgs e)
{
temp1 ct = this.Page.Master.LoadControl("temp1.ascx") as temp1;
ct.ID = "TestMe";
this.UpdatePanel1.ContentTemplateContainer.Controls.Add(ct);
}
//This is where I CANNOT SEEM TO FIND THE CONTROL ////////////////////////////////////////
protected void lnkSave_Click(object sender, System.EventArgs e)
{
UpdatePanel teest = this.FindControl("UpdatePanel1") as UpdatePanel;
Control test2 = teest.ContentTemplateContainer.FindControl("ctl09") as Control;
temp1 test3 = test2.FindControl("TestMe") as temp1;
string maybe = test3.Col1TopTitle;
}

Here I don't understand what it's telling me. for "par" I get "ctl09" and I have no idea how I am supposed to find this control. temp1.ascx.cs

protected void Page_Load(object sender, EventArgs e)
{
string ppp = this.ID;
string par = this.Parent.ID;
}

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How To Access A User Control's Parent Form's Controls Inside The User Control's Code Behind

Jun 11, 2010

I have to access the parent form's controls inside an event handler method on my user control's code behind.

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Find Control Inside The DataList Control?

Jan 7, 2011

how i can find a DataList which is inside the DataList control? Its giving the Error Object not set to an Instance. i am finding the control this way :

DataList dl =((DataList) (DataList1.FindControl("DataList2")));

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Custom Server Controls :: Unable To Use A Web User Control Inside Another Web User Control

Mar 10, 2011

I have a web user control that represents a simple message box. It is used to display simple messages like "Item has been deleted", or "The item was saved successfully".

On the other hand, I have another web user control that represents the item in the form of an editable form (I made this a user control because this is used in two different pages). I want to embed an instance of the message box user control inside the editable form. I am writing this right after the @Control directive:

[Code]....

Instead of using @Register directives, I register the user controls in web.config and so far this has worked just fine.

With the above markup, the project compiles, but whenever I try to navigate to a page that contains this construct, I get an HttpParseException exception. Furthermore, Visual Studio states that the tack w7rc9:MessageBox doesn't represent a known control.

What am I doing wrong?

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Web Forms :: Access A Control Inside User Control?

Mar 1, 2010

i have a Wizard control with 3 steps, in step 2 i have a formview, inside formview1 a have a label and a button.

When i click the button i would like the label to over wright the text of the label.

how can i access this label.

i tryed this with no success.

[Code]....

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Web Forms :: User Control C# - Open User Control Page When Click A Button On Parent Page

Mar 22, 2011

i would like to ask about how can i open user control page when i click a button on parent page, also, can i call parent's method from user control page and then refresh parent page?

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Have A Dropdownlist In Inside A Formview And Jquery Cant Find The Control Im Guessing Because Its Inside A Form?

Jun 14, 2010

Hello all i have this little issue getting this to work, i have a dropdownlist in asp.net inside a formview and jquery cant find the control im guessing because its inside a form, this is what i got and it works on another page without a formviewi get this errorName 'Country' is not declared

[Code]....

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JQuery UI Dialog On .NET Page (inside User Control)

May 25, 2010

I have a really odd behavior here: I created a little popup dialog in jQuery UI, and in my test HTML page, it works flawlessly. When I click on the button, the popup comes up, covers the background, and remains on screen until I click on one of the two buttons (OK or Cancel) provided.

So now I wanted to add this into my ASP.NET 3.5 app. I wanted to add it to a GridView inside a user controls (ASCX), which is on a page (ASPX) contained inside a master page.The jQuery 1.4.2 and jQuery UI 1.8.1 scripts are referenced on the master page:

<body>
<form id="XXXXXX" runat="server">
<Ajax:ScriptManager ID="masterScriptManager" runat="server" ScriptMode="Auto"> [code].....

Update: OK, one problem is solved - it appears that for whatever reason, the default MS Ajax stuff is adding some kind of an "observer" to my popup dialog and closes it right away after it shows up

So I changed the OnClientClick="showDialog();" to OnClientClick="showDialog(); return false;" and how that doesn't happen anymore - the dialog box pops up and stays there until I click on either of the two buttons (OK and Cancel).

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Web Forms :: Accessing A Public Property Of A Nested User Control In A Master Page From A Pages' User Control?

Sep 10, 2010

I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?

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Web Forms :: Can't Find FileUpload Control Inside ListView

Jan 25, 2011

I have a Listview that houses a FileUpload control. However, after using findcontrol the next line of code tries to convert the filename into a string and produces the familar error object reference not found.

Note: I have used identical code in a formview and it works fine.

Here's my relevent codebehind:

protected void AccessDataSource1_Inserting(object sender, SqlDataSourceCommandEventArgs e)
{
FileUpload FileUpload1 = (FileUpload)ListView1.FindControl("FileUpload1");
string Fupload = FileUpload1.FileName.ToString();
DateTime DateNow = DateTime.Now;
string DateNowSTR = DateNow.ToString();
string NewImageName = DateNowSTR + Fupload;
FileUpload1.SaveAs(Server.MapPath("~//images//" + NewImageName));
e.Command.Parameters["SponLogo"].Value = NewImageName;
}

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Web Forms :: Find Controls Inside Custom Control?

Jul 8, 2010

I have a master page and content page and placeholders in one of the placeholders in the content page i programmatically add a custom control (with loads of controls inside it.) Basically once all te controls are populated i want click a submit buttom on the form and get all the vales from the controls in the cutom control.

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