I have a few web applications that I maintain and I find myself very often writing the same block of code over and over again to bind a GridView to a data source. I'm trying to create a Generic method to handle data binding but I'm having trouble getting it to work with Repeaters and DataLists.
Here is the Generic method I have so far:
[code]....
That way I can just define my CommandText then make a call to "BindControls(myGridView, cmd)" instead of retyping this same basic block of code every time I need to bind a grid.
The problem is, this doesn't work with Repeaters or DataLists. Each of these controls inherit their respective "DataSource" and "DataBind" methods from different classes. Someone on another forum that I implement an interface, but I'm not sure how to make that work either.
The GridView, Datalist and Repeater get their respective "DataBind" methods from BaseDataBoundControl, BaseDataList, and Repeater classes. How would I go about creating a single interface to tie them all together? Or am I better off just using 3 overloads for this method?
Now i want to do search, sorting & Paging in the GridView with out Postback of the Page & with out hitting the DataBase when do Paging or searching in GridView.
error "ObjectDataSource 'ObjectDataSourceCaseDetails' could not find a non-generic method". I have an update method and my ObjectDataSource is hooked up to the method in my BLL. review my code below
Now i can populate my gridview trough code by this: //gvwDiensten.DataSource = new BindingList<diensten>(dataManager.GetList<diensten>().ToList());But i would like to use an objectdatasource, so i created this:
[Code]....
</asp:ObjectDataSource>
But when running the page i get:
ObjectDataSource 'dsDiensten' could not find a non-generic method 'GetList' that has no parameters.
I try to update the detailview control. got this error messsage.
ObjectDataSource 'odsDetail' could not find a non-generic method 'Update' that has parameters: hospitalID, hospitalName, taxID, address1, address2, city, state, zip.
Most likely the later, I think. In my page I have a GridView, DatailsView, and the ODS. None of my commands work. For the Udate command I get a an error "ObjectDataSource 'ObjectDataSource1' could not find a non-generic method 'UpdateVirtual' that has parameters: name, notes, active, original_ident." For the Delete command I get "ObjectDataSource 'ObjectDataSource1' could not find a non-generic method 'DeleteVirtual' that has parameters: ident, original_ident." Yet the Insert command in the DetailsView works fine. Originally I've copied a file that performs virtually identical task, the only difference is a different database and the Select command. I had the Delete command working for for while but that one too broke. Can someone point out what I'm doing wring?
I am working in asp.net 3.5 page, where I want to bind a textbox with generic list data. And I have Previous & next button. Which will show the record in textbox.
I am trying to bind the gererist list type to GridView control but for some reason its just displaying "Member"(Object name) rather then the actuakl content inside object.Any Idea why?Below i have decleared a List Type Member:
I have a generic List which is populated with an object which has properties like FirstName, Surname etc.
If I bind a gridview to the list with autocompletecolumns = true, the Gridview displays the data in the List.
The code looks like:
[code]....
My question is:
How do I populate the DataKeyNames with the properties (FirstName, Surname) contained in the object that is contained in each element of the Generic List?
public DataTable GetBrokers(bool? hasImport=null) { SqlCommand cmd = new SqlCommand("usp_GetBrokers"); if (hasImport.HasValue) cmd.Parameters.AddWithValue("@hasImport", hasImport); return FillDataTable(cmd, "brokers"); }
When the form loads I get this error:
ObjectDataSource 'srcBrokers' could not find a non-generic method 'GetBrokers' that has no parameters.
Is it my optional parameter that is causing the problem? How can I workaround this? Is it possible to have optional parameters with declarative ASP.NET code?
I am binding dropdown list using Object data source. I got an error like this
"ObjectDataSource 'objDSStatus' could not find a non-generic method 'GetIssueAllowedStatusByCategoryIDStatusIDandUserType' that has parameters: IssueCategoryID."
My code is as follows .aspx
< asp:DropDownList ID="ddlStatus" runat="server" DataSourceID="objDSStatus" DataTextField="IssueStatusName" DataValueField="IssueStatusID"> < /asp:DropDownList> < asp:ObjectDataSource ID="objDSStatus" runat="server" TypeName="DA"></asp:ObjectDataSource> .cs private void Bind(int IssueCategoryID, int IssueStatusID, int UserType) { ddlStatus.Items.Clear(); objDSStatus.SelectMethod = "GetIssueAllowedStatusByCategoryIDStatusIDandUserType"; objDSStatus.SelectParameters.Clear(); objDSStatus.SelectParameters.Add("IssueCategoryID", IssueCategoryID.ToString()); objDSStatus.SelectParameters.Add("IssueStatusID", IssueStatusID.ToString()); objDSStatus.SelectParameters.Add("UserType", UserType.ToString()); objDSStatus.DataBind(); ddlStatus.DataBind(); } DA.cs public List<IssueStatus> GetIssueAllowedStatusByCategoryIDStatusIDandUserType(int IssueeCategoryID, int IssueStatusID, int UserType) { List<IssueStatus> issueStatusList = new List<IssueStatus>(); }
I'm a starting C# programmer and I'm experiencing the following problem.I've created a dataset in Visual Studio With a table for persons making use of two table adapters, one for selecting all persons and one for selecting one person at a time filtered by the personID (Guid). This is a seperate project of my solution. After that I created a new project for the Business Logic Layer
private PersonenTableAdapter personenAdapter = null; protected PersonenTableAdapter Adapter {get....} [System.ComponentModel.DataObjectMethodAttribute (System.ComponentModel.DataObjectMethodType.Select, true)] public DAL.Testdatabase.PersonenDataTable GetPersonen() {...} [System.ComponentModel.DataObjectMethodAttribute (System.ComponentModel.DataObjectMethodType.Select, false)] public DAL.Testdatabase.PersonenDataTable GetPersonenByID(Guid ID) {...} [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)] public bool updatePersoon(string Voornaam, string Achternaam, string Geslacht, string Adres, string Huisnr, string Postcode, string Plaats, string Telnr, string GSM, string BSN, DateTime? CreateDate, string CreatedBy, DateTime? LastModifiedDate, string LastModifiedBy, bool? Actief, DateTime? DatumInactief, Guid ID) {...} When issueing the Update method using a detailsview with an Objectdatasource i get the following error. ObjectDataSource 'ObjectDataSource1' could not find a non-generic method 'updatePersoon' that has parameters: Voornaam, Achternaam, Geslacht, Adres, HuisNr, Postcode, Plaats, Telnr, GSM, BSN, CreateDate, CreatedBy, LastModifiedDate, LastModifiedBy, Actief, DatumInactief, original_ID.
The problem is when I use Guid UserId = Guid.NewGuid ();.
In Table I UserId type: unique Therefore it does not work. If I use the UserId type: int working.
Error: ObjectDataSource 'ProductsOptimisticConcurrencyDataSource' could not find a non-generic method 'DeleteProduct' that has parameters: ID, UserId.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: ObjectDataSource 'ProductsOptimisticConcurrencyDataSource' could not find a non-generic method 'DeleteProduct' that has parameters: ID, UserId.
In one of the methods I'm using in my MVC app, there's a param that accepts a list collection of strings. If I have a string parameter, I can give it a default value of an empty string, but I cannot seem to give the list collection a default value of a new, empty list collection. I get the error that's beginning to seriously grate on my nerves about requiring a compile-time constant. getting the generic list to work with a default empty set?
I am getting error : ObjectDataSource 'ObjectDataSource1' could not find a non-generic method What would be the possible cause / solution for this error.This error is coming when call below method ObjectDataSource1.SelectMethod = "MethodName"// thr r some more code after that, although not much irrelevant en call Server.Transfer("NewPage.aspx", True);
I dont know what I have done but my add blog or news item functionality is broken. It works fine locally but not on the server (.net 3.5 mvc 2 I believe).
[Code]....
The interesting thing is the path P:Web_DevelopmentAHNDEVControllersAdministratorController.vb. This is my local path on my machine but not the
I have several custom classes that derive from a common base class so they share several members in common. I would like to be able to pass objecs from any of these three classes to a function that will "look at" common properties. However, it seems there is a catch 22 -- When I try to access a member (.FirstName) of the passed object, the computer reports an error that it thinks the member doesn't exist.
It seems to be a sort of contradiction -- since I didn't declare the type, the computer can't confirm existence, but it seems that it should have to take it on faith since the generic character of the type is specified by the code. Possibly there is something I don't know about that would fix this. I'm showing VB code for what I have so far. I went ahead and hardcoded an instance to confirm that the object exists and has the needed property. I commented out the line that had the code that resulted in the computer reporting an error.
public static T Sum<T>(this DataTable dt, string columnName) where T : IEnumerable<decimal>, IComparable<decimal>[code]....
It feels like i'm almost there, but not quite :/
Just trying to sum up either decimal or int values in a column in datatable. Currently getting a compile error, however think this is due to the incorrect generic constraint.
However, when I try to build the control I'm getting the error as shown in the subject. I've tried searching, and it seems the signature for the original function matches the one I have, and all other solutions I've seen uses the same signature.
I have built a WCF Service that is being consumed by a Silverlight app. At first I created one method that was very simple:
public String SfTest() { return "SF Test"; }
No poblem. My silverlight app references my service and displays "SF Test" in a textbox. Now I add a method to my wcf service like this:
public List<String> GetTest() { List<String> list = new List<string>(); String a = "a"; list.Add(a); String b = "b"; list.Add(b); return list; }
I update the reference to the service in my Silverlight app and the using statement in my xaml cs page throws an error like the service doesn't even exist although it is there. I am assuming the problem has to do with datatypes or serialization or something like that but it is driving me up the wall. Why can't I consume a simple generic list in my Silverlight app through the WCF service.
.I have a search page where I would search for an item and it would dispaly the results in a gridview...
I have allowed paging and set page size to 10..now I can see the 10 results in the first page and also see the page numbers at the bottom of gridview. But now when i click on the page 2, the method gridview_pageindexchanging is triggered but the result set is not dispalyed. My code is as below..
[code]....
i understand that the data is not binding in the GridView1_PageIndexChanging method..I do not know how can I make data bind..
