In vsw2005/ASP.Net 2 i have a formview used for project management; i recently added a new set of dates and a dropdownlist for the contact name. It is essentially a duplicate of another set of dates and contact. Both dropdownlists use the same sqldatasource, but the new one is throwing an error when the form changes to edit mode:
"'ddlInstall2Engineer' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value"
The error occurs even though I have a static listitem with appenddatabounditems set to true. Here is the markup for both ddl and sqldatasource (as you can see, other than id and name of field being bound to, they are identical):
I need to set the "Text" property of a label inside a gridview using, I know how to set the label using static value and I also know how to set the label using the "Bind" keyword but I want to do both, something like this:
Which one is faster? For a dropdownlist binding it the first time and using ViewSate or Turning of viewstate, keeping the data in a static datatable and binding the dropdownlist each time on a postback
i m want to bind asp.net menu control from database and some of static value both, i know how to bind menu from DB and also know how to static bind the data in Menu, but i want two add two static record in menu control and after that i want to bind data from DB in menu control, and than again three static record bind in menu..... i think a lot about this and finally i thought to add my static data in dataset at particular positons, but problem is that i dont know how to bind static data in dataset at particular 1st 2nd and 4th,5th,6th pos.
i want to bind data after performing delete operation using webmethod.
as i delete record from a list, i want the remainig records binding through webmethod....is it possible?? because i am not able to get repeater in my static webmethod
How to bind "OnDataBound" event of "DropDownList" in declarative syntax to a static method in some other class ?e.g<asp:DropDownList runat="server" id="d1" OnDataBound="SomeOtherClassThanThisPage.StaticMethod"></asp:DropDownList>
This will give the error, "Page does not contain a definition for SomeOtherClassThanThisPage. it like this or it be done in the Code Behind only ?
I have a private static field in my Controller class in an MVC web application.
I have a static method in that controller that assigns some value to that static field, I want to apply lock on that static field until some other instance method in the controller uses the value stored in the static field and then releases it.
DETAILS:
I have a controller named BaseController having a static ClientId field as follows and two methods as follows:-
public static string ClientId = ""; static void OnClientConnected(string clientId, ref Dictionary<string, object> list) { list.Add("a", "b"); // I want the ClientId to be locked here, so that it can not be accessed by other requests coming to the server and wait for ClientId to be released:- BaseController.clientId = clientId; } public ActionResult Handler() { if (something) { // use the static ClientId here } // Release the ClientId here, so it can now be used by other web requests coming to the server. return View(); }
I did some research after posting. All I found was simple examples for no-layer architectures, like connecting to a database from your aspx page, so, in a corporate environment, it is unnaceptable.
I need to call a server-side method (using ASP.NET Ajax) in a 3-layer architecture.
For example, my Default.aspx contains a method LoadProducts().
[Code]....
[Code]....
This cannot change. There is no way to convert Business and Data layers to static.
How can I call the LoadProducts() method using ASP.NET Ajax?
I have a RadioButtonList with three ListItems, like this:
[Code]....
TrueRuleCondition, FalseRuleCondition, and CustomRuleCondition are protected constants in the code-behind file that I want to use as the values for my listitems. Unfortunately, the values get treated as literal values instead of having the values of the variables inserted. Does anyone know of a way to do this or why this doesn't work as I expect it to?
i wanna change styles for listItem in dropdownlist when i click a dropdownlist , a list of items will drop down, i wanna change the color and round 2 bottom corners of the box's border contains listItems and the button in dropdownlist. please help me, show me some approaches to get it.
I have 2 radiobuttonlist in a web forms, each contains of 4 ListItem. So there are 8 ListItems in total. It is initialised such that none of the ListItems is selected. I want to validate that at least one of the ListItems is selected when submit button is pressed. How to do it? i.e. at least 1 ListItem is selected, either from radiobuttonlist1 or radiobuttonlist2.
I have 2 radiobuttonlist in a web forms, each contains of 4 ListItem. So there are 8 ListItems in total. It is initialised such that none of the ListItems is selected. I want to validate that at least one of the ListItems is selected when submit button is pressed. How to do it? i.e. at least 1 ListItem is selected, either from radiobuttonlist1 or radiobuttonlist2.
but when I run it, it doesnt show it, until after i chose something else and it postback then it shows it at the top. I think it has something to do with the process in which things are loading, this being first, then overriden by the sqldatasource, how can i make this load last? or maybe im just not right about this.
Is it possible to change the position of the ListItem box on a CheckBoxList? I need to have something like:
[Code]....
I'm creating the ListItems dinamically with data coming from a DB and assigning one value ListItem.Name and another to the ListItem.Value. Probably each entry on the CheckBoxList will need to be something like
---------------------------------------------------------------- | label | ListItem with only Value and no Name | ----------------------------------------------------------------
I have a question about C Sharp ASP.NET:Is there a difference (in code speed, resources) between:public static variable declared in public static class MyGlobals in a 'Code File' template;and the variable declared in a normal 'Class File' template;I use this variable in 2 different Class Files and also in _Default Page codebehind cs file.In fact in my case I need about 20 global variables of type List<string>.
Using the following menu item code, how can I pass a paramater or variable in the url so that when the page being redirected loads, it reads the parameter or variable.
