I get this error when I try to have my C# class change the skin of an asp control:
The 'SkinId' property can only be set in or before the Page_PreInit event for static controls. For dynamic controls, set the property before adding it to the Controls collection.
My goal is to provide a panel, call it ID="response", on every page, and then dynamically change it's CSS class from Error to Success, or Success to Error (so it's red or green). And also I make it visible = true, when a response is created.
Apparently, I am forced to use CssClass attribute, which is the only way this will work.
As a side-off-topic note: In PHP, you would not have a problem of using different "pre-init" "post-init" etc. A completely unnecessary process. You would simply change the html before you send it back to the user. I'm a bit confused why ASP.NET decides to overcomplicate everything. It's a bit silly for me to take time to learn all these different complicated processes to simply display a webpage. It takes time to learn all the quirks written in difficult-to-read ASP life-cycle documents on microsoft. Not to insult any microsoft people, but it's just not practical.
when I apply theme through Theme attribute of @page directive, It works fine but when I apply a theme for some perticular controls using theirSkinID attribute It doesn't work
Just upgraded to VWD2010. I created a skin file and put it in App_Themes. I created a skin id for a couple of controls: gridview, dropdown etc. Normally in the properties you can go to skinid and a drop down with the skin id shows up and you can select it. Thats not happening. Also, if I put my skinid in for the skinid property of the component its not displaying the formating at all. For example: Here is what I have for a gridview in my skin file named /App_Themes/Default/Default.skin
And when I'm In the TextBox on my usercontrol I can't see in the SkinID property the textBoxSkin. I insert in the code SkinID="textBoxSkin" but nothing happened.
I currently have a repeater control and inside the itemtemplate I have a usercontrol. This usercontrol renders correctly, but I am trying to assign a dataitem to a property in the repeater control.
[code]...
RequestId is just an Int32. It just doesn't assign it.
I can put the eval outside of the usercontrol just in the itemtemplate and it correctly outputs the right id.
If I remove the whole eval and just type a number in then it works fine. I was using an EntityDataSource and this automatically binded to the repeater. It printed out all the information from the database on the screen without any codebehind. But when I put in the code behind Repeater1.DataBind(); it then started to work.
I don't know why, but hey it's solved. It now successfully passes the value through. I imagine it has something to do with the page lifecycle.
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);** }
I have a user control in asp.net that i need to dynmically set properties for. The propety and property values are in a dictionary, for example:
Dictionary<string, string> propertyValues; Control c = Page.LoadControl("~/Control.ascx")
I can currently set the properties on the control using reflection, however, with .net 4 and the new dynamic keyword, is there an easier way to do it, for example, something like this:
How to set proprety for List dynamically. I have a WebPage class having properties. strNodeName is one of the property of this class which is the parameters of method. I want to set the string strTitle according to the parameter strNodeName i.e., set
strTitle = _list[i].Title.ToString(); I want Title to be the strNodeName. Like if strNodeName = Author, then strTitle = _list[i].Author.ToString(); if strNodeName = CoAuthor, then strTitle = _list[i].CoAuthor.ToString();  Below is my code. [Code]....
I'm trying to reference a public property from a string. How can this be done in vb.net? I have the text value of "FirstName" stored in strucParam(i).TxtPropertyName.
This is what I'm currently doing:
Dim tmpValue As String Dim ucAppName As UserControl_appName = CType(Parent.FindControl(strucParam(i).ParentFindControl), UserControl_appName) tmpValue = ucAppName.FirstName.Text
How can I use the value in strucParam(i).TxtPropertyName so that I can remove ".FirstName" from my code?
I have a page with a textbox. User enter the WCF Service URI and my program get the method names and the parameters. Then user enter the values and I want to dynamically call the method with passed parameter values.
how can I dynamically set the value of a property for a given object? For example: I have a method GetInfo(string name, Color favcolor) where name is string and favcolor is of System.Drawing.color type. How can I set the color attribute dynamically with user supplied value.
[Code]....
The last line is currently throwing an error
Object of type 'System.Drawing.Color' cannot be converted to type 'System.Drawing.Color'.
I have multiple .sitemap xml defined with different providers. For one xml file, I want to change the url (append Customerid in the url) by taking the defined url in xml file. I want this to be changed when the page is loaded the first time.
I want to do this inline in a normal HyperLink control that is not databound.
Edit: Got some good answers, but what I'm looking for is how to do this specifically in a normal HyperLink (not in a DataGrid/GridView) and inline (not via a function call or code behind).
I need to configure a property of a custom control I wrote, specifically before the control calls OnInit. If I assign it as part of the ASPX file, it naturally works, but if I instead move the assignment to different parts of the code-behind, it will throw an error for having an empty and invalid value. The following is what it looks like when functional in the ASPX page.
The property in question is FilterString, which is just a simple string. It should be noted as well that the FieldName property (inheritted from the control's base class "BaseFieldControl") would also throw an error if it is not initialized, but if I set FieldName in the code behind's OnInit method, it works correctly. FilterString is not so, it won't actually be assigned. So I know that some methods for certain properties will work for setting the property's value, but it won't always work. I tried placing it in OnPreInit as well, to no avail.
I am taking a dynamic assignment approach because the functionality of this page needs to be replicated for a number of different lists, and the FilterString and FieldName properties will differ in every case. Rather than write half a dozen mostly-identical aspx pages all with the same code behind but differing just in what those two properties are, I figured it would be wiser to use the page's query string and some derived parameters to set those properties dynamically. As such, what methods are available to accomplish this task?
I'm trying to use PostBackUrl on my asp.net form (insert mode) to go back to previous page. I'm hoping to use Request.UrlReferrer.AbsoluteURL or similar.The difficulty I have is how to assign value to link button (called InsertButton) property "PostBackURL".
Some examples show simply InsertButton.PostBackUrl = Request.UrlReferrer.AbsoluteURL but it my case it doesn't recognize the control. I'm using VS 2010 with asp.net 4.0
In an ASP.NET 3.5 VB web app, I successfully manage to cache an object containing several personal details such as name, address, etc. One of the items is CreditNum which I'd like to change in the cache on the fly. Is there a way to access this directly in the cache or do I have to destroy and rebuild the whole object just to change the value of objMemberDetails.CreditNum?The cache is set using:
Public Shared Sub CacheSet(ByVal key As String, ByVal value As Object) Dim userID As String = HttpContext.Current.User.Identity.Name HttpContext.Current.Cache(key & "_" & userID) = value End Sub
i am unable to change the selectedindex property to 0 it is coming as -1 only and the code wat i am using is
if (lstintellisense.SelectedIndex.ToString() == "-1") { lstintellisense.SelectedIndex = 0; }
after making 0 also its remaining as -1 only and i am getting exception as InvalidArgument=Value of '0' is not valid for 'SelectedIndex'. Parameter name: SelectedIndex
