Not Marked Abstract Or Extern?
Jun 30, 2010[Code]....
Im getting the error message:'User.Id.get' must declare a body because it is not marked abstract or externWhat does this mean? What am I doing wrong?
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public partial class _Default : System.Web.UI.Page
{
Helper helper = new Helper();
protected void Page_Load(object sender, EventArgs e)[code]....
It's working fine but I now want to move my class files (Helper.cs for example) to the app_code folder but when I run the application I get error on
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must declare a body because it is not marked abstract or extern,
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Feb 24, 2011I am using an EntityDataSource with a FormView on VB.NET application. The FormView contains an AjaxControlToolKit TabContains with multiple tabs. Due to the fact that each tab is a naming container, Bind doesn't work properly for updating values (as discovered from reading other posts on stackoverflow). I instead have to declare UpdateParameters on my EntityDataSource. Example markup is as follows:
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[Code]....
This works great, until a customer is edited and their name is set to nothing (assuming in this case, a null name is allowed). The Name UpdateParameter is set to Null but the ObjectStateEntry is not set to modified for Null properties, even if previously the Entity had a value specified. As long as the name is changed to something other than Null, everything is updated correctly.
I found a workaround by putting the following code in the Updating event of the EntityDataSource.
Dim ose As ObjectStateEntry = context.ObjectStateManager.GetObjectStateEntry(action)
For Each p As Parameter In eds.UpdateParameters
ose.SetModifiedProperty(p.Name)
Next
This makes sure that each property in the UpdateParameters has its state set to modified. It works, but it seems like a hack and I can see it causing problems down the road. Is there anything else I could do?
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[URL]
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Cannot create instance of abstract class .
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
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m_objFont = m_objRange.Font;
m_objFont.Bold=true;
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object[,] objData = new Object[100,3];
Random rdm = new Random((int)DateTime.Now.Ticks);
double nOrderAmt, nTax;
for(int r=0;r<100;r++)
{
objData[r,0] = "ORD" + r.ToString("0000");
nOrderAmt = rdm.Next(1000);
objData[r,1] = nOrderAmt.ToString("c");
nTax = nOrderAmt*0.07;
objData[r,2] = nTax.ToString("c");
}
m_objRange = m_objSheet.get_Range("A2", m_objOpt);
m_objRange = m_objRange.get_Resize(100,3);
m_objRange.Value = objData;
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m_objExcel.Quit();
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[code]...
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For DAL layer:
Creating an abstract class that will define all database manipulation methods to implement.
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public abstract class Entity
{
public virtual Guid ID {get; set;}
public virtual string Name {get;set;}
public virtual User OwnerUser {get; set;}
}
public class User : Entity
{
public virtual string UserName {get; set;}
}
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<class entity-name="Entity" name="Entity" abstract="true">
<id name="ID" type="guid">
<generator class="guid.comb"/>
</id>
<property name="Name" />
<many-to-one name="OwnerUser" column="ID" entity-name="User" />........
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