Web Forms :: Nested Dynamic UserControl Drops Value Of Textbox - Not Dropdownlist?
Aug 12, 2010
I have a webUserControl that is nested inside of another dynamically loaded usercontrol. The nested user control (harddrive) can have multiple iterations, see below for hierarchy When a postback occurs the value in the dropdownlist inside of the nested userControl is saved, but the data in the textboxes is lost. any ideas?
Hierarchy:
insert.aspx
[^--loads] asset.ascx
[^--- loads] harddrive.ascx -- there can be multiple instances of this control inside of the asset.ascx user control
When I try to use this code in a Form View, I get an error message:
Compiler Error Message: CS0103: The name avgift_namnTextBox is not in the current context ROW: 35
Rad 33: if (dropDownlist.SelectedValue == "Other") Rad 34: { Rad 35: avgift_namnTextBox.Enabled = true; Rad 36: avgift_namnTextBox.Text = string.Empty; Rad 37: avgift_prisTextBox.Enabled = true;
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.
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); }
I want to add inputs from textboxes, ddl to datagridview without saving it to database by clicking on add button as many rows i want and later save it to database when clicked on save button....
I have a user control which I load dynamically using LoadControl. In this UserControl I have a button with assigned OnClick event, but when I click that button, the event is not fired. I'm populating the user control in UpdatePanel's Load event (I invoke __dopostback from JS).
I have a gridview with 3 nested dropdownlists in one cell on edit like this:To get the exact fields when the user clicks on edit I used the following code(yes it's messy)
[Code]....
The BLLOnderhoud is a class and the getReserveInfo is used to get the Model - Brand(merk) Information.Since the dropdownlists are nested in the gridview I can't call them directly and they can't call any of my functions.And this is the problem, when I change the dropdownfield Model the Auto field wich is the last dropdown(in the picture is a typo) should be binded like in the following code:
[Code]....
But the dropdownlist onDataBound event can't call any of my functions that are in my class.So my question is how can the onDataBound event of the second dropbox trigger a function? The only thing that the function has to do is to bind the 3rd dropdownlist
I am adding a usercontrol dynamically in my page, problum is this when i click the save button on the user control it unload itself, how do i sustail on the page untill i himself unload it??
I have a UserControl that has some controls inside. I want to refer those controls after, in another postback. But when I try to get them the Controls property of my controls returns null. I'm working on vs2008.
in my aspx page i have some controls loadded dynamic and other one loaded static, when i am loading the user control dynamically,the dynamic usercontrols loaded successfully, but all static control inside page will be removed! i load the user control using the bellow code inside PlaceHolder. this is my code in aspx page:
for my dynamic user control, i am trying to do any event from that control (delete, update .... etc) but it disappeard when i make any event! this the code in the page to load it dynamically:
I have dynamic button in tab panel. I want to load a usercontrol through this button in tab panel. but it does not work!!! would some body please tell me why is that happen? I also debug my code and it works correctlly but user control does not load in tab panel.
I have two UserControls on a MasterPage. DataEntryUC contains several TextBoxes and DropDownList. NavSaveUC contains navigation buttons. When the user clicks on a navigation button, I will be saving the data entered into DataEntryUC from the NavSaveUC UserControl.
I have a couple of tables in my DB that contain stored procedure names, control names, control types, SqlDbTypes, etc.... that correlate with DataEntryUC.
How do I reference a text box that is on DataEntryUC from NavSaveUC?
I have been working on the following code from NavSaveUC with no luck.
Dim MyControlName = "txtFirstName" Dim MyControlType = "TextBox" Dim MyStringValue as String Dim tmpTxtControl as TextBox Dim tmpDdlControl as DropDownList Select Case MyControlType Case "TextBox" tmpTxtControl = CType(Page.FindControl(MyControlName, TextBox) MyStringValue = tmpTxtControl.Text Case "DropDownList" tmpDdlControl = CType(Page.FindControl(MyControlName, DropDownList) MyStringValue = tmpDdlControl.SelectedValue End Select
In the process of migrating an old VS2003 web app to VS2008, I'm running into this issue and haven't been able to find a resolution. Sample code: "Default.aspx" has a PlaceHolder(ToolHeader). In the Page_Load(), we dynamically load a user control passing in the virtual path to a helper method [public Control ParseUserControl(string virtualPath)]. This reads the content from the physical path, returns a Control from ParseControl() method. I immediately get the following error when I open the default.aspx page in browser.
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: Could not load type 'DynamicUC.UcControl'.
Source Error: Line 1: <%@ Control AutoEventWireup="true" CodeBehind="UcControl.ascx.cs" Inherits="DynamicUC.UcControl" %>
Can't figure out why it can't load the type. Namespaces are looking right. I try removing the Inherits="DynamicUC.UcControl" attribute from the "ucControl.ascx", it loads the page fine. Also, this control is a simple one and has no code behind. There are others with actual code behind. They won't work if I remove the Inherits attribute.
Can anyone add a complete input about how to create Parent Property with multiple child properties or in short nested properties.
Example: Style tag: which has properties like font, color, display... etc? which accept objects and its value.
[code]....
As soon as Rainbow property is typed, user should get intellisense for list of number of colors. Then accordingly user can select list of those colors and assign a value to them.
I have what is probably a basic question but I do not understand if/why there is a difference. I have a simple asp.net page with a staticly created DropDownList and Panel control. The user can select one of three options if the drop down (Employee, Company, Address) which should load the respective custom UserControl into the panel below. By default, I have the Employee control selected in the drop down and it should be displayed on the intial Page Load (!Page.IsPostBack).
If I do the following it performs the desired behavior on the intial load:
[Code]....
If I try the following, the User Control does not appear on the initial page load:
[Code]....
I noticed if I do it with a textbox instead of a UserControl, it works however:
[Code]....
I assume there is some sort of behavioral difference in the way the loading is done between a UserControl and WebControl.
I'm attempting to import, using VB.Net, a spreadsheet from some other users than myself. In the spreadsheet with headers, the numbers I'm importing are in the first column of the spreadsheet (Excel 2003 to 2007). I've defined my datacolumn for the column with the numbers as a "string". What's happening is the trailing zero is dropped; so 1.1 and 1.10 both appear as => 1.1.My code is attatched below.I know I'm missing something, I just don't see it!I've tried both; MicroSoft.JET.OleDb.4.0 and MicroSoft.ACE.OLEDB.12.0 but neither seems to make a difference.
I'm having a problem trying to retrieve a dropdownlist value that is located within a nested repeater. Basically I'm trying to create a shopping cart that allows the user to select a shipping method and the shipping method is contained in the repeater. So my page structure looks something like this.
Gridview
[Code]....
To me this should work, but the problem I'm facing is that there are no repeater items. The Items.Count property in the repeater is 0. I am not calling DataBind on the Gridview nor the Repeater before this code is reached (this code is the first thing that happens in my button click event) and my binding is done inside a !IsPostBack statement in my page load. I've made sure databinding is not occurring by setting breakpoints on the code that databinds both the gridview and repeater.
It seems to me like the nested repeater is losing it's viewstate or something on a postback. If that's the case, how can I get the selected value of that dropdown control inside a nested repeater?
I am having trouble populating two dropdownlist controls with a list of files.The controls should be loaded with a list of images and paths that are held in the IDictionary object.The dropdown controls are nested in a Formview Control under the currentmode of insert or edit.Here's a clip of my form code:
i have created a usercontrol that get some input from the user in the textbox. now i want to get that value in my page containing the same user control.
How do I set the selectparameter of Objectdatasource in usercontrol from dropdownlist in parent page?I tried the following but when I select a new value in the dropdownlist it does not change the data from the initial page load
Protected Sub ODSLocations_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceSelectingEventArgs) Handles ODSLocations.Selecting Dim ntid As DropDownList = CType(Me.Parent.FindControl("DDLEmployees"), DropDownList) e.InputParameters("ntid") = ntid.SelectedValue End Sub
I have a webform that has a formview (fvwContract) and inside itemtemplate there is a Tabcontainer with three tabs (invoice (spanish: factura), receipt (spanish: recibo) and beneficiary (spanish: beneficiario). I have another formview inside invoice tab (fvwFactura) with many textboxes that I need to manipulate in code behind. The thing is that I canīt reference any of them like the following:
I have a .ascx file residing in another page which has a button on it. On click I run a select statement that accesses the textbox for a value.
However, it keeps returning a Null Exception Error. I am trying access the textbox and its text through
[Code]....
I also tried -[Code]....
I also tried -[Code]....
But none of them work. Please can someone advise me how I find the textbox and then access its text?I have looked round the forums / google and cant find a way of doing this!
I can't seem to find a textbox using FindControl. The textbox is located inside an asp:Table, asp:Table is inside a UserControl and I load the usercontrol into the parent page.
