Forms Data Controls :: Can Bind Any Type Of System.Collection To DataSource Property Of A DataGrid
Nov 11, 2010can we bind any type of System.Collection to DataSource property of a DataGrid ?
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Forms Data Controls :: Datagrid Bind To Indexed Property?
Aug 5, 2010I'm trying to bind indexed property to the datagrid control.
Here is my class which has a normal property ('p0') and 2 indexed properties ('p1' & 'p2'). I need to bind p1 and p2 as column in the datagrid.
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Forms Data Controls :: Items Collection Cannot Be Modified When The DataSource Property Is Set
Dec 14, 2010[code]....
Above is my select query result. "Select Groupname from table". Now i want to add dynamit row in table which display like follows.
[code]....
so that i can display the combobox with default value '-Select-'. I tried combobox.item.insert(0.'"Select") but it gives error.
"Items collection cannot be modified when the DataSource property is set."
so I am trying to add dynamically into table.
Forms Data Controls :: Items Collection Cannot Be Modified When The DataSource Property Is Set?
Feb 17, 2010I got 2 listboxes in a window form, one on left and one on right. The 1st listbox have some items while the 2nd listbox is empty. Also there are 2 buttons between the 2 listboxes which used to move item from/to the 1st and 2nd listbox.My problem here is that after I bind the data to the 1st listbox (from a dataTable, using DisplayMember and ValueMember) , and I try to move 1 of the item from this 1st listbox to the 2nd listbox and I want that the selected item is also removed from the 1st listbox by:
lbMembers2.Items. Add(lbMembers1. Text);
lbMembers1.Items. Remove(lbMembers 1.Text);
But the selected item is not removed from the 1st listbox.Also on deselect button when i move item from 2nd listbox to 1st listbox,it displays error message "Items collection cannot be modified when the DataSource property is set."
Forms Data Controls :: Unable To Bind Dataset To Repeater/'System.Char' Does Not Contain A Property With The Name 'hotelname'
Dec 19, 2010i have a page for search.and there is abutton when user click on it.result get in dataset.
[Code]....
i have repeater in itemtemplate of repeater i put table and there is lable that i want show hotelname on it.but it has error.my code is:
[Code]....
the error is:DataBinding: 'System.Char' does not contain a property with the name 'hotelname'.
Forms Data Controls :: Bind A Collection Within A Collection To A Gridview?
Jul 26, 2010I have a list of objects that I want to bind to a gridview. Creating that list and binding it works fine for most of the public properties in that list.
There are some objects contained in each of those objects... for instance there is an Address object.
object.Address.Line1;
object.Address.Line2;
When I bind this to my gridview, I have no issues with stuff like object.DateRegistered, but how can I access things like object.Address.WhatEverProperty? I always get this error:
"A field or property with the name 'xxx.xxxx' was not found on the selected data source."
DataSource Controls :: Unable To Cast Object Of Type '<TakeIterator>d__3a`1[System.Char]' To Type 'System.Collections.IList'
Jan 2, 2010I want to do paging the API Membership without using the datacontrols, but I get this error "Unable to cast object of type '<TakeIterator>d__3a`1[System.Char]' to type 'System.Collections.IList'." when I do this,
[code]....
DataSource Controls :: Unable To Cast Object Of Type 'System.DBNull' To Type 'System.String'
May 28, 2010I am trying to write a table output from SQL database to a gridview/ Data List through an Object Data Source. I am a new starter and your help will be useful.
public List<Staff> GetStaff()
cmd.CommandType =
SqlConnection con =
new
SqlConnection(connectionstring);SqlCommand cmd =
new
[code]...
DataSource Controls :: DBType Error Type 'System.Web.UI.WebControls.Parameter' Does Not Have A Public Property Named 'DbType'
Feb 28, 2010I had to format my hard disk and reinstall the Visual Studio 2005 Enterprise and SQL 2005 Standardprograms.
While my program worked perfectly before and still works ok on my second computer, I get the following error message on the formated computer:
Parser Error Message: Type 'System.Web.UI.WebControls.Parameter' does not have a public property named 'DbType'.
Source Error:
Line 82: <asp:Parameter Name="Olho" Type="String" />
Line 83: <asp:Parameter Name="image" Type="String" />
Line 84: <asp:Parameter DbType="Date" Name="inicio" />
Line 85: <asp:Parameter DbType="Date" Name="termino" />
Line 86: <asp:Parameter Name="pageId" Type="Int32" />
Source File: /0_oserigrafico/Default.aspx Line: 84
In this case I use a datasource control for a datalist and the parameter list is being built ba the system.
The DBType is created for the smalldatetime feild
how do I add the property named 'DbType'.
C# - Bind Datagrid To Collection?
Jan 20, 2010how do I bind a DataGrid to a collection? (e.g : List ). i used this :
Datagrid dg = new Datagrid();
dg.DataSource = myCollection;
dg.DataBind();
but after this, the Datagrid still doesn't display the data from the collection.
Custom Server Controls :: Creating .NET UserControl With Collection-type Property?
Feb 21, 2011How can I create a UserControl with a collection-type property which has a collection editor?
I've a CompositeControl with an ArrayList-type property which has CollectionEditor-type designer. You can see this property on Properties window with a "..." button which launches a collection editor. This works fine and all but I want to apply the same to a UserControl and I've couldn't manage to pull it off so far. I've done the same thing what I've done with my CompositeControl but the property either doesn't even show on Properties window of the UserControl or shows as a single value property with no "..." editor button.
This is what I've done with CompositeControl:
[Code]....
Fluent Nhibernate System.ApplicationException : For Property 'Id' Expected '1' Of Type 'System.Int32' But Got '2' Of Type 'System.Int32'
Jul 6, 2010I am writing unit tests for fluent Nhibernate, when I run the test in isloation it passes, but when I run multiple tests. or run the test more than once it starts failing with the message below System.ApplicationException : For property 'Id' expected '1' of type 'System.Int32' but got '2' of type 'System.Int32'
[TextFixture]
public void Can_Correctly_Map_Entity()
{
new PersistenceSpecification<UserProfile>(Session)
.CheckProperty(c => c.Id, 1)
.CheckProperty(c => c.UserName, "user")
.CheckProperty(c => c.Address1, "Address1")
.CheckProperty(c => c.Address2, "Address2")
}
Forms Data Controls :: Unable To Cast Object Of Type 'System.Web.UI.LiteralControl' To Type 'System.Web.UI.WebControls.TextBox'
Jan 5, 2010Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.TextBox'.
[code]....
Forms Data Controls :: Unable To Cast Object Of Type 'System.DBNull' To Type 'System.String'.
Oct 1, 2010Basically, what I did is that: I have a table in SQL database and some of data fields allow null. I built Objectdatasource through dataset. When I built update page using dataset. It generate the following error before showing the update page correctly. It seems I have issue to retrieve the null value from the database through using objectdatasource through dataset. Any suggestions?An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code
View 6 RepliesForms Data Controls :: >>Object Of Type 'System.Boolean' Cannot Be Converted To Type 'System.Byte[]'?
Sep 30, 2010I am trying to upload a picture into database using FormView insertItemTemplate. FormView is bounded by objectdatasource.To upload, I placed FileUpload control inside insertItemTemplate.In table the dataType is image.Error:Object of type 'System.Boolean' cannot be converted to type 'System.Byte[]'.
View 3 RepliesForms Data Controls :: Datasource Of Gridview Is Of Type System.Web.Security.MembershipUserCollection?
Jan 3, 2010I have been using Grid View sorting with images already but this case is slightly different.
I was going through the tutorial here [URL] pages there is a grid and i tried to implement sorting with images to this grid but i failed.
Here is my c# code
[Code]....
aspx page
[Code]....
The problem here is the datasource of Gridview is of type System.Web.Security.MembershipUserCollection
I am not sure how to convert or assign System.Web.Security.MembershipUserCollection datasource to a dataset or datatable/DataView and sort it.
DataSource Controls :: System.Security.SecurityException: Request For The Permission Of Type "System.Data.SqlClient.SqlC"
Jul 12, 2010in my web project i got an error that i couldnt find any solution. the error says: System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. when i work in local there were no problem i put files to our server and i changed the database also. when i work in server in web application in Default.aspx i can connect db and get values without any problem using my DataLibrary
BUT the problem in my web service i also use my DataLibrary in webservice but when i try to run a method in web service it gives me the error which is : System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
my new db connection is
strConnectionString = "Data Source=OURSERVERNAME\SQLEXPRESS;Initial Catalog=DoveTR;Persist Security Info=True;User ID=sa;Password=123456789;Pooling=True";
DataSource Controls :: An Unhandled Exception Of Type 'System.InvalidOperationException' Occurred In System.Xml.dll
Jun 8, 2010An unhandled exception of type 'System.InvalidOperationException' occurred in System.Xml.dll
View 1 RepliesDataSource Controls :: The Null Value Cannot Be Assigned To A Member With Type System.Decimal Which Is A Non-nullable Value Type
Dec 22, 2010I am making a website to store invoices so i can mail them to clients. So i got a table for clients, invoices and one with invoice products/services. When an invoice has no products/services added to them and it returns null i get the error "the null value cannot be assigned to a member with type System.Decimal which is a non-nullable value type."
I just started with linq. Before i always used mysql. Mostly i just had to call data from 1 table so forgive me if my linq query isn't really correct.
Dim invoices = From i In db.invoices _
Group Join p In db.products On i.id Equals p.invoiceId Into invoiceProducts = Group _
Select New With {i.client.naam, i.titel, (From iP In invoiceProducts Select iP.prijs).Sum}
i show the client's name, the title of the invoice and the total amount the clients will need to pay for products and services.
DataSource Controls :: When Should Use The Type Property Or Dbtype With Object Data Source
Apr 24, 2010I'm trying to understand when to use the type property and when to use the dbtype property. I looked online but couldn't find a good article that said when and why.
View 3 RepliesDataSource Controls :: Type 'System.Data.OleDb.OleDbCommand' Is Not Defined?
May 7, 2010i am trying to export a table from access database to excel sheet but i am facing error saying Type 'System.Data.OleDb.OleDbCommand' is not defined.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim AccessConn As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Documents and SettingsUSERDesktopD0605data.accdb")
AccessConn.Open()
'New sheet in Workbook
Dim AccessCommand As New System.Data.OleDb.OleDbCommand("SELECT * INTO [Excel 8.0;DATABASE=C:Documents and SettingsUSERDesktopD0605data1.xlsx;HDR=NO;].[Sheet1] from [Table1]", AccessConn)
AccessCommand.ExecuteNonQuery()
AccessConn.Close()
End Sub
End Class
C# - Cannot Implicitly Convert Type System.Collection.Generic.IEnumberable
Mar 8, 2010I'm receiving this error in my Linq statement ---
Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'hcgames.ObjectClasses.ShoppingCart.ShoppingCartCartAddon'. An explicit conversion exists (are you missing a cast?)
From this query
ShoppingCartItems items = Cart.GetAllItems();
ShoppingCartCartAddons addons = Cart.GetAllAddons();
var stuff = from x in items
select new ShoppingCartItem()
{
ProductID = x.ProductID,
Quantity = x.Quantity,
Name = x.Name,
Price = x.Price,
Weight = x.Weight,
Addons = (from y in addons
where y.ShoppingCartItemID == x.ID
select y)
};
C# - Bind Non-property To Datagrid Column DataField?
Mar 31, 2011Let's say I have a DataGrid that looks something like:
<asp:DataGrid ID="SomeDataGrid"
runat="server">
<Columns>
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="Data"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
In this Grid, I set the datasource to some collection that contains a public property called "Data" and do a databind(). Every works as expected.Now let's say I want to set the DataField attribute of the column to a public member, or a property, or some other thing I've computed. What is the easiest way to go about this without creating intermediate objects or adding public properties to the objects in the collection?So what I want to do is something like:
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="someMethod()"></asp:BoundColumn
DataSource Controls :: Unable To Cast Object Of Type 'System.Data.Linq.DataQuery?
Mar 31, 2010I wanted to delete the record from data but I receive this error "Unable to cast object of type 'System.Data.Linq.DataQuery`1[training_eval.Course]' to type 'training_eval.Course'.
Dim eval_sure = From ev In db.Evaluates Where ev.course_id = indexcourse Select ev.course_id
Dim del_course = From c In db.Courses Where c.Course_id = indexcourse
db.Courses.DeleteOnSubmit(del_course)
db.SubmitChanges()
DataSource Controls :: Error - Cannot Implicitly Convert Type 'string' To 'System.Data.DbType
Apr 27, 2010I am getting error "Cannot implicitly convert type 'string' to 'System.Data.DbType".
When I am passing Stored procedure parameter it expets 'System.Data.DbType" and the Data member is declared as a string.
