Web Forms :: Specify Explicit ID To Usercontrol?
May 18, 2010
User controls when rendered generates a dynamic ID for themselves. It makes sense also, as a page might have more than one of such user control and if dynamic id is not generated, there would be an ID conflict. But I am working on a page (legacy page yopu can say :D ) where I really need to specify a specific ID to usercontrol to make existing javascripts work. Is there a way to achieve this? OR if above is not doable (though I prefer it), below I have a dropdown in aspx like
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Dec 2, 2010
I had "Invalid viewstate" error in my application; I found out it's caused by worker process recycling, so I generated a <machinekey> section with explicit validationkey. refer to this link,[URL] My quesitons are 1. I have the application installed on dev, qa, stg and prd servers. Should I use the machinekey with the same(or different) validationkey for all the servers? I think it shouldn't be matter because the servers are independent from each other.
2. Where should I put the <machinekey> section, machine.config or individual application level's web.config? There are multiple applications on the server.
If I put it at the application level, does that mean other applications still may have the same "Invalid viewstate" error?
If I put it at the application level, should I add the <machinekey> section for all the other applications using the same validationkey?
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Mar 3, 2011
I have error:
Cannot insert explicit value for identity column in table 'UserDetails' when IDENTITY_INSERT is set to OFF.
I'm trying to insert a record through a BLL (Business Logic Layer) class with an 'Insert' button attached to the FooterTemplate of a GridView2. My code:
[Code]....
[Code]....
BLL layer code:
[Code]....
The field 'idUser' is autoincremented. When I use SqlDataSource with a DetailsView, add option it adds a record and autoincrements the 'isUser'.
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Jul 17, 2010
This is page load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{ [code]...
But in my ascx.cs when IButton1_Click is trigered My name is null
private string _sname;
protected void Page_Load(object sender, EventArgs e)
{ [code]...
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Apr 6, 2010
im creating site with usercontrols. I have repeater, inside it is another repeater with usercontrol. My problem is passing BindedValue to usercontrol.Bindings works fine and binds the value i need but it cannot pass the value to usercontrol. When i type it manually it works, when i bind it, it passes null (!).I've tried get,set, functions (ondatabound, onload, oninit), accessing control from code with no luck. Ive read and tried to do all the google solutions but with no luck. (even with creating usercontrol inheritance)
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Sep 27, 2010
There are 2 UserControls UC1 and UC2, and there is one more class C. I want to share the same instance of c in both UserControls. I know that this can be possible with properties in both UC's and by registering UC2 in UC1 or vice versa. But I want the solution to be loosely coupled. Any best possible way without touching the Actual Page (which hosts UC's)? So i need some best possible way between UCs transfering C.
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Dec 27, 2010
I've build a query, but the where statement is doing strange things. First my query:
select * from
(
SELECT 1 as Tag, null as Parent, row_number() OVER (ORDER BY tblOccasion.ID DESC) AS [tblOccasion!1!rownum], FROM tblOccasionwhere tblOccasion.UserID = @UserName and ((tblOccasion.MerkDesc like '%' + @search + '%')or(tblOccasion.UitvoeringDesc like '%' + @search + '%')or(tblOccasion.UitvoeringDesc like '%' + @search + '%'))
) AS A where a.[tblOccasion!1!rownum] BETWEEN (@startRowIndex) AND (@startRowIndex+@pageSize)
order by a.[tblOccasion!1!MerkDesc!Element],a.[tblOccasion!1!TypeDesc!Element],a.[tblOccasion!1!UitvoeringDesc!Element]
FOR XML EXPLICIT;
But the result should be ordered by Merkdesc, then TypeDesc, and then as last the uitvoeringDesc.
So for testing i only used the MerkDesc. The strange thing is that i get the result:
BMW
BMW
BMW
Opel
Volvo
But this was page 1, on page 2 (paging) you got BMW again... so he takes the first 5 rows ore something and then the order. But i like that he first orders it by MerkDesc and then picks the first 5. How can i change that, i can't add a Order by in the inline sql statement i get this error: Msg 1033, Level 15, State 1, Procedure MijnAdvertenties, Line 47 De ORDER BY-component is ongeldig in weergaven, in line functies, afgeleide tabellen en algemene tabelexpressies, tenzij ook TOP of FOR XML is opgegeven.
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Feb 23, 2011
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Now,
1. If In transaction scope if 1st Transaction is commited, buting 2nd one exception occurs and it is rolled back
2. Any other exception occurs, after 1st transaction is completed/commited
Here, explicit transactions are used. In both cases does all transactions in the scope are revert back? What are the possiblities here?
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Aug 12, 2010
I have 2 usercontrol in my .aspx page.
usercontorl1:
<asp:textbox id="txt" runat="server"></asp:textbox>
<asp:button id="btn" runat="server" text="send" />
usercontrol2:
Here I have gridview control with checkbox for selection of one or two records. Have one button and when clicking this , i need to get the selected records values and assign this values to the textbox which is in usercontrol1.
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Jun 16, 2010
Following the MVC1 vers of Nerddinner, but using 2010 and MVC2. Never seen this error. Looked in controller, model, view. Where does MVC pass the identity value, and how to stop it? I have never had to set IDENTITY_INSERT in any app before.
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Jan 24, 2010
i wold like to have a requiredfieldvalidator used with explicit localisation. my new code looks like this:
[Code]....
and is showing nothing beside of the image 'fehler.gif'. previously my code was like this and it worked like a charme:
[Code]....
how would like the code correctly?
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Sep 19, 2010
I have explicitly added __doPostBack() on Button onclientClick event.
<asp:Button ID="Button1" runat="server" Text="Button"
OnClientClick="__doPostBack('Button1','')"/>
When I am clicking the button the Page_Load is calling twice. But if I am adding below code inside page load ,page load is calling only once on button click.
Button1.Attributes.Add("onClientClick", "__doPostBack('Button1','')");
Again if i add with return false it is giving me it calling only once page load on click
<asp:Button ID="Button1" runat="server" Text="Button"
OnClientClick="__doPostBack('Button1','');return false;"/>
and return true is giving me again twice page load ,but adding return true or false in attribute.add code is giving the same result ,only one page load call.
Button1.Attributes.Add("onClientClick", "__doPostBack('Button1','');return true;");
I am not able to understand what is going on exactly when I tried to add __doPostBack in different way.
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Jul 19, 2010
I am searching for the advantages and disadvantages of the explicit interface implementation
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Nov 23, 2010
Is there a way to use the .NET ScriptManager in Explicit mode to inlcude the CDN JQuery file(s)? There is plenty of dicussion and information about including the indivudual AJAX framework files such as "MicrosoftAjaxCore.js", but since AJAX uses JQuery, I thought there might be a way to explicitly include the JQuery file(s) using the ScriptManager rather than hard coding an address to the MS CDN.
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Mar 2, 2010
when trying to translate the confirmation message to Norwegian i get the following error: Cannot have more than one binding on property 'OnClientClick' on 'System.Web.UI.WebControls.LinkButton'. Ensure that this property is not bound through an implicit expression, for example, using meta:resourcekey. i use Explicit localization in the following manner:
<asp:LinkButton ID="lnkMarkInvoiced" runat="server" OnClick="lnkMarkInvoiced_OnClick"
OnClientClick="<%# Resources: lnkMarkInvoicedResource.OnClientClick%>"
Visible="False" CssClass="stdtext" meta:resourcekey="lnkMarkInvoicedResource" ></asp:LinkButton>
here's the local resource file entry:
<data name="lnkMarkInvoicedResource.OnClientClick" xml:space="preserve">
<value>return confirm('Er du sikker?');</value>
if i remove the meta attribute i get the English text(default). how do i get the Norwegian text appearing without resorting to using the code behind? Update: removing the meta attribute prevents the exception from occurring but the original problem still exists. I can't get the Norwegian text to show. only the default English text shows.
Another Update: I know this question is getting old but i still can't get the Norwegian text to display.
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Jan 11, 2011
I have some problem with the Localization in ASP.net. I have generated the resources and binding the text property by an variable. In the source file.
<asp:Label ID="Label1" runat="server" Text='<%# Eval("name") %>' meta:resourcekey="Label1Resource1"></asp:Label>
code behind
protected string name;
protected void Page_Load(object sender, EventArgs e)
{
name = "Hello World";
}
The above things are simple but when I run the project. I got Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Cannot have more than one binding on property 'Text' on 'System.Web.UI.WebControls.Label'. Ensure that this property is not bound through an implicit expression, for example, using meta:resourcekey. Source Error: The above is just an example what I am facing in my project. how can I make localization and binding both at the same time.
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May 21, 2010
Right now I'm using the following code in my markup:
<asp:HiddenField ID="TheName" runat="server" Value=<%#Eval("SpeakerName")%> />
I would like to use:
<asp:HiddenField ID="TheName" runat="server" Value=<%#Eval(0)%> />
I would like to be able to call it by index instead of explicitly by "SpeakerName". Is there a way to do this in ASP.NET 4.0?
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Mar 8, 2011
I have an insert table with identity specification set. And I getthis error. I'm using a stored procedure to store it. How do I correct it. I'm also using a details view on my insert page.
Exception Details: System.Data.SqlClient.SqlException: Cannot insert explicit value for identity column in table 'Insert' when IDENTITY_INSERT is set to OFF.
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Aug 11, 2010
I am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
[URL]
There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
[URL]
The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
Here is my source code for the page:
[Code]....
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Jul 24, 2010
have a webpage that has a button and 2 userControl placed inside the placeHolder with visible set to false.When run and click on the button, userControl1 will set the visible to true. Now userControl1 is visible and there is also a button inside this userControl1 and when click, will set userControl2 visible to true and hide userControl1. The code below is the code behide for the webpage the do the above task.
[Code]....
Is there a way to do so that when click on the button inside userControl1, is does not show userControl2? I want to do this way is because, the button is for submitting data to database and then will pop up userControl2. When there is an error, only a msgBox will pop up and does not show userControl2.
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Jul 10, 2010
The wierd thing is this was working fine and then it just started throwing this error,
"Cannot insert explicit value for identity column in table 'Reports' when IDENTITY_INSERT is set to OFF."
Here is the code:
[Code]....
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Mar 17, 2011
I've a ASP.Net page (Default.aspx) which will load UserControl (ucontrol.ascx) dynamically into an UpdatePanel. By using UpdatePanel, we believe we're able to prevent the entire page to be posted-back.
My problem is, within the UserControl, we have some form controls, such as inputs and buttons; after the UserControl is loaded, clicking on any button inside the UserControl will cause the UpdatePanel to be blanked. During the investigation, I found that, breakpoints within the Button1_Click() in the code-behind for the UserControl is never reached. Please reference to the code below, this references to [REFERENCE]1.
[code]....
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Jan 28, 2011
I have a page with an UpdatePanel with a UserControl in it. That UserControl contains a GridView with a nested UserControl that seems to disappear when the parent UserControl is rebound. I cannot for the life of me figure out why the child UserControl disappears. The code works beautifully on the first load, but any partial postback causes the "Pick" UserControl to disappear.
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Jan 31, 2011
I have MainLayout.master that has UC_Menu.ascx on it.
I have a page named Customer.aspx that uses MainLayout.master. Customer.aspx also contains a UserControl named UC_Details.ascx.
How can I have UC_Menu.ascx call a function that is in UC_Details.ascx with this scenario?
I've seen a few similar examples, but none that match this type of layout.
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Dec 8, 2010
I have a UserControl, which contains another UserControl with Button. I want to add an event to that button in first UserControl (parent). I tried to do:
void Page_Init()
{
var btn = ChildControl.FindControl("SearchButton") as Button;
btn.Click += new EventHandler(this.SearchButton_Click);
}
but btn is null. How can I do that ?
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