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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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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[Code]....

I have found a way to do it in the back end... I am just wondering how it works using these tags.

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i am using following syntax:

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I m New to asp.net,..

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using "this.Master.Controls",..

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May 7, 2015

I have hyperlink in page

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and I want change it's color in behind code so I wrote:

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but below error happen:

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error: 

Line 13:
Line 14: (this.Master.FindControl("ADMenuMessage") as HtmlGenericControl).Style["background-image"] = Page.ResolveUrl("~/Image/ADactivmenu.png");
Line 15: (this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";
Line 16: }
Line 17: }

how I can change hyperlink textcolor in behind code?

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[Code]...

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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)
{
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ct.ID = "TestMe";
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string maybe = test3.Col1TopTitle;
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protected void Page_Load(object sender, EventArgs e)
{
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string par = this.Parent.ID;
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<asp:BoundField DataField="BackupDriveMake" HeaderText="Make" ControlStyle-CssClass="dropdownsize"
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<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
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SortExpression="BackupDriveModel" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
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<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
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</asp:DropDownExtender>
</EditItemTemplate>

[Code]....

I also tried

[Code]....

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[code]....

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[Code]....

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[CODE]....

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[code]....

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