Web Forms :: Programmatically Add Control Into The TemplateOne?
Jul 5, 2010I have a custom templated control as follow:
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How do I programmatically add control into the templateOne?
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Web Forms :: Can Add Validator Control Programmatically
Feb 3, 2011I am adding validator controls to a page on runtime. When I do this it seems to work except for one thing: the page doesn't get validated (the Validate() method is not invoked) - neither on the client nor on the server. However when I can Validate() myself, the validators do their work and generate the required errors. So it looks like the simple fact of adding a validator programmatically causes the page validation to not take place. My page does have validators in the aspx file - they work fine when I don't add any programatically, but as soon as I do add one programatically, the Validate() method is not invoked.
The way I add the validators is by creating an instance, giving values to all relevant properties, and then adding to the page control collection. I tried this in the PageLoad, and prior page-cycle events. The same result occured. I also tried with or without having a ValidationGroup, and with or without having a ValidationSummary control on the page. The same result occured.
Web Forms :: Add Control To Page Programmatically?
Mar 3, 2010I have code to add a control to page in Init event. I hit error "The control collection cannot be changed during DataBind, Init, Load, PreRender and Unload phrase".
The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.
Web Forms :: Programmatically Populate A Menu Control?
Apr 1, 2010I've an asp menu on my site. I need to dynamically populate this from my database depending on a choice made by the user.
Basically, when entering the site the User chooses a product category and this selection determines the options in my menu. I'm totally lost as to how to populate my menu each time the user changes their category - I've only ever hardcoded in the values to a this menu type so I've no idea how to programmatically populate it.
From what I can gather, it seems that its best to populate the menu via XML - if this is so could someone post a sample of what this XML structure (or let me know ehere I can view this)
Web Forms :: Acessing Programmatically Added Control In Code-behind?
Jan 4, 2011I have a div runing on server in which i programmatically add images. On post back, id like to get some attributtes from those images, but they are nowhere to be found. What am i doing wrong?
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Web Forms :: Trying To Programmatically Add A User Control To An Aspx Page
Nov 30, 2010I'm trying to programmatically add a user control to an aspx page.
the problem is that any postback that happens on the page(even if i added the user control to an updatepanel) clears the user control from the page.
this happens also if the postback is generated from the user control itself.
Web Forms :: Programmatically Load And Unload Into A User Control?
Mar 4, 2011Is this possible and how?
I would like a single button that will fire a loading of a user control into a panel to simulate a wizard-type functionality.
Web Forms :: Get Data From A Table Control Which Has Been Generated Programmatically
Jan 21, 2011I am creating a Table Control programmatically and I want after user clicks a button to get the values.
The table has three columns, {Title(DropDownList), FName(TextBox), LName(TextBox)} and two rows.
I am getting the values for FName, LName without problem, but I am getting wrong value for Title, which is a DropDownList. It gives me for both Titles, the selected value of the second column.
More Clear
For the 1st row --> Mr, Foo, Bar
for 2nd row- -> Mrs, Foo, Bar
after user clicks the button I am getting
For 1st row --> Mrs, Foo, Bar
For 2nd row- -> Mrs, Foo1, Bar.
This is the method of table creation
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Web Forms :: How To Populate A List Control From SQL Table Programmatically
Nov 10, 2010I would like to use a C# foreach loop to access a column in all records in one of two tables that can only be determined at runtime. I have used the foreach command with arrays, but I don't know how to use it with a table in an SQL database. I was using a query command and Reader inside of a do-while loop that fails after all records had been read.
View 3 RepliesWeb Forms :: Wizard Control - Set The Value Of WizardStep.IndexOf() Programmatically?
Sep 1, 2010How can I set the value of WizardStep.IndexOf() programatically? eg.
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Web Forms :: Hide Label Control With Dynamic Id Programmatically?
Jun 24, 2010I have some labels on my web page and I need to hide some of them programmatically.my code
protected void panelLegent_Load(object sender, EventArgs e)
{
lbl_A.Style.Add("display","none"); // It's works
[code]...
Web Forms :: How To Programmatically Control Individual Menu Item Visibility
Nov 5, 2010I would like to programmatically hide/unhide Individual Menu items.
How is this best accomplished. I see that intellisense does not have a visibility attribute for Menu1.Items(1).
Forms Data Controls :: Programmatically Reference Control Within An ItemTemplate?
Feb 8, 2010I'm trying to programatically reference a FileUpload control which I have within an ItemTemplate. I get a 'Name FileUpload1 is not declared' error message. Code below:
Code is as follows:
[Code]....
[Code]....
Forms Data Controls :: Populating Chart Control From DataTable Programmatically?
Jul 15, 2010When trying to populate a Chart control in asp.net 4.0, I cannot seem to get it to show the data in the way I want to.
This is the table (DataTable) I want to DataBind to the chart control:
[code]....
I want to represent this table in a chart control. How can I do this and make my code dynamic?
Forms Data Controls :: Populating The Menu Control Programmatically Using An XML File?
Aug 10, 2010How to Populating the Menu Control programmatically Using an XML File,
View 5 RepliesForms Data Controls :: Programmatically Changing Control's Style Sheet?
Dec 13, 2010For reasons, I have an <a> tag in my master sheet rather than an ASP link. I want to access this html control from the server when a post back happens and change its style sheet. I have tried many a thing but as yet am still unsuccessful.
in short this is what i can't do but want to...
page.form.controls.item(0).sytle = "bob"
..but can't.
Forms Data Controls :: Programmatically Creating Chart Control And Adding It To Dynamically Generated Table?
May 21, 2010I am stuck in chart controls...Here is my prob... There is a ListBox containing some items...when user selects multiple items from the list box I want to generate a dynamic table with the number of columns same as that of the number items selected in the listbox. And for each selected item I want to show a seperate chart in the columns...Currently I want the same chart control for every selected item (i.e. a static hard coded chart that i will replace later by dynamic values)....I am using a method that draws a chart control using a sample dataset... I am calling it each time when a new column is created..Also the DrawChart method executes for the first column only and throws an index out of range exception! after the first execution...my code is not working...here
my code...
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Forms Data Controls :: Programmatically Access The Insert Button Click Event Of A Detailsview Control?
Feb 17, 2011I have a detailsview control which I use to enter data and save to the database. The control is connected to the db through a objectdatasource. When the insert is successful, I want to set some variables and redirect the page to a different one. The detailsview control has AutoGenerateInsertButton="True". I don't know how to access the insert button click event in the code behind,
View 1 RepliesC# - Change The ID Of A Control Programmatically?
Feb 28, 2011I've a control
<asp:Button ID="btnAjax" runat="server" Text="Ajaxified" OnClick="btnAjax_Click" />
Now from the code behind I want to change the ID of the button
btnAjax.ID = "newButtonID";
But it is now working. Is it possible at the first place?
EDIT
I've created the control in the HTML mark up and not through code.
Add Control Programmatically In Page_load
Dec 19, 2010I am trying to add controls on the page from the backend in the page_load stage. Here is my code:
foreach (FileInfo fi in dirInfo.GetFiles())
{
HyperLink hl = new HyperLink();
hl.ID = "Hyperlink" + i++;
hl.Text = fi.Name;
hl.NavigateUrl = "../downloading.aspx?file=" + fi.Name + "&user=" + userIdpar;
Page.Controls.Add(hl);
Page.Controls.Add(new LiteralControl("<br/>"));
}
The error which I am getting is on 'Page.Controls.Add(hl);' and here is the explanation: The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases. What can I do so I can fix this issue.
C# - Programmatically Databind A GridView Control
Sep 27, 2010I have a blank/unbound GridView control on my form and I am binding it in the code behind like this:
GridView1.DataSource = _dataSet
DataBind()
Running this code populates my GridView control with all the columns and data that _dataSet has. I want to display only some of the columns, change the column names, and rearrange some of these columns too (i want the last column from the actual sql database table to be displayed first in my GridView).
Programmatically Cancel Control Initialisation?
Jan 11, 2010Suppose I have a user control MyControl.ascx, and I put it in the Default.aspx like this:
<uc1:MyControl id="MyControl" runat="server">
Now in the code-behind of Default.aspx I do this:
[code]....
The problem is that even I do not render MyControl, it is still being initialised and goes through the entire ASCX life cycle (OnLoad, etc). Is there a way to prevent the control from being initialised at all?
Programmatically Adding A User Control In C#?
Jan 12, 2010I have a user control that needs to load a child control when a button is clicked. The trouble is that it has to request the control from another class.
So in the button click event, I call the function to get me my control, and add it to the page, like this:
UserControl ctrl = ExampleDataProvider.GetControl(some params...);
myDetailPane.Controls.Add(ctrl);
The GetControl method looks like:
public static UserControl GetControl(some params...)
{
ExampleDetailPane ctrl = new ExampleDetailPane();
ctrl.Value = "12";
ctrl.Comment = string.Empty;
return ctrl;
}
This isn't working due to the page's lifecycle - the Page_Load of the child control gets fired and its controls are null.
Programmatically Wrap A Control In A Span?
Jan 29, 2010I have programatically created a control. Now I want to wrap that in a <span></span> tag.
View 1 RepliesC# - How To Programmatically Set Property Of Control In Aspx File
May 27, 2010This may be a very dumb question but I can't seem to get it working. I use at many places the following syntax for dynamically binding a property of a control in aspx file to the resource entry, e.g.
<SomeFunnyControl Text="<%$ Resources : ResClass, ResEntry %>" />
I want to do a similar thing with a class containing some constants, something like
<SomeFunnyControl Text="<%= MyConstantsClass.MyStringConstant %>" />
But this doesn't seem to work, it simply sets the text to the exact expression without evaluating it. I am using ASP.NET 3.5 btw.
I have tried the databinding approach but I get an HttpParseException saying Databinding expressions are only supported on objects that have a DataBinding event.