Getting the Selected Item of dropdownlist inside Web User Control on a Web Form
Ive got a dropdownlist control inside a web user control called Entity.ascx. This web user control is on a webform.aspx. In Entity.ascx class I created a SelectedEntity property that returns the selected item in the dropdownlist.
Inside webform.aspx when btnGo is pushed I set a string and pass it in the url. I am trying to get the entity they selected via the property (SelectedEntity) inside Entity.ascx. As the SelectedEntity property tries to return the selected item in the dropdownlist I get this error:
System.NullReferenceException: Object reference not set to an instance...Getting the control id of a control inside gridview control
uhmm.. a little bit confusing regarding my subject because i dont know how to say it...by the way my problem is how can i get the id of a control (e.g. textbox) inside the gridview... and the textbox is in the templatefield... is there any way i can get its id?? hoping i could get a reply as soon as possible... Regards,MhaeyPlease remember to click “Mark as Answer” on the post that helps you.. =)
What do you want's to do by getting the id of the Text box?
Do you want's to find particular Textbox with certain id ?
Kamran ShahidSr. Software Engineer(MCP,MCAD.net,MC...How to get control inside datalist web server control
I am using <asp:hyperlink id="hyper"> control in one datalist control, i want to bind url at the time of itemdatabound event so please suggest me how to get this controls handle
See if this works (in C#):
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
HyperLink hl = e.Item.FindControl("hyper") as HyperLink;
hl.NavigateUrl = "whatever";
...Controlling web control instances on Web Form
I have created a composite control, extending functionality of the Hidden Control. However, I would like to prevent the user from adding this control to the page multiple times. I only want one instance of the control on the Web Form. What setting in my project to I adjust to enable this functionality? I can not find it in any of the books that I have referenced. Is this a setting or is this code that has to be added to the inheriting class.
Looks like there is no standard apporach. But I'd consider using static field to count number of created objects and throw exception if second object ...User Control Issue
Please refer to this:
http://forums.asp.net/t/1398304.aspxGary yang - MSFTMicrosoft Online Community SupportPlease remember to mark the replies as answers if they help and unmark them if they provide no help....how to call controls of web control form in coding of other forms?
hello everyone i have one problem i have created one webcontrol shoppingcart in which there are two labels one of qty and other of amt which are initially enable =falsenow on other page(aspx page) i have one txtbox of qty as txtqty i want tat as soon as user enters qty txtqty and clicks on add cart button it shd be display d value in lblqty of web control shopping cart make sure i m using datalist on aspx page so give me suggestions on tat basis and my coding is in vb. plz give ur suggestions as fast as possible. Neeti
what do you mean by webcontrol.... it this user control or normal ...Can't get property from a User Control inside a Repeater control
I have a public property inside my usercontrol which I set inside the Repeater.ItemDataBound event as follows:<code>If blnFirstTime Then Dim lblstrDate As Label = DirectCast(e.Item.FindControl("lblPressReleaseDate"), Label) blnFirstTime = False strDate = lblstrDate.Text End If</code>After the user control finishes databinding, I want to take th...Web control in web control
Hi,There are two simple web user controls A and B, where B contains A. They just display the bunch of text boxes, so I do not need them even in tool pane. They sit in the same project next to web form.I noticed that web user control put on ASPX page does not appear in code behind, but if I create it with protected keyword and name being exactly the same as id it works fine. I can access such a web control from code behind and see the value assigned in IE. The problem is that the same routine does work for my A web control in B. When I assign the value IE, I keep getting null reference. ...Custom Web Control inside another Custom Web Control
I created a custom web control (CusWebNew) that displays some textboxes by adding them to the ControlCollection of the webcontrol. I also created a custom webcontrol (CustWebButton) that inherts from Button control, and overrided the OnClick function.
When I use CustWebButton on a regular web form, it seems to function correctly.
However, when I added to be part of the ControlCollection of CustWebNew, it stops to work.
Any ideas why?
What do you mean by stops to work? Explain what you are trying to do with it and what it doesn't do.Brian"Trust in the...How to access individual controls from a form containing the web user control containing those controls
Below is a block of code in my .aspx form named default.aspx. In this form I load a web user control. I then add it to a place holder control.(Lines 3 and 4 below) So how do I access the individual controls in my web user control? I want to set the properties on those controls, but I am baffled as to how to access the control. For example I have a text label control named "label3". How do I access this control.
Because for example, under certain situations I want to hide that control. ( Label3.Visible = false;)
2&nb...Convert a html table control to a Table Web Server Control
How Convert a html table control to a Table Web Server Control?
add runat="server" attribute to the <table> tag...controlling an object in a web control from the page the web control is placed in
I have created a web control in vb.net that has an image button and an image. when it loads the image button is visible and the image is not.
I want to be able from the page which "includes" the web control to set the image button to invisible and the image to visible.
When I tried this, the main page didn't recognise the image button or the image (both < asp: objects).
help would be gratefully appreciated.
oh yeah, it's inline code so any code behind stuff will just confuse me ;)
Some code please.-- Justin Lovell...masterpage and control formatting (table control, HTML table control)
I have a master page that contains 1 contentplaceholder. In my default.aspx (that uses the masterpage layout) I have a table server control. During page_load I get the data I need and repeatedly add the usercontrol to the table control, one user control per row. My user control is basically a HTML table with several rows and columns that's populated with data upon creation. I want this table to fill the contentplaceholder's width. In addition within the masterpage I have a CSS link for my stylesheet.
Here are my questions:
Is there a better way of adding ...Getting a web form's properties to a Custom User Control
Ok. This is hopefully a simple question that someone could help me out on. I've researched but only found out how to get a user control properties to a web form.
Anyway, I have created a custom user control (Help button with a menu extender) which will be used on several pages. The menu that extends from the button will not be static, so I will want to load the right data (from my xml file) depending on which page the help button is on. For example, my custom user control will be on pages news and the other on media. Now, when the user control loads on the news page, I need ...