I'm going from VB to C#.
I have example in VB:
Dim myParams As New Collection
Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10)
par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value
myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3];
SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10);
par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value;
myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon 6 3706
So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so
am I correct in assuming that this is why you are using an array of the
collections?
"simon" wrote: I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
SqlParameterCollection[] myParams=new SqlParameterCollection[3];
A fixed array doesn't have a .Add method because it is "fixed".
You can do:
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10);
par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value;
replace
myParams.Add(par1); - - there is no ADD method ?
by
myParams[i] = par1; // where i is from the index (0 to 2 ) of yours fixed
array.
The best solution.
Replace:
SqlParameterCollection[] myParams=new SqlParameterCollection[3];
by
SqlParameterCollection myParams=new ArrayList();
then you can use
myParams.Add(par1); - now there is ADD method!!!
Gustavo.
"Brian Delahunty" <Br************@discussions.microsoft.com> wrote in
message news:F8**********************************@microsof t.com... So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so am I correct in assuming that this is why you are using an array of the collections?
"simon" wrote:
I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
this is a more elegant solution:
try this and let me know if it works.
public class MyComparer2 : IComparer
{
private SortedList mSortedList;
public SortedList SortedList
{
get{return mSortedList;}
set{mSortedList = value;}
}
int IComparer.Compare(Object x, Object y)
{
int keyLeft = (int) x;
int keyRight = (int) y;
return((new CaseInsensitiveComparer()).Compare(mSortedList[y],
mSortedList[x]));
}
}
public void test()
{
MyComparer2 comparer = new MyComparer2();
SortedList sortedList = new SortedList(comparer);
comparer.SortedList = sortedList;
sortedList.Add(1,3);
sortedList.Add(2,4);
sortedList.Add(3,2);
sortedList.Add(4,5);
sortedList.Add(5,1);
//Here we look for keys....
Console.WriteLine(sortedList[3]); // the return object is "2";
//The SortedList was dinamically sorted by the second column when the items
are loaded.
foreach(int i in sortedList.Keys)
Console.WriteLine("Index:" + sortedList.IndexOfKey(i) + " Key:" + i + "
Value:" + sortedList[i]);
//It should shows
//Index:1 Key: 5 Value: 1
//Index:2 Key: 3 Value: 2
//Index:3 Key: 1 Value: 3
//Index:4 Key: 2 Value: 4
//Index:5 Key: 4 Value: 5
}
Gustavo
"Franco, Gustavo" <gustavo_franco[REMOVEIT]@hotmail.com> wrote in message
news:Or****************@TK2MSFTNGP15.phx.gbl... SqlParameterCollection[] myParams=new SqlParameterCollection[3];
A fixed array doesn't have a .Add method because it is "fixed".
You can do:
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; replace myParams.Add(par1); - - there is no ADD method ? by myParams[i] = par1; // where i is from the index (0 to 2 ) of yours fixed array.
The best solution.
Replace: SqlParameterCollection[] myParams=new SqlParameterCollection[3]; by SqlParameterCollection myParams=new ArrayList(); then you can use myParams.Add(par1); - now there is ADD method!!!
Gustavo.
"Brian Delahunty" <Br************@discussions.microsoft.com> wrote in message news:F8**********************************@microsof t.com... So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so am I correct in assuming that this is why you are using an array of the collections?
"simon" wrote:
I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
Sorry wrong Post
Gustavo
"Franco, Gustavo" <gustavo_franco[REMOVEIT]@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl... this is a more elegant solution:
try this and let me know if it works.
public class MyComparer2 : IComparer { private SortedList mSortedList;
public SortedList SortedList { get{return mSortedList;} set{mSortedList = value;} }
int IComparer.Compare(Object x, Object y) { int keyLeft = (int) x; int keyRight = (int) y; return((new CaseInsensitiveComparer()).Compare(mSortedList[y], mSortedList[x])); } }
public void test() { MyComparer2 comparer = new MyComparer2(); SortedList sortedList = new SortedList(comparer); comparer.SortedList = sortedList;
sortedList.Add(1,3); sortedList.Add(2,4); sortedList.Add(3,2); sortedList.Add(4,5); sortedList.Add(5,1);
//Here we look for keys.... Console.WriteLine(sortedList[3]); // the return object is "2";
//The SortedList was dinamically sorted by the second column when the items are loaded. foreach(int i in sortedList.Keys) Console.WriteLine("Index:" + sortedList.IndexOfKey(i) + " Key:" + i + " Value:" + sortedList[i]);
//It should shows //Index:1 Key: 5 Value: 1 //Index:2 Key: 3 Value: 2 //Index:3 Key: 1 Value: 3 //Index:4 Key: 2 Value: 4 //Index:5 Key: 4 Value: 5 }
Gustavo
"Franco, Gustavo" <gustavo_franco[REMOVEIT]@hotmail.com> wrote in message news:Or****************@TK2MSFTNGP15.phx.gbl... SqlParameterCollection[] myParams=new SqlParameterCollection[3];
A fixed array doesn't have a .Add method because it is "fixed".
You can do:
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; replace myParams.Add(par1); - - there is no ADD method ? by myParams[i] = par1; // where i is from the index (0 to 2 ) of yours fixed array.
The best solution.
Replace: SqlParameterCollection[] myParams=new SqlParameterCollection[3]; by SqlParameterCollection myParams=new ArrayList(); then you can use myParams.Add(par1); - now there is ADD method!!!
Gustavo.
"Brian Delahunty" <Br************@discussions.microsoft.com> wrote in message news:F8**********************************@microsof t.com... So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so am I correct in assuming that this is why you are using an array of the collections?
"simon" wrote:
I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
Thank you Franco,
If I replace like you said
SqlParameterCollection myParams=new ArrayList();
I get an error:
"Cannot implicitly convert type 'System.Collections.ArrayList' to
'System.Data.SqlClient.SqlParameterCollection' "
Why?
But it works if I do:
ArrayList() myParams=new ArrayList();
Regards,Simon
"Franco, Gustavo" <gustavo_franco[REMOVEIT]@hotmail.com> wrote in message
news:Or****************@TK2MSFTNGP15.phx.gbl... SqlParameterCollection[] myParams=new SqlParameterCollection[3];
A fixed array doesn't have a .Add method because it is "fixed".
You can do:
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; replace myParams.Add(par1); - - there is no ADD method ? by myParams[i] = par1; // where i is from the index (0 to 2 ) of yours fixed array.
The best solution.
Replace: SqlParameterCollection[] myParams=new SqlParameterCollection[3]; by SqlParameterCollection myParams=new ArrayList(); then you can use myParams.Add(par1); - now there is ADD method!!!
Gustavo.
"Brian Delahunty" <Br************@discussions.microsoft.com> wrote in message news:F8**********************************@microsof t.com... So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so am I correct in assuming that this is why you are using an array of the collections?
"simon" wrote:
I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
Sorry it was a typo error.
I replied the email without analyze the code.
You have a problem there.
You are creating a fixed array with dimension 3 of collections
(SqlParameterCollection[] myParams=new SqlParameterCollection[3]). I guess
you did that because SqlParameterCollection doesn't have a default
constructors, but that doesn't mean you are creating an instance to
SqlParameterCollection, it just creates 3 pointers or references to
SqlParameterCollection objects;
Basically, I see you can't use SqlParameterCollection and it is used for
..net framework to return to you a collection of parameters from same another
method.
ArrayList myParams=new ArrayList();
SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10);
par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value;
myParams.Add(par1);
This is the code that you are looking for.
Why this doesn't work?
SqlParameterCollection myParams=new ArrayList();
SqlParameterCollection and ArrayList are two totally different classes, so
ArrayList can't be "cast" to SqlParameterCollection.
It is like having a square and a circle both having the same surface and
trying to fit the square inside the circle.
Gustavo
"simon" <si*********@stud-moderna.si> wrote in message
news:uz*************@TK2MSFTNGP09.phx.gbl... Thank you Franco,
If I replace like you said
SqlParameterCollection myParams=new ArrayList();
I get an error:
"Cannot implicitly convert type 'System.Collections.ArrayList' to 'System.Data.SqlClient.SqlParameterCollection' "
Why?
But it works if I do:
ArrayList() myParams=new ArrayList();
Regards,Simon
"Franco, Gustavo" <gustavo_franco[REMOVEIT]@hotmail.com> wrote in message news:Or****************@TK2MSFTNGP15.phx.gbl... SqlParameterCollection[] myParams=new SqlParameterCollection[3];
A fixed array doesn't have a .Add method because it is "fixed".
You can do:
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; replace myParams.Add(par1); - - there is no ADD method ? by myParams[i] = par1; // where i is from the index (0 to 2 ) of yours fixed array.
The best solution.
Replace: SqlParameterCollection[] myParams=new SqlParameterCollection[3]; by SqlParameterCollection myParams=new ArrayList(); then you can use myParams.Add(par1); - now there is ADD method!!!
Gustavo.
"Brian Delahunty" <Br************@discussions.microsoft.com> wrote in message news:F8**********************************@microsof t.com... So you want an array of collections? Any particular reason why?
SqlParamaterCollection does not have a publically available constructor so am I correct in assuming that this is why you are using an array of the collections?
"simon" wrote:
I'm going from VB to C#.
I have example in VB: Dim myParams As New Collection Dim par 1 as SqlParameter
par1 = New SqlParameter("@mediaId", SqlDbType.NVarChar, 10) par1.Value = lstMedia.Items(lstMedia.SelectedIndex).Value myParams.Add(par1)
I would like to do the similar in C#:
SqlParameterCollection[] myParams=new SqlParameterCollection[3]; SqlParameter par1;
par1 = new SqlParameter("@mediaId", SqlDbType.NVarChar, 10); par1.Value = lstMedia.Items[lstMedia.SelectedIndex].Value; myParams.Add(par1); - - there is no ADD method ?
Any solution?
Regards,Simon
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