Method not found: Test(System.Nullable`1, System.Nullable`1, System.Nullable`1 ByRef)'.

Question

1.20/5 (2 votes)

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.NET4.5

We used to generate DAl using code-smith .nettiers, so I made a custom stored procedural that takes two input parameters and returns an output one, the genrated method header looks like:

C#

public DataSet Test(System.Int32? p1, System.Int32? p2, ref System.Int32? p3)

i need to pass this dataset to a gridview,so what i did

C#

int start = 0;
int length = 2;
int? count = 0;

public void BindGrid() 
    {            
      DataSet ds = DataRepository.TableNameProvider.Test(start, length, ref count);
      TestGrid.VirtualItemCount =(int) count;
      TestGrid.DataSource = ds;
      TestGrid.DataBind();

then i call BindGrid() method into Page_Load(object sender, EventArgs e)
i got that error when calling BindGrid() method < Method not found: 'System.Data.DataSet ProjectName.Data.Bases.TableNameProviderBaseCore.Test(System.Nullable`1<int32>, System.Nullable`1<int32>, System.Nullable`1<int32> ByRef)'. >

Stack Trace:

[MissingMethodException: Method not found: 'System.Data.DataSet MSAD.Data.Bases.TableNameProviderBaseCore.Test(System.Nullable`1<int32>, System.Nullable`1<int32>, System.Nullable`1<int32> ByRef)'.]
MSADSP2013.test.test.BindGrid() +0
MSADSP2013.test.test.Page_Load(Object sender, EventArgs e) +166
System.Web.UI.Control.LoadRecursive() +71
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Control.LoadRecursive() +190
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178

Posted 29-Jun-13 17:26pm

Member 10103122

Updated 30-Jun-13 3:55am

v3

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Sampath Lokuge 30-Jun-13 8:09am

I have updated the solution plz check that.

2 solutions

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karim_ms · Answer 1 · 2013-11-21T06:00:00

This may be a very late response but in .NET environment, when
int? x
is declared, if direct value cast or uses encountered down the track e.g.
x.ToString()
would cause this issue. Basically Nullable types do not provide Get method by default. If you require the value, you have to take one extra step which is x.Value as Get method is implemented here.

Thanks.

Sampath Lokuge · Answer 2 · 2013-06-29T21:14:00

For better solution you have to put whole code snippet.I mean the place which your Test method is being called.

May be your problem is when you called Test method,the object that Test method is called not instantiated (or Created) before that.So Check that.

Below mentioned link also may be help for you (may be similar kind of situation.But code was VB).
Check this out : Method not found: 'System.Data.DataSet PowerPay.DAL.Applications.GetDeliveryDelayDays()'.[^]

UPDATE

You have to check for null of DataRepository.TableNameProvider before calling the Test method.That may be the reason. Try and let me know.

As is below :

C#

if (DataRepository.TableNameProvider !=null)
{
      DataSet ds = DataRepository.TableNameProvider.Test(start, length, ref count);
      TestGrid.VirtualItemCount =(int) count;
      TestGrid.DataSource = ds;
      TestGrid.DataBind();
}

UPDATE 2

May be your problem is this : your Test method accepts all parameters are as nullable.But when you pass the values into it your first 2 parameters are seems non null.So change those param also as nullable is as below and try agin.

C#

int? start = 0;
int? length = 2;
int? count = 0;

I hope this will help to you.

Method not found: Test(System.Nullable`1, System.Nullable`1, System.Nullable`1 ByRef)'.

2 solutions

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Solution 1

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