Web Forms :: Cannot Find Validator.ControlToValidate On Page With Master Page
Mar 2, 2010
I'm using the following code to iterate through a list of validators on the page. For each validator, I want to set the background color for the control its responsible for validating. The problem I'm having is that FindControl method is always returning null. From searching the web, it appears the problem is that the page has a master page. Whether this is the issue or not, it's obvious that the FindControl method cannot find the ControlToValidate control.
Method used to iterate all validators on a page:
protected void ShowControlsToValidate(Page page)
{
if (page == null)
return;
[Code].....
Markup showing control and it validator:
[Code]....
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May 7, 2015
I have MasterPage.master and 3 page that use this masterpage
1-home.aspx
2-product.aspx
3-information.aspx
in masterpage I defive 3 DIV
<div id="Home" runat="server"></div> <div id="Product" runat="server">
</div> <div id="Information" runat="server"></div>
I want in Home.aspx it change <div id="Home"> Background's image so I wrote below code in home.aspx behind code:
Home.Style["background-image"]=Page.ResolveUrl("~/Images/Extra/H.jpg"); but this error happen: the name Home doesn't exist in the current context
I think it happen because I define div in masterpage not in home.aspx so if I want do it what should I do?
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May 7, 2015
I have hyperlink in page
<asp:HyperLink ID="HyperLink1" runat="server" class="lblMenuMessage" NavigateUrl="~/Admin/صندوق-پیام.aspx">صندوق پیام</asp:HyperLink>
and css
.lblMenuMessage
{
float:right;
text-align:right;
width:150px;
margin:0 12px 0 0;
color:white;
text-decoration:none;
}
and I want change it's color in behind code so I wrote:
(this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";
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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Dec 11, 2013
I looked at your example URL....I have ScriptManager in masterpage how call ScriptManager from masterpage in editorPage.aspx if (Script Manager 1.IsInAsyncPostBack)
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Jan 24, 2014
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example:
btnSecondPage_click
{
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Jul 26, 2010
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Nov 18, 2010
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Jun 22, 2010
I've searched a fair bit round and tried a number of potential solutions, suggested on their respective threads on various sites, to which none have worked for me.
My objective is to make sure the date entered, and to be stored, is not 'less than' (before) the present datei.e. Booking a reservation for a restaurant.
The first is:
"The ControlToValidate property of 'cvDate' cannot be blank..."
I've tried specifying it in page_load and .aspx source, the same has happened in both, in addition to ValueToCompare. I cant understand why it cant detect it?
C# (ControltoValidate):
Csharp Code:
[code]....
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Apr 1, 2010
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May 1, 2010
I m New to asp.net,..
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using "this.Master.Controls",..
Guide me there is some another way of finding the panel controls
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<asp:Content ID="Content3" ContentPlaceHolderID="head" runat="Server">
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Mar 29, 2010
Unable to find control inside the usercontrol in vb.net
code of master page
[Code]....
code of master page 2
[Code]....
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Jan 24, 2011
I have a control on a master page called "panel1". I would like to access it from my Javascript on the content page. I have tried var panel1 = document.getElementById('<%= panel1 %>'); It doesn't work since it is on the Master page.
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Sep 24, 2010
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Page page = new Page();
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{
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}
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<%@ MasterType TypeName="Main" %>
Then my master page called Main.master has:
<asp:Literal runat="server" ID="lblBasket" />[code].....
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Dec 21, 2010
I tried this much:-
protected void Page_PreInit(object sender, EventArgs e)
{
class1 obj = new class1();
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ContentPlaceHolder1. ????
}
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Mar 31, 2010
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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";
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{
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{
string ppp = this.ID;
string par = this.Parent.ID;
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[Code]....
Also, I added the following in Master Page Source Declaration:
[Code]....
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<asp:TextBox ID="TextBox1" runat="server" />
<asp:CustomValidator ID="CustomValidator1" runat="server"
ClientValidationFunction="ValidationFunction1"
ControlToValidate="TextBox1"
Display="Dynamic" />
And a validationFunction:
function ValidationFunction1(sender, args)
{
}
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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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Jan 8, 2011
I am using Master page and Content page combination.But how can i access <body> tag and it's event (onload, onunload) of Master page in .aspx page that is not a content page.
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I have a master page homeMaster.aspx and many content pages. However the situation is I have few .html pages. Now when a user clicks on a link the html page should get loaded.inside the master page. The problem is these are .html and not content page with .aspx.
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Sep 24, 2010
I am in the process of building a server control that contains a ConfirmButtonExtender. This is my code:
The Master Page:
[code]....
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Aug 2, 2010
I have a master page containing a tree and 3 dropdown lists. I am populating a context menu on right click of each node, and when clicked on any item of the context menu, it navigates to required pages.
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I can set the selected values for the dropdown lists by making some properties in master page.
But how do i maintain the selected node?
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Or is there any other way than setting the properties in master page?
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