Forms Data Controls :: Get Site Name In User Control?

Jan 9, 2011

I have a user control that I am trying to make a function to return the site name www.siteName.com for my page but every time I try and use Request.Url.AbsoluteUri;

I get an error:

System.NullReferenceException: Object reference not set to an instance of an object

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Security :: Transfer User From One Web Site Site To Another Web Site On A Different Server With User?

Jan 26, 2011

I have a requirement where I have to transfer a user from Web Site 1 on Server A to web Site 2 on Server B.

On Web Site 1, I have to provide controls to enter user id and password and which have to be validated on Web Site 2 on server B, after validating them I have to redirect the user to Web site 2.

what is best way fo doing it. code examples are greatly appreciated.

Note: On Web Site 2, user login functionality is already existing and it is provided by ASP.Net login control, am not sure how to handle the user login process from two different places.

or is it the best way to move Web Site 2 from Server B to Server A so that, the same login controls will be shown using Iframe on Web Site A.

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Forms Data Controls :: Using GridView With A User Control And Passing Object Into Control?

Jan 8, 2010

I would like to use the gridview paging feature and have built a gridview with a user control. The data source has lots of columns, so to make it easier I want to return a LIST<MyObject> and just pass <Myobject> into the user control rather than all the data elements. Not sure how I access the object of the data source to bind to the control. Assume it would be during ondatarowbound.

Also, my guess is there is a better way to do this than gridview. I'd take either solution that allows me to have easy paging and pass the complete object into the user control

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Forms Data Controls :: Put User Control In A Control Toolbox?

Oct 7, 2010

User control can not be added in to toolbox,Unless or until it is changed into custom control.(VS 2005.) Once i have changed user control into custom controls(Composite Controls,WebControls,Controls) then i can add it into tool box. These statement are correct?. or is there any possibility to add usercontrol in toolbox?

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Forms Data Controls :: Calendar Control Where A User Selects A Date And Then Inputs Info Into A FormView Control?

Sep 7, 2010

I have a calendar control where a user selects a date and then inputs info into a FormView control. Underneath the FormView is a GridView that shows all data from the SelectedDate on the calendar control. However, when the date is selected, all the information from the table ( from all dates ) is displayed.

[Code]....

And the code behind:

[Code]....

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Server Controls In User Control Are Null When User Control Serves As A Base User Control ?

Jun 4, 2010

I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.

If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?

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Update A Web User Control Code (ascx.cs) File Without Compile The Entire Site?

Apr 2, 2011

I'm using vs2010, asp.net 4 webform.Is there anyway which i can update a code behind file (ascx.cs) file without compile the whole site.because i just want to debug some ascx.cs file, and compile a big whole site will cost 1 minutes at least.

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User Controls :: Getting Data From Iframe In Separate User Control

Sep 18, 2012

I have a website the main page holder is placed within an iframe - everytime I navigate to a page from the menu a new page id is set within the frame. I have a left hand panel seperate to thee i frame which is a usercontrol and is static. I'm trying to capture the main iframe pageid from within the usercontrol.When I navigate to to a new page - the iframe is updated but the usercontrol is not, and im struggling to think of how I can grab frame id from within the usercontrol.

I've tried setting trhe page id as a session variable but this isnt accurrate enough. I need to grab it as as soon as a new page is hit.

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Forms Data Controls :: How To Load User Control Data In A Datalist

Jan 6, 2010

I have the follow code (i just listed the parts that might be the more important to understand my problem):

(Code Behind)

[Code]....
(Page .ascx)
[Code]....

The user control RatingControl shows the rating and the number of rates, the user control Pager is responsible for raising CurrentPageChanged when the page changes and BindData() is a function
that binds data to the Datalist control.

When the page is loaded for the first time BindData() marked with ** is executed , thereafter i only want to load data when the event CurrenPageChanged raises.

So far so good, but the problem is when the CurrentPageChanged is raised and call the BindData() function, the user controls are not loaded properly, and things that i can't understand happen, like the user controls not receiving the properties initialized when they are loaded, but the other controls inside the Datalist like lblDescription are loaded correctly with their data.


Summarizing, the user controls are not loaded correctly in this particular case when the DataBind() is called by an event.

I already searched in the internet, and i read about page life cycle, user controls and i still didn't understand why this happens and how to fix it.

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Forms Data Controls :: Have To Accpted Data From User In A Gridview Like Control?

Apr 19, 2010

I have requirement that i have to accpted data from user in a gridview like control.That its row column heder contatin calender date and row header contain specfic taske ,one have to drag and drop user coreponding date to specfic taskfor eg: column header contatins dates like 1/04/20010 to 30/04/2010and row header contain specific task.one user drag and drop sepcfic entity correspond to sefic date and specific controlI have gone through site to find this type of control allow drag and drop and customize column and row header.

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Forms Data Controls :: Get The Values In The User Control?

Feb 4, 2010

I'd made a WebUserControl called Matrix, this UC inherits from the Gridview control. The Matrix User Control has 9 properties, which of 3 properties are the DataSources DataTables). The 3 DataSources are the RowSource, ColumnSource and DataSource. Together they form an gridview with labels (name of column) at the header of each column, a abel (name of row) at each first cell of a row and rest of the cells on each row are checkboxes. This forms a kind of Matrix, that's why I named it so.

I drag the Matrix User Control on a new .aspx page, for example Index.aspx. In the Page_Load event I set the 3 DataSources and DataBind the Matrix Control. Then the Matrix is build up correctly.The user can now edit the gridview by checking or unchecking the checkboxes. I also have a 'Save' button on the page which has an ID 'cmdSave' to save the changes.What I wanna do is: I want to have a Method within the User Control which gives me back a list of checkboxes which are checked. But when the OnClick event of the cmdSave button is fired, the data of the User Control is null/empty. And how do I get the changedHow can I fix this and build a method which gives me a list of checked checkboxes?If not everything is explained clearcly,

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Forms Data Controls :: Reset Data Bound User Control Shown With Ajax Pop - Up Extender

Nov 1, 2010

I have a web form, and an "add vendor" button. Click the button, a modal dialog pops up (ajax:ModalPopupExtender). User selects one of two radio buttons which shows a data bound asp:View in an update panel - this view is data bound to a single row and must be populated by the user. However I also want to provide a cancel button which should close the modal dialog and reset the bound view.

However what is happening is that the ModalExtender closes, but when the "add vendor" button is presented again, it's still bound to the same data. Do I need to clear my data source? How so I reset the forms/views so that when the 'add vendor' button is clicked again the form is presented as it should be (IE the 2 select options, picking one re-binds the asp:View)?

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Forms Data Controls :: Nested Gridview As User Control?

Jul 3, 2010

I have created a gridview (this is a usercontrol) with another gridview (also a usercontrol) inside it. Now I would like to bind a checkboxlist to the inner gridview. This is my markup for the inner gridview user control

<asp:GridView AutoGenerateColumns="False" GridLines ="None" Width ="100%"

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Forms Data Controls :: Can't Find User Control In Repeater

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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Forms Data Controls :: Set Attribute In Custom User Control And Keep Getting Zero?

Jul 30, 2010

[Code]....

I am having a problem setting the SystemObjectRecordID attribute of my custom control inside a repeater. Currently, the value winds up as zero in the database. Things I have checked:

1) The datatype of the DB column (bigint) and the datatype of AlertId (long) and the datatype of the getter/setter SystemObjectRecordID variable (long) match.

2) If I set '<%# ((Alert)Container.DataItem).AlertId %>' to the Text attribute of a label I get the expected results. So, it has something to do with my custom control and specifically how data isbound to the SystemObjectRecordID attribute.

Now, going to the server, below is what I have for databinding (The page is Default.aspx.cs and the namespace is Company.ProjectWeb.Profiles):

[Code]....

Currently I am trying to pass the value received from a literal (because I know that the values are received as expected here) to the SystemObjectRecordId object. Still isn't working. I am still getting a value of zero when I set a breakpoint and look at the value of SystemObjectRecordId in the codebehind of my control:

[Code]....

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Forms Data Controls :: Rendering User Control To Excel?

May 19, 2010

I have a user control with a datagrid and few other information on title and summary. I would like to render this control to an Excel file !

The problem is , as soon as i try to open the rendered xls file, Excel reports an error, that the file extension is not valid, and that it is not from a trusted resource.

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Forms Data Controls :: Filling Web User Control From Web Form Page

Mar 4, 2011

I have a Web User Control that is sitting in a Tabcontainer on a web page. The user control is on tab 1 and has a listview control in it. In the listview control I have a textbox called txtWorkOrderID. In tab 2 I have a gridview with a button in one of the columns. When the button is clicked I want to grab the ID from the row I'm on and fill the txtWorkOrderID with it on tab 1. I've got things to work as far as grabing the ID and switching back to tab 1, but I keep getting a null reference when I try to put the value into the txtWorkOrderID which tells me its not finding the control. I am using .netVB in VS10. how to reference the textbox in the control on tab 1. here is what I have so far. [Code]....

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Forms Data Controls :: User Control In Gridview Dynamically Using Templatefield

Dec 15, 2010

I binded user control in gridview dynamically using templatefield (through code behind)

User control consists of 2 textboxes and one dropdown.

There is one button outside the gridview on the form. On click of that button i have to save the values of usercontrol's (child controls i.e textbox and dropdown values) but i am not able to get the values of user controls.

I am able to get User Control using LoadControl and child controls using FindControl but not able get values i am getting textbox values as blank and dropdown value as 0th selected index even though there is value entered by the user.

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Forms Data Controls :: Reload User Control When Event Occurs On Web

Feb 1, 2010

I have a user control with a datalist loaded on my web page and also a web form to add another entry to the datalist when the button to submit the new entry I need to reload the user contol to show the new entry

<h1>Admin</h1>
<h2>News</h2>
<asp:label ID="lblSearch" Text="Select News: " runat="server" />
<asp:DropDownList ID="NewsList" runat="server" CssClass="DropDownMenu" />
<asp:Button ID="btnSearch" Text="Search" runat="server" OnClick="btnSearch_Click" />
<br />
<br />
<asp:Label ID="dbErrorMessage" ForeColor="Red" runat="server" />
<asp:Label ID="Successfulmessage" runat="server" />
<br />
<asp:Label ID="lblTitle" runat="server" Text="Title" CssClass="TextBoxLabel" />
<br />
<asp:TextBox ID="txtTitle" runat="server" CssClass="TextBox" />
<br />
<br />
<asp:Label ID="lblNews" runat="server" Text="News" CssClass="TextBoxLabel" />
<br />
<asp:TextBox ID="txtNews" runat="server" TextMode="MultiLine" Width="500px" Rows="10" CssClass="TextBox" />
<br />
<asp:Button ID="btnSubmit" Text="Submit" runat="server" Onclick="btnSubmit_Click" />
<asp:Button ID="btnUpdate" Text="Update" runat="server" OnClick="btnUpdate_Click" />
<asp:Button ID="btnDelete" Text="Delete" runat="server" OnClick="btnDelete_Click" />
<br />
<br />
<uc1:NewsList ID="NewsList1" runat="server" />
<br />
protected void btnSubmit_Click(object sender, EventArgs e)
{
// Define data objects
SqlConnection conn;
SqlCommand comm;
// Read the connection string from Web.Config
string connectionString = ConfigurationManager.ConnectionStrings["platiummindproductions"].ConnectionString;
// Initialise connection
conn = new SqlConnection(connectionString);
// Create Command
comm = new SqlCommand("INSERT INTO News (Title, Date, News) VALUES (@Title, @Date, @News)", conn);
// Add command parameters
comm.Parameters.Add("@Title", System.Data.SqlDbType.NVarChar, 50);
comm.Parameters["@Title"].Value = txtTitle.Text;
comm.Parameters.Add("@Date", System.Data.SqlDbType.DateTime);
comm.Parameters["@Date"].Value = DateTime.Now;
comm.Parameters.Add("@News", System.Data.SqlDbType.NVarChar, 4000);
comm.Parameters["@News"].Value = txtNews.Text;
// Enclose database in try-catch-finally
try
{
// Clear message labels
Successfulmessage.Text = "";
dbErrorMessage.Text = "";
// Open the connection
conn.Open();
// Execute the command
comm.ExecuteNonQuery();
DataBind();
// Display sussessful message
Successfulmessage.Text = "News Updated successfully!";
}
catch
{
// Display error message
dbErrorMessage.Text = "Error updating the News details! Please try again later!";
}
finally
{
// Close the connection
conn.Close();
}
}

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Forms Data Controls :: How To Set DataList's EditItemTemplate To User Control And Databound It

Feb 24, 2011

I have DataList control and I want to assign to it's edititemtemplate some User Control. The problem is I can't find when I should databound UserControl to data, as my UserControl doesn't have static look (it renders different depending on some property values and datasource).

I was try to simply set my user control in edititemtemplate

<EditItemTemplate>
<uc:MyUserControl id="myUserControl1" runat="server" />
</EditItemTemplate>

and then bind it to data in ItemDataBound event handler, but it remains empty

if(e.Item.ItemType == ListItemType.EditItem)
{
var p = (Pair)DataBinder.GetPropertyValue(e.Item.DataItem, "Key");
((AnnouncementUserControl) e.Item.FindControl("userControl1")).RepeaterDataSource =
_templateWorker.ReturnTemplateByAnnouncementId(Convert.ToInt32(p.First), true);
}

how can I databound my control, or another approach which will make me avoid this problem?

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Forms Data Controls :: Not Binding Listview In User Control Properly?

Jun 16, 2010

I don't know what I'm doing wrong but for some reason I'm not able to maintain the index selected value on the listview that I've created within a user control. In a user control I have added a listview. I have exposed the handler, Datasource and DataKeyName. I have populated the datasource of the listview by using the following:

MYLIstView.aspx.cs - user control

[Code]....

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Forms Data Controls :: Dynamic User Control With A Grid View?

Dec 13, 2010

I am dynamically loading user controls into my main page on button event.The user control has a textbox and a gridview When i enter data in textbox , the autopostback event fires and loads data into the gridview. when i load another instance of user control and do any post back the gridview data is not persisting.Until and unless I bind the data, gridview is not having any data after postback.This is creating issue when I al updating a row in gridview as data is not persisting after postback.

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Forms Data Controls :: Passing Grid As A Property To User Control?

Aug 10, 2010

In my project, I need to create a user control to handle the sorting and pagination of all the grids in the application. The grid however will be different in different pages with different formatting.

I am able to do this by exposing a property from user control which takes gridview as the input.

then in page load, i bind this grid, and assign the sorting and paging event handlers to this gridview variable.

This way I am able to do the sorting and paging, but the problem is I have to bind the grid in all the post backs, and then in the sorting and paging events.

So when a user sorts, I have to bind the grid twice, once in page_load and then in sort event of user control.

I can store the first set of records in viewstate and bind that in page load, but is there any other way, so that i dont need to bind the grid in all post backs but only inside of not postback.

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Forms Data Controls :: Create User Control For Gridview Paging?

Jun 21, 2010

I want to create user control for gridview paging, so it may be reusable for every grid in my application, my user control should be like below, how its possible

eg: previous 1,2,3,4,5,6,7,8,9,10 More If i clicks more link next 10 pages of records should be visible, how its process?

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Forms Data Controls :: Expression Bound To User Control Parameter?

Aug 19, 2010

How can I get pass the DataKey of a GridView to a usercontol, preferably without code behind.

Why doesn't this work:

<ucOrderDetails:AJAX_OrderDetail ID="od1" runat="server" OrderNumber='<%# GridView1.SelectedValue.ToString() %>' />

GridView1 is just a list of orders with a DataKey of OrderNumber.

od1 is not inside of a databout control, does it need to be?

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