Web Forms :: Values In User Control Fields Empty When AutoEventWireup=true ?
Aug 29, 2010
I have a web form and I have a user control on it. This user control contains a panel with some user properties that are to be stored in a database. So far nothing fancy. The user control itself contains a panel and is working fine (all code to retrieve and store the values is working).
I used the default settings of creating a user control and one of them was AutoEventWireup=true. This works fine because I also have some dropdown boxes (and other fields) that need to be filled with values from the database and that happens in the Page_load event.
The panel specifies the 'DefaultButton' which calls a method when clicked to save the values after the user has changed them.
On this click the code of the method is called, I confirmed that, but I found out that the values of my controls on the user control (for example the Textbox control) are empty. As a non-ASP.NET developer I couldn't figure out why. So I changed some settings like AutoEventWireup to false.
Off course this resulted in my dropdown boxes no longer to be initially filled, but my surprise was big to find out my controls actually contained the values the user typed in.
Logically I need both the values and the dropdowns filled, but for now it seems one or the other.
View 3 Replies
Similar Messages:
Aug 31, 2010
i am using autoeventwireup="true" .i know this means it automatically combined page events of page life cycle.but when i set it to false form is running well and i dont need to write any code.so what is the diffrence what is set it true or false
View 9 Replies
Oct 13, 2010
I have a detailsview in insert mode. I want to prompt the user to enter data in all fields, if left empty. Could someone please find a few minutes to show me how to do it?
View 2 Replies
Sep 27, 2010
I was develop an application (ASP.Net) Using (VS.Net C# 2010 & SQL Server 2008)
And I was applying (3-tyer Basics) and I'm not using wizard forever in my application.
The problem is :
When I try to passing the parameters to database, some fields I don't type it But it's show in database (Empty like "Space") in text fields and (01-01-1900) in date fields
Although it's must be (Null) .
How I can pass parameters with Null Values for the fields that's not typed?
View 14 Replies
Jan 15, 2010
I have a sql database that on some field will have a empty string/field. I am using a Datalist to display my results. How do I not make the labels that are empty not display? Currently if the field is empty it will leave a space there which my goal is if the field is empty do not leave a white space instead move the other colunms up.
View 2 Replies
Sep 25, 2010
Is there an easy way to reset all the fields in a form. I have around 100 controls in my asp.net form and there is submit and reset buttons.
How do I make all values in the fields null when user hits reset button?
View 3 Replies
Mar 18, 2011
I wanted to know if we can pass values from Parent page (in this case from Default.aspx page) to the user control and maintain those values on subsequent "Add/Load" of user control.
So in short, if I click the "Add" button it loads my "webusercontrol" and also I am able to pass my default.aspx dropdownlist value to this dynamically loaded user control and assign it to a "Label or Textbox" which resides in my "webusercontrol", now the problem is that the value doesn't persists! What I meant is , when I click "Add" button again the "webusercontrol" gets loaded again perfectly but now all my "Label's" in webusercontrol has the new selected value from the default.aspx dropdownlist.
So say for instance I have a Dropdownlist in Default.aspx page with Values "Apple, BlackBerry, Nokia" and initial value to be passed is "Apple", I click the "Add" button, now my "Label" inside webusercontrol has the value "Apple", perfect! Next when I click "Add" button again and select a different value to be passed this time say "BlackBerry" now I have 2 webusercontrol loaded on the page, so that means I have 2 "Labels" with different ID's, but now my first Label initially had the value "Apple" because that's what I had passed and now when I passed the value "Blackberry" both the labels of my webusercontrol has the value "BlackBerry" instead of one being "Apple" and another "BlackBerry"
Is there a way to resolve this issue? may be Dictionary List?
View 3 Replies
May 11, 2010
I have set a couple of my DetailsView fields to readonly=true. In Update mode the fields are readonly but in Insert mode they are not readonly. What do I do to set it to readonly or blank (no field for entry)?
View 1 Replies
Jul 21, 2010
I have a ASP.Net project that is setup in such a way that it can be dropped into any site and "just work." All the paths are relative to the current file, not relative to the "~". The paths are determined by ThePath = this.TemplateSourceDirectory;
This is working for everything expect registering a custom control that is created and added to one of the pages. I can add the control just fine with the Page.LoadControl but I cant cast it as the correct type to access anything.
How can I add a reference to the class from within the code itself?
View 2 Replies
Sep 2, 2010
I have a FormView with a byte field. The field is not required and if I don't enter a value, I get an error that the value is not acceptable in a byte field. I can replace the null value with 0 but I would prefer not to.
What is the best way to handle this so that if I do not enter a value in a byte (or int16) field to insert a null value (or whatever they do in the ASP.net).
View 4 Replies
Apr 1, 2011
I have a WCF service with cyclic references that I was using the CyclicReferencesAwareAttribute attribute (http://chabster.blogspot.com/2008/02/wcf-cyclic-references-support.html) to solve. However now I want to use the same service with a Silverlight client. Receiving data works well on the Silverlight client with this method, however the CyclicReferencesAwareAttribute attribute does not work on the Silverlight side when I want to send objects back again.
I have changed to use the IsReference property on the data contract which is supposed to get round with this issue. However now the objects that are returned are empty! (All fields are either default or null). This is the same in my ASP.NET client (original) and my Silverlight client.
Has anyone hit is issue before? Here is the attribute [System.Runtime.Serialization.DataContract(Namespace="http://testnamespace.co.uk/entities", IsReference=true)]
View 1 Replies
Apr 8, 2010
I have a Formview control that has several lookup fields. The value is an int ID but the textfield is the name, e.g. value = StateID, displayed text = StateCode)
If the user leaves that field blank, I get a Server Error when attempting to Update: Failed to set one or more properties on type orgOrganization. is not a valid value for Int32.
In the table for the LinqDataSource which provides the data for the Formview, all fields except the text field OrganizationName allow Nulls.
Does anyone know why this might be happening? I tried a test which just has the numbers, no lookups, and get the same result.
View 1 Replies
Jul 10, 2013
When I Login the page using username and password and then click the logout button and after again click Login button without entering username and password it will be login,I want to show error
View 1 Replies
Jun 7, 2010
I am tryin to get records where certain fields are empty, but the following sql does not give me correct result.
SELECT [specimen Type], [Year], [Lab Number]
From [PET Fish] where
ltrim(rtrim([Diagnosis])) = '' or
ltrim(rtrim([Results])) = '' or
ltrim(rtrim([Sign out Date])) = ''
It should return all records, but it returns none.
View 2 Replies
May 15, 2010
i have a multiple user controls, each user control has multiple properties, i am loading those controls dynamically in my aspx page,i save the user control name in a hidden field in my aspx page,so i can know whats usercontrol are currently loaded,now i want to set/get some values for Currently user control properties,how can i know the properies available for that dynamics loads control ?also how to know the class for that control ?
View 3 Replies
Apr 21, 2010
I have got One Problem I have one aspx there are two user control usercontrol are inside in multiview and there is two option in each user control previous and next when we click previous then all data are removed i want to preserve all value of each control i have also done enable viewstate=true. plz give me a innovative idea. or suitable post
View 2 Replies
Feb 18, 2010
I have a user control that i add at run time like:
PlaceHolder1.Controls.Add(mycontrol) because i want to make it appear when i click Checkbox control
Checkbox_changed IF CheckBox2.Checked THEN
PlaceHolder1.Visible = TRUE
The problem is that i want to get values from the page and use them within User Control page
View 7 Replies
Mar 17, 2010
I want to create a user registration form, I used the CreateUserWizard control, and i intend to add more filed with the wizard interface, the fields were firstname,lastname, telephone all these with the textBox control and sex-male or female with a radioButton control, and upload photo with the FileUpload control.
After a successfull submit to the sql database, i should be able to retrieve all this informtion inluding the photo uploaded in another aspx page using any of the data control in y toolbox and resizein the photo to be 100/100 pixel size. pls could you write out the code (step by step details) to follow to implement all this in my asp.net 3.5 c# website. I have already created a table in my database, using userId as my ForeignKey.
View 1 Replies
Jun 17, 2010
I have a simple user control which toggles between the visibility of a few images depending on the UserId. When the page is loaded for the first time, the userID is being assigned correctly (I'm debugging). However, there are two other buttons on the page for filtering the type of users, they are perform their functionality via Ajax (not the toolkit, but the normal javascript ajax) When one of these buttons are clicked, the user control cant get the userid, it always comes up as Zero. Oh, btw, the usercontrol is in a DataRepeater, so it occurs for each of the user.. all the time.. or thats the Idea. I have several other pages like this, (none of them have ajax) and the user control has no problems whatsoever.
My User control code:
[Code]....
And the Data Repeater is something like this:
[Code]....
Here, Immediately after the userControl <ucAB:....> line, I am printing the userid just to see if its valid (by <%# Eval("UserId") %> and the user id's are valid too. I dont understand why the User Control cant pick it up on ajax postback?
View 3 Replies
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,
View 3 Replies
Mar 10, 2010
I am exposing state_v value by using property in aspx.vb page..How can I create an instace of the page in User control to access this property...mypage.aspx
<%@ Register ........%>
<div>
<asp:dropdownlist ID="ddl" runat="server"></asp:Dropdownlist>
[code]...
View 2 Replies
Jan 28, 2010
How do I check if my value is empty AND Isnull? I need to check for both, using ISNULL is not enough because the data can change just so that it is empty.
how I can change my query to accommodate this?
[Code]....
View 5 Replies
Sep 13, 2010
How can I make the following code shorter and more efficient.
I want to loop through the check box list for all true values.
I want to get the check list item and complare with database value then check the box.
[code]....
View 4 Replies
Nov 22, 2010
I was told to use a Repeater control in what I am doing which is a "Data Entry" screen with ASP.NET controls -a standard "address" like form. In cases, the fields on the form will repeated twice, once for the original values, one for the changed values. I have not used this control before but it seems like I have to bind to a database. Instead, I have an Entity object that has been obtained via a Repository. Can I bind to an object like this?
[DataContract()]
public class RON
{
[code]...
View 4 Replies
Dec 1, 2010
I am developing an application in which I have to use a User Control.I have created a user control in which I am using
- A Label (whose text will be dynamic)
- 3 Textboxes (whose values will be also dynamic).
So far everything is working fine.Now I used this user control in a aspx page and at the page_load i have to loop thru all the instance of this user control and assign values to them and here the problem begins.The values are not being assigned to the controls.
Here is the code which i have written to loop thru User Control instances and assign values to them.
[Code]...
View 9 Replies
