Forms Data Controls :: Modified Find Control Fails On Another Machine?
Apr 13, 2010
The following utility works great on my machine but not on a partner's machine. The container and strChild values come through but the second line throws an error.
[Code]....
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Oct 6, 2010
To me this should be much easier, but I can't seem to retain the values that are put in the Insert template upon a validation failure or when the sql fails. This will prevent the user from having to retype everything agin in the event of a failure.
As you can see I am using the Sub Insert_Click and not using an insert through the wizard. so the fields are unbound textboxes on the form. There are 2 dropdowns that provide choices for the other fields.
I pasted in the code using the text only option becuase the format was getting messed up. I probably need more background on why the fields are blanking out.
[code]....
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Jun 9, 2012
I want use meta tag in my page that read keyword from database
I set this code in my product.aspx page
protected void Page_Load(object sender, EventArgs e) {
SqlCommand _cmd = new SqlCommand("select Keyword1 + ',' + Keyword2 + ',' +Keyword3 from House_info where BehCode=1115", _cn);
_cn.Open();
SqlDataReader _dr = _cmd.ExecuteReader();
while (_dr.Read())
[Code] ....
It worked correctly and show my keywords from database and show it in my product.aspx metatag
I have two other page
index.aspx and store.aspx in index.aspx i have 1button and 1 TextBox when user type their BEHCODE(columns name in users table) in TextBox it go to store.aspx page and show that users information on store.aspx
Now i want set meta tag in store.aspx page and i want fill store.aspx meta tag from my users table in data base
This is index.aspx
protected void ImageButton3_Click(object sender, ImageClickEventArgs e) {
string data = Server.UrlEncode(txtNumeric.Text);
SqlCommand _cmd = new SqlCommand("traidname", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cmd.Parameters.Add("@BehCode", data);
[Code] ....
Here when i run website this error occur
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
In this line
this.Page.Header.Controls.Add(htmlMeta);
I use this code too
<script type="text/javascript">
$("input[id$=btnButton]").live("click", function () {
return confirm("Do you want to submit?");
});
</script>
But it didn't worked this problem just happen here when i used meta tag code in other page it worked correctly . Why this happen?
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Jan 24, 2012
The code on one of my aspx pages is giving me this error:
I'm getting this on the code behind for export to excel on one of my pages.
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).It is referring to this line Me.GridView1.Parent.Controls.Add(frm)
I have this code in the aspx page. I am using two gridviews. I need to have this on the page any way I can fix the code so I can use that export to excel you created?
<% If(Session("PendingClaims"))%>then display gridview1<%Else%>
Then display gridview2<% End If %>
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Jan 23, 2011
problem with Stream.Write() where it works under a dev (Windows 7) environment but fails under a server environment (Windows 2008 R2 Enterprise)?
I'm basically working with some third party code which reads from a FileStream and writing to an Http request, nothing unusual and it's doing the following things:
Ensuring that Response.KeepAlive is false (was originally true but worked W7 and not W2K8 so tried false but it doesn't );
Ensuring that the Write includes the length of the bytes to write;
Ensuring that I Flush the stream afterwards;
The error that I encounter is the rather vague 'The request was aborted: The request was canceled.' with InnerException of 'Cannot close stream until all bytes are written.'. Now, my code works perfectly under Windows 7 so I still suspect that something is actively blocking this writing although I am not sure what, how and where.
One other possibility I wondered about was whether the encoding might be different under Windows Server 2008 R2 as opposed to Windows 7?
Here's a code snippet from the relevant method (a bit convoluted but, disclaimer, I didn't write it :-):
string boundary = string.Concat("-------------------------", DateTime.Now.Ticks.ToString("x", CultureInfo.InvariantCulture));
byte[] boundaryBytes = System.Text.Encoding.UTF8.GetBytes(string.Concat("
--", boundary, "
"));........
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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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Mar 8, 2011
I want to change the text of the user name text box which is inside a log in view on selected index chaged event of a drop down list.
this is my code:
[Code]....
but both ddl and tb are null
Anyone knows how can I find the controls in code behind?
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Mar 27, 2011
i saw few of solutions for this exception (like putting it in place holder, or replace the <% to <# ...etc) , but i don't get the idea about it, i mean what is the controls collection? and why it can't be modified if the added control contains code blocks?
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Aug 11, 2010
I recently put some code <% %> code blocks in my Master Page. Note I've read of the "fix" for either moving things out of <head> or using <%# %> but neither of them work well for my application.
Now the weird thing is that I only get this error on one page of mine. All the other pages seem to work fine, so what actually causes this error? There is nothing I can think of that is unique about this page. It uses the script manager as does other working pages and there is just nothing extraordinary about this page. It does have quite a few custom controls on it, so hunting down what is different in this page is more difficult than usual.
So what actually causes the Controls collection cannot be modified because the control contains code blocks exception?
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Dec 18, 2012
Error: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)
I have the following in my master file to load a dynamic seasonal background image:
HTML Code:
<style type="text/css">
body
{
background-image:url("<%=backgroundImage%>");
background-position: top center;
}
</style>
It works fine on most of my pages, but on one it throws the above error.
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Dec 30, 2010
i am populating a grid view from one table, if any changes made in the particular table the particular modified cell should be highlighted... how can i do this.. ?
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Jan 31, 2011
I've an anchor tag in listview itemtemplate, I'm trying to find that control in Listview Item databound event with the below snippet
[Code]....
but lnkEdit is always null.
I wonder why it is not able to find the control while I can see it in page view source.
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Jan 14, 2011
I have a Calendar control on a webform and add a GridView to one of the cells. I am trying to get a reference to the GridView on a button click event, but just can't figure out how..
Here is the code:
[Code]....
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Aug 22, 2010
Via RowDataBound, how to find a control in the header row?
This is what I have but not working!!!
[Code]....
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Dec 2, 2010
i have a gridview and i have made table in gridview and in table i have bound some controlsbut i am unable to find control. if i am not using table in gridview then i am not facing the problem but when i am using table in gridview then i am facing this problem please send me a solution of this problem.
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Mar 15, 2010
I have a gridview and each row have an textbox for quantity, I need quantity.text to add product in database, but in my page I have 2 or more quantity textbox. How do I know which one is the good one...to add.
[Code]....
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Aug 8, 2010
I am having asp.net web page.In that I am having GridView control. In that GridView I have template columns.There are total 8 columns in gridview.First column of the gridview is a checkbox. and in other columns of the gridview there are dropdownlists.what i want is that when i select a value in first column's dropdown and then check the checkbox then for all columns for that particluar row all the dropdowns in all columns for that selected row should contain the value of the first selected dropdownlist.
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May 7, 2015
I have web.confing file when adding tag page for set theme
After running project i have this error:
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
<pages theme="Theme" styleSheetTheme="Theme" clientIDMode="AutoID" />
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Apr 27, 2016
I am getting http exception in of the method of class file (search.aspx.vb) like "The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)",
I have tried placing Java script function in the body of Master page from header, whereas I just removed the Java script tag and its contents in search.aspx (as of its not required now). Still getting exception.
I also know that if we have something like this <%= in Java script function we need to replace with <%#. But I don’t have this kind of code in any function.
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Apr 7, 2010
Im using Nested DataList in My Application. But i m not able to find control Inside Child DataList. (I want to Find Label Control In ItemDataBound Of ChildDataList)
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Sep 20, 2010
I want to find control inside datalist, i am using this:
((Image)DataList1.Items[0].FindControl("Image1")).Visible=true;
//here got error:
Index was out of range. Must be non-negative and less than the size of the collection.
here is my aspx code:
<asp:DataList ID="DataList1" runat="server" DataKeyField="nsid">
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Feb 10, 2010
Im not able to find control in datalist.
Protected
Sub DataList1_ItemDataBound(ByVal sender
As Object,
ByVal e As System.Web.UI.WebControls.DataListItemEventArgs)
Handles DataList1.ItemDataBound
lblshippingoutside.Visible =
Dim lblshippingoutside
As Label = CType(e.Item.FindControl("lblshippingoutside"), Label)False
End Sub
Throws an exception .
Object reference not set to an instance of an object.
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Nov 9, 2010
I am trying to find my linkbutton control using RowDataBound using the below code
[Code]....
[Code]....
but it always comes back with null the lnkButton.
What is the issue here?
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Mar 21, 2010
Im binding an image to a repeater and giving the image id a unquie value based on the id from the database. The problem im having is trying to find the control within the repeater as i dont know the exact id of the control as its generated at runtime.
What im trying to do is count how many items are bound then after the first one assign a new css class to the rest.
How am i able to find the controls id on itemDataBound ?
The code is provide below:
[Code]...
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Mar 11, 2010
I have a simple user control that I have placed inside a repeater. I want to access it through the ItemDataBound event of the repeater. Here's my code so far:
[Code]....
Not so sure what to do about all of this. I have developed a simple calendar using an XML doc and a repeater. The parent repeater contains a child repeater that lists events based on the date. I have a User Control that has some unique capablities for control the date in a link button. I want the user to click on the User Control and be able to use the information to do something. Bottom line, I want to access the linkbutton inside the repeater.
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