MVC :: Dynamically Assign CSS At Runtime

Jan 20, 2011

I am developing an application using ASP.Net MVC 2. I have different modules and every module have different styles. My design goal is to use single master page and assign CSS at runtime based on the module selected by the user.

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Web Forms :: How To Use AddHandler To Dynamically Assign Events To Dynamically Created Buttons

Feb 14, 2011

I have a website that sales associates access to view account information with clients. S.A's can only view information for accounts that they are tied to. Some clients have more than one account, S.A's can be tied to more than one account, but not all accounts of one client need to be tied to one S.A.

On the account info pages, I have account numbers (dynamically displayed labels) displayed of other accounts that the account client is associated with, which the S.A's can see. I'm modding this so that if the S.A has viewing permissions of any of the other accounts on that list of accounts, that instead of a label being displayed, a button directing them to that account page will display instead. In order for this to work, I have to attach a security function to the button, otherwise the page will blow out on the S.A's.

So I'm running a piece that is displaying a button instead of a label, which is working fine. My problem is when I try to attach the security event to the dynamically displayed buttons. It seems that the page just posts back and doesn't execute my code at all.

On my Page_Load, I'm running this after the buttons and labels are displayed:

For x = 0 to tblAccountList.Rows.Count - 1
'use a try to target the button, use catch to handle if it's instead a label, only one cell per row.
Try
Dim accountLink as Button = tblAccountList.Rows(x).Controls(0)
Addhandler accountLink.Click, AddressOf Me.PermissionViewCheck
Catch ex as InvalidCastException
Continue For
End Try
Next

I don't have any code checking for postbacks or anything like that, but the "PermissionViewCheck" event never fires and just reposts the page.

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Web Forms :: Assign Value To Dynamic Textboxes At Runtime

Jul 24, 2010

I am generating dynamic textboxes with the ids as follows table row 1:

no1,name1,addressline11,addressline21,city,pin,communicationAddress1(here the row count I am appending at last to the control id's)table row 2: no2,name2,addressline12,addressline22,city,pin,communicationaddress2
table row 3: no3,name3,addressline13,addressline23,city,pin,communicationaddress3 and so on....

A new will be created when user hits enter key in the last textbox i.e., communicationaddress.For validations I have used java script. Now my requirement is when user types the address line the content of the textbox should be copied to communication address.

communication address = addressline1+addressline2+city+pin

so in theabove four textboxes when the user hits the keys the matter appending to the communication address with ',' seperated. I acheived this through key press event in java script..................

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Assign Html Label Text At Runtime

Aug 25, 2010

i want to send one html page with email. the contents of label in it will get change.can any one tell me,how to assign text to label in vb.net code at runtime.

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Web Forms :: Assign Properties For Button Control At Runtime?

Dec 5, 2010

I have a button in a details view that I want to change the properties of at run time. When the user clicks the edit button the details view goes into edit mode. I also want the edit button to turn into an update(or save) button so the use can click it to persist the changes done in edit mode. I've had to create a new instance of the button which I can do. I've done that with the cast below, I assume this is a good way to do this. I'm now having difficulty assigning the properties. I tried this but get a "Object Reference not set to an instance of an object" error. I thought I was working with an instance of the object in the code below, but the compiler doesn't agree. How do I set the text, and other properties for my button instance?

[Code]....

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Forms Data Controls :: Cannot Assign Values To Checked Property Of Checkbox At Runtime

Apr 22, 2010

I have a ASP.Net page that has a gridview control. This gridView control has a checkbox controls. I would like to assign a boolean value from a database field to the Checked property- Checked='<%# Bind("RESULTS") %>'.

When page loads,I get error - Specified cast is invalid!

The code is as follows...

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="dsResults"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" OnRowUpdated="GridView1_RowUpdated">
<Columns>
<asp:TemplateField HeaderText="COMPLIANT" SortExpression="RESULTS">
<EditItemTemplate>
<asp:CheckBox ID="CheckBox2" runat="server" Checked='<%# Bind("RESULTS") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Bind("RESULTS") %>'
Enabled="False" />
</ItemTemplate>
</asp:TemplateField>

Note: If a constant value is passed at design time it works fine. But i want to assign the value at runtime using Bind.

Environment details: VS 2008, ASP.NET 2.0 and .Net Framework 3.0 & C# language.

I tried returning values like 0s and 1s, Ys and Ns and True and False from a database field. But i still get the above mentioned error.

I tried retreving the value in OnRowDataBound event using Eval, since Bind is not available in code behind. But it would make the field readonly and i cannot edit and update the Results field.

Even though there is a value returned by the query why does the Checkbox does not assign the value using <%# Bind("Results") %> to Checked property instead throws error - Specified cast is invalid.

how i can edit and update Checkbox.

where did the Bind method of ASP.Net 1.x is moved? How can i use Bind in code behind of ASP.Net 2.0?When i type DataBinder the intellisense shows Eval and other stuff but i don't see Bind that would solve the problem of two- way binding.

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How To Dynamically Assign Control ID's

May 10, 2010

I want to do something like the following in an asp.net web form but get a Invalid Token error message:

<ul>
<%foreach (var item in Items) {%>
<li>
<asp:TextBox ID="<%= item.Id %>" runat="server" />
</li>
<%} %>
</ul>

What alternative methods are there to achieve the desired result?

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C# - How To Dynamically Assign A Master Page

Sep 15, 2010

Is it possible to assign a Master Page dynamically?

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MVC :: Dynamically Assign Values For A List?

Nov 23, 2010

after the user login , i need to assign this use name as a global varliable, and then i want to select from a table in the sql server that have select first_name,last_name from dependincies where user id = global_value and then to add the first name and last name , to a list will should have different values according to the global varible values. how i can do this for my mvc project.

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C# - Dynamically Collection Property Value Assign?

Nov 10, 2010

foreach (DataGridViewRow item in dataGridView1.Rows)
{
if (Convert.ToBoolean( item.Cells[0].Value) == true)
{
foreach (DataGridViewColumn col in dataGridView1.Columns)
{
**class oclass=new class();
oclass.property = item.Cells[col.Name].Value.ToString();
Collection.add(oclass);**
}
}
}

In the above syntax,i want to fill class property dynamically.I also add my class in collection.Is it possible in C#,fill class property dynamically?My grid contain more than one column.My grid's column name are same as class property name.I want to do the bellow thing:

foreach (DataGridViewColumn col in dataGridView1.Columns)
{
**class oclass=new class();
oclass.col.Name= item.Cells[col.Name].Value.ToString();
Collection.add(oclass);**
}

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How To Dynamically Assign A BackColor To A GridView Row

Nov 29, 2010

I'm working on an ASP.Net page containing a GridView, which is populated with customer orders returned by a stored procedure. What I'd like to do is dynamically change the backcolor of the GridView rows to indicate priority.

The stored procedure returns an integer indicating the records priority, I think I just need to translate the integer to a color, then make the GridView row display it.

The "making the GridView row display it" part is the one that's giving me a hard time.

What's the best way to do this?

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Dynamically Assign Click Event For Anchor Tag In C#?

Feb 26, 2011

i was working on an application where i was having large string and need to be divided in chuck of string, and should be kept in a div, just the purpose was giving pagination to the large string, so i wrote code to split the whole string into multiple chunks and added the chunk of string in a div created at runtime, and also disabled all the other div's except the first, and also given page numbers in the footer for changing pages, but now my issue is i am using anchor tags using HTMLAnchor from code behind, now whenever user clicks on any page that div should be set to display and other all should get hide, i am not getting how should i do this from code behind, i have done everything from code behind, from creating div to hiding div...

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C# - Taking Variables Out Of The Web.config To Assign Dynamically?

Nov 22, 2010

I'm using sql dependent caching in my ASP.NET application, and to achieve this I have the following entry in the web.config:

<connectionStrings>
<add name="DatabaseName" connectionString="Data Source=.Dev;Initial Catalog=DatabaseName;Integrated Security=True" />

[code]...

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How To Assign Stylesheet To A Dynamically Seleted Master Page

Feb 19, 2010

How to assign style sheet to a dynamically seleted master page. like my master page will be selected dynamically as per used type and at that time I want to add a style sheet to it.

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AJAX :: How To Dynamically Assign The Visibility Of The TabPanels In Page

Apr 1, 2010

I'm trying to dynamically assign the visibility of the TabPanels in my page. The code below sort of works, but not correctly (refer to image).

It is able to hide the actual tab, but the header still appears (though unclickable). I need for the header and the tab to be hidden.

I tried to use "tb = (AjaxControlToolkit.TabPanel)this.page.findControl("TabPanel1").Visible = true"

And get this error Object reference not set to an instance of an object.

I can be pointed to the right direction.

[Code]....

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Dynamically Load User Control And Assign Property?

Jan 3, 2011

I would like to dynamically load a user control and assign one of its public properties OnLoad...

I'm doing the following from a parent user control to dynamically load the child user control...

UserControl uc = (UserControl)Page.LoadControl("~/Controls/MyUserControl.ascx");

What else do I need to do to pass a value so its public property is set OnLoad?

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Access :: Assign Database To AccessDataSource Control Dynamically?

Nov 5, 2010

How do I assign database to AccessDataSource control dynamically.

If I load aspx page by mypage.aspx?DB=100 then I want to use 100.mdb as data base

If I load aspx page by mypage.aspx?DB=200 then I want to use 200.mdb as data base

Both databases are identical except for the fact that data is different.

Here's default code - Need to replace Bold Code with equivalent of DataFile = response.querystring("DB") + ".mdb"

<asp:AccessDataSource ID="AccessDataSource1" runat="server"
DataFile="c: rims2k&#65533;00001000.mdb"
SelectCommand="SELECT * FROM [EquipmentUsage]"></asp:AccessDataSource>

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Web Forms :: Dynamically Create XML String And Assign Its Value To Label?

Apr 19, 2013

in my asp.net+vb+access web i am having a page in which i am counting and displying the numbers in text boxes/labels. it works fine.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim connectString As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:webWing.mdb"
Dim con As OleDbConnection = New OleDbConnection(connectString)

[Code].....

i want to amend the value with the value of the text boxes that i had tried manually it works fine. 

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How To Dynamically Create An HTML Page That Can Assign To The Body Of An Email

May 18, 2010

I would like to send an Html email. The body for this email I would like to create completely dynamically. How do I create an html page completely from scratch so that I then have a page that I can add controls to? Do I create an instance of the System.Web.UI.Page class, add my controls to it and then render it as a string that I can assign to the message body?

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How To Dynamically Create A Page / Select A Skin And Assign Modules To It

Aug 12, 2010

In DNN 5, I need to:

Dynamically create a page (programmatically) select a skin assign modules to the page

How do I do this?

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Forms Data Controls :: Dynamically Assign Value To DropDownList In GridView

Sep 16, 2010

I got GridView with 2 columns both are Template field with drop down list. What I need to do is someting like when user select course 3/3A/2A/2B , the type column will auto select pratical option dynamically. When select RTT /FTT/BTT , the type column will select Theory option. Can someone tell me how to work on this thing.

<asp:GridView
ID="GridView1"
runat="server"
AutoGenerateColumns="False">
<Columns>
<asp:TemplateField
HeaderText="Course">
<ItemTemplate>
<asp:DropDownList
ID="DropDownList1"
runat="server"
AutoPostBack="True">
<asp:ListItem>2A</asp:ListItem>
<asp:ListItem>2B</asp:ListItem>
<asp:ListItem
Value="3">3</asp:ListItem>
<asp:ListItem>3A</asp:ListItem>
<asp:ListItem>BTT</asp:ListItem>
<asp:ListItem>RTT</asp:ListItem>
<asp:ListItem>FTT</asp:ListItem>
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField
HeaderText="Type">
<ItemTemplate>
<asp:DropDownList
ID="DropDownList2"
runat="server">
<asp:ListItem></asp:ListItem>
<asp:ListItem>Practical</asp:ListItem>
<asp:ListItem>Theory</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

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How To Dynamically Assign The ImageUrl Property Of An Image Using Data Binding

Nov 11, 2010

I've got a SQL Server database with a table in it, which lists the file names of images. It's my intention to assign the ImageUrl of an Image control on the page, from the data in the table. I've placed a SQLDataSource control on the page, and then tried putting a FormView control there, and an Image control within that. But I don't see how I can assign the value to the ImageUrl property via data binding.

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Web Forms :: Dynamically Assign Table In HTML Page In Application

Dec 23, 2015

I need to show the order summary at the end of the transaction in my application.Here i need to design a htm page in my application and i need to dynamically assign the table in the html page in my application.

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C# - Assign Delegate Event Handler From Dynamically Added Child Control

Apr 14, 2010

I have a control that handles commenting. In this control, I have set a delegate event handler for sending an email.

I then have various types of controls, e.g. blog, articles etc, each of which may or may not have the commenting control added (which is done dynamically with me not knowing the id's), i.e. the commenting control is added outside this control. Each of these controls handles it's emailing differently(hence the event).

What I'm trying to determine, is how to assign the event in the parent control. At the moment, I'm having to recursively search through all the controls on the page until I find the comment control, and set it that way. Example below explains:

COMMENTING CONTROL

public delegate void Commenting_OnSendEmail();
public partial class Commenting : UserControl
{
public Commenting_OnSendEmail OnComment_SendEmail();
private void Page_Load(object sender, EventArgs e)
{
if(OnComment_SendEmail != null)
{
OnComment_SendEmail();
}
}
}

PARENT CONTROL

public partial class Blog : UserControl
{
private void Page_Load(object sender, EventArgs e)
{
Commenting comControl = (Commenting)this.FindControl<Commenting>(this);
if(comControl != null)
{
comCtrol.OnComment_SendEmail += new Commenting_OnSendMail(Blog_Comment_OnSendEmail);
}
}
}

EDIT:

The reason I ask is that if I search from this.Page as the initial control, I am worried about time taken to search down the control tree to find it. Each different type of page would be different in how many control it would have. On some testing, it returns back quite quickly the result.

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Forms Data Controls :: Dynamically Assign Sqldatasource Via Radiobutton Selection?

Feb 9, 2011

What I am trying to achieve here is as follows. I have a mailing system that works great, I have users from a datasource being looped through and having that message sent to the users that are in that datasource. But my question now is, because I will have multiple queries/datasources (for different users in the mailing system for different purposes), is there a way I can bind a datasource to a radio button and then have that selected radio button be used for the mailing datasource?

[Code]....

As you can see with this line Dim dt As DataTable = DirectCast((DatasourceOptInMembers.Select(DataSourceSelectArguments.Empty)), DataView).Table I want to have the DatasourceOptInMembers dynamic vs a statically assigned datasource. So baically if another options is selected it will use that datasource instead.It appears simple, although unsure of how to construct this.

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