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hiiii every body can any body help me with this problem
i am using a memory profiler to enhance my code
i discover that an object from (OleDBPermission) is creadted and not removed(disposed) even when i close the connection and Call ReleaseObjectPool what can i do else to release this object please help me
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Permission objects are used by the Framework to protect users and machines and may be instantiated to authorize certain operations. Depending on how certain permissions objects are used, they may remain ni memory until the AppDomain is shutdown.
You should read about Code Access Security - an integral part of the .NET Framework - on MSDN. Read Code Access Security[^] in the .NET Framework SDK.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Hi!Dear,
I just want to register in the website
www.c-sharpcorner.com. but after I filled in my email address and my nickname,it never sent password to my email box.I am my email address is correct.my email address is:libingmomer@163.com,passward is "libing". I dont know where is the problem.Maybe it treat my email address as a invalid one.
Now I prefer my honoured you can register a nickname and a password on this website for me to login.
Thanks!
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What ever that is you are smoking I suggest you stop.
Do you want to know more?
Vogon Building and Loan advise that your planet is at risk if you do not keep up repayments on any mortgage secured upon it. Please remember that the force of gravity can go up as well as down.
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Hi!Colin Angus Mackay,
Maybe you are wrong.What I said is the truth.I had asked one of my friends to help me out of this matter.Maybe I have done something wrong here,but I was never intent to that.
Thanks!
momer
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This is brilliant. It's definately made my day.
Christian
I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer
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Hi!Christian,
Nice to know you here.I think you must be a warmhearted person.But thanks to my friend,my problem have been worked out yesterday.
The codeproject is the most kindly one in all the website I have ever known.I love this codeproject and I love you!
momer
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1. Why are you posting registration problems to another site here? Why not try to contact the owner of the site your having problems with?
2. Nice of you to post your account name and password for us to use! Like Colin asked... What the hell are you smoking?!
momer wrote:
I dont know where is the problem.
A short between the keyboard and ground, obviously...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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How do I setup a dropdownlist for (***Type***) in editmode. Any starters. Any sites.
I would appreciate any help.
<itemtemplate>
This dropdownlist works in browse | | | ***Type:**** | <asp:dropdownlist autopostback="True" id="ddlCOMMANDTYPE" datasource="<%# BindTBCOMMANDTYPE() %>"
mode.="" selectedindex="<%# GetSelectedIndexCOMMANDTYPE(DataBinder.Eval(Container.DataItem, "CT_REF").ToString())%>" runat="server"
="" datatextfield="CT_DESCRIPTION" datavaluefield="CT_REF"> | | Content: | <%# Convert.ToString(DataBinder.Eval(Container.DataItem, "CM_CONTENT"))%> |
<asp:linkbutton id="EditButton" text="Edit" commandname="Edit" runat="server">
<edititemtemplate>
| | | ***Type:**** | | Content: | <asp:textbox id="CM_CONTENTTextBox" text="<%# DataBinder.Eval(Container.DataItem, "CM_CONTENT") %>" runat="server"> |
<asp:linkbutton id="UpdateButton" text="Update" commandname="Update" runat="server">
<asp:linkbutton id="DeleteButton" text="Delete" commandname="Delete" runat="server">
<asp:linkbutton id="CancelButton" text="Cancel" commandname="Cancel" runat="server">
<asp:linkbutton id="Prev" text="<< Previous" onclick="Page_DataList" runat="server">
<asp:linkbutton id="Next" text="Next >>" onclick="Page_DataList" runat="server">
////////////////////////////////////////////////////////////////
public int GetSelectedIndexCOMMANDTYPE (string CT_REF)
{
int iLoop;
DataTable dt = ddlDataSet1.Tables["ddlCOMMANDTYPE"];
for (iLoop=0; iLoop < dt.Rows.Count; iLoop++)
{
string srow = dt.Rows[iLoop]["CT_REF"].ToString();
if(srow == CT_REF)
{
return iLoop;
}
};
return 0;
}
//////////////////////////////////////////////////////////////////
public DataSet BindTBCOMMANDTYPE()
{
OdbcConnection myConnection = new OdbcConnection("DSN=POS;UID=system;PWD=system");
// Populate the ddlDataSet1
myConnection.Open();
const string strSQLDDL = @"SELECT CT_REF, CT_DESCRIPTION FROM TBCOMMANDTYPE ORDER BY CT_REF";
OdbcDataAdapter myDataAdapter = new OdbcDataAdapter(strSQLDDL, myConnection);
ddlDataSet1.Clear();
myDataAdapter.Fill(ddlDataSet1, "ddlCOMMANDTYPE");
myDataAdapter.Dispose();
myDataAdapter = null;
myConnection.Close();
return ddlDataSet1;
}
//***********************************************************************
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Your question belongs in the ASP.NET forum.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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I've put together a component that, upon a certain action, a window opens. I am opening that window directly below the component, aligned with the bottom edge. It works great and exactly as I need it to...until the UC form is contained within a mdicontainer.
I am currently determining the position to place the window by looking at the position of the current component and its parents. Apparently with mdicontainers, the child form is a parent and I cannot get the appropriate screen position because the application form creates an unknown offset.
private void GetRefLocation(Control controlIn, ref int top, ref int left)<br />
{<br />
<br />
Control controlParent = controlIn.Parent;<br />
Form parent = this.FindForm();<br />
<br />
if (parent == controlParent)<br />
{<br />
top += parent.Top;<br />
left += parent.Left;<br />
}<br />
else<br />
{<br />
int addHeight = 0;<br />
System.Type a = controlParent.GetType();<br />
string b = controlParent.GetType().FullName;<br />
if (controlParent.GetType().FullName == "System.Windows.Forms.Panel")<br />
addHeight = ((Panel)controlParent).BorderStyle == BorderStyle.None ? 0 : (((Panel)controlParent).BorderStyle == BorderStyle.FixedSingle ? 1 : 2);<br />
<br />
top += controlParent.Top + addHeight;<br />
left += controlParent.Left;<br />
GetRefLocation(controlParent, ref top, ref left);<br />
}<br />
}
What do I really need to do to determine the position within the screen? I followed a couple trails involving GDI but I never found a way that I can set component.Location based on the screen position, let alone position of another component.
Thanks
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dbetting wrote:
What do I really need to do to determine the position within the screen?
Use the PointToScreen and PointToClient methods of Control class to convert a location from client coordinates to screen coordinates respectively the other way round.
www.troschuetz.de
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Thank you very much. With the code below, I eliminated the entire routine previously shown. I suspected it would end up being something simple.
Point newPos = PointToScreen(this.Location);<br />
newPos.Y = newPos.Y - this.Top + this.Height;<br />
newPos.X = newPos.X - this.Left;<br />
popup.Location = newPos;
Once I had screen position, all I had to do is offset the position by the local form position and it seems to pass the test regardless of depth of the User Controls on the form.
Thanks.
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Sorry for the newbie question! I'm trying to write hex values into a file.
I started out using a streamwriter and writing a string:
"\x48\x41\x53\x48\x0D\x0A\xff\x00\x00\x01"
This worked fine, except that when looking at the output file in a hexeditor I got
48 41 53 48 0D 0A C3 BF 00 00 01
Where is should have read FF there was C3 BF!!
The same happens if I create an array and write that using a binary writer, ie:
char[] temp = new char[] {'\x48','\x41','\x53','\x48','\x0D','\x0A','\xFF','\x00','\x02','\x00','\x00','\x00','\x01','\x00','\x00','\x00'};
The only way I can do it is to convert all the hex to decimal and write it that way with a binarywriter:
byte[] temp = new byte[] {72,65,83,72,13,10,255,0,2,0,0,0,1,0,0,0};
But this is a pain, can anyone tell me how I SHOULD be doing this.
Thanks, in advance,
Chris
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Any TextWriter or TextReader uses an Encoding to encode and decode bytes from and to text. More than likely it is the encoding that decided there was a better alternative, though that's just an educated guess.
You might consider using the ASCIIEncoding which is always single-byte characters, so 0xC3 0xBF isn't replaced with a "more suitable" character.
What are you writing binary characters to a file, though? If you are just trying to write the equivalent Unicode characters, you can specify Unicode in C# using \uXXXX.
Otherwise, you could use a Stream to write the entire binary file, and when you need to write text use the Encoding you find appropriate, like ASCIIEncoding or UTF8Encoding (which is nice, since for the ASCII character set (first 128 bits) it looks like an ASCII file but can handle other characters sets like Unicode without using a codepage).
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Heath,
Thanks for that comprehensive reply! I have tried changing the encoding method, but to no avail it changes the output - but it still isn't right!
Here is the code I am currently playing with:
FileStream outputFile = new FileStream(destination, FileMode.CreateNew);
BinaryWriter outputBin = new BinaryWriter(outputFile,System.Text.Encoding.ASCII);
char[] temp = new char[] {'\x48','\x41','\x53','\x48','\x0D','\x0A','\xFF','\x00','\x02','\x00','\x00','\x00','\x01','\x00','\x00','\x00'};
outputBin.Write(temp);
The ouput it produces is:
ASCII:
48 41 53 48 0D 0A 3F 00 02 00 00 00 01 00 00 00
Which is closer to what I want (in that FF is replaced with only 1 char not 2 as previously), but is still wrong.
I tried unicode as well, just for giggles, and that did work and produced an FF as required. Unfortunately the file I wish to write is to be read by another piece of software which requires a very specific format(not unicode).
Been at this hours now - brain melting....
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I definitely think it's the encoding, especially if it worked under Unicode. If you're trying to write binary data, though, you can just use the FileStream itself instead of a BinaryWriter. You also should take a look at the using statement to make sure the streams are disposed, like so:
using (FileStream file = new FileStream(...))
{
}Sorry, just something I really think people should do when working with objects with ties to native resources.
Anyway, anything over 0x7f using encodings like UTF8 mean that 2 bytes should be used. IIRC, some codepages work this way, too. So, make sure you're using the right codepage (you can pass this to the Encoding class you need).
If I were you - and I do this a lot - dig through the IL using ildasm.exe or a decompiler like ".NET Reflector" to trace through the code itself to see what happens when you call BinaryWriter.Write or BinaryWriter.WriteLine and see how the Encoding class is used. Then see how the Encoding class derivative you're using works.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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This is my query for my dropdownlist
select PD_REF, PD_DIRECTION FROM TBPARAMDIRECTION
PD_REF PD_DESCRIPTION
---------- ------------------------------
0 ParamUnknown
1 ParamInput
2 ParamOutput
3 ParamInputOutput
4 ParamReturnValue
This is my main query for my main the datalist is
SELECT CM_REF, PM_INDEX, PM_NAME, PM_DESCRIPTION,
PM_TYPE, PM_CONTENT, PM_DIRECTION, PM_LENGTH FROM TBPARAMETERS
How can I display the dropdownlist.
Can someone help me with the query.
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Are you asking how to bind this data to a ComboBox? Use a DataAdapter implementation (like SqlDataAdapter, if you're querying a SQL Server RDBMS) and assign the resultant DataSet to ComboBox.DataSource:
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "SELECT CM_REF, PM_INDEX, PM_NAME, PM_DESCRIPTION" +
"PM_TYPE, PM_CONTENT, PM_DIRECTION, PM_LENGTH FROM TBPARAMETERS";
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
try
{
adapter.Fill(ds);
}
catch (Exception ex)
{
}
if (ds.Tables.Length == 1)
{
comboBox1.DataMember = ds.Tables[0].TableName;
comboBox1.DataSource = ds;
}
}You could also just assign ds.Tables[0] to DataSource, but that can be pretty inflexible in scenarios when you want to related data from the same DataSet in other controls on the form.
If this is not what you're asking, please clarify.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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This is my query for my dropdownlist
select PD_REF, PD_DIRECTION FROM TBPARAMDIRECTION
PD_REF PD_DESCRIPTION
---------- ------------------------------
0 ParamUnknown
1 ParamInput
2 ParamOutput
3 ParamInputOutput
4 ParamReturnValue
This is my main query for my main the datalist is
SELECT CM_REF, PM_INDEX, PM_NAME, PM_DESCRIPTION,
PM_TYPE, PM_CONTENT, PM_DIRECTION, PM_LENGTH FROM TBPARAMETERS
I must include something in my main grid query to link the two?
But What?
How can I display the dropdownlist.
Can someone help me with the query.
How can I display my dropdownlist also?
This is my query for my dropdownlist
select PD_REF, PD_DIRECTION FROM TBPARAMDIRECTION
PD_REF PD_DESCRIPTION
---------- ------------------------------
0 ParamUnknown
1 ParamInput
2 ParamOutput
3 ParamInputOutput
4 ParamReturnValue
This is my main query for my main the datalist is
SELECT CM_REF, PM_INDEX, PM_NAME, PM_DESCRIPTION,
PM_TYPE, PM_CONTENT, PM_DIRECTION, PM_LENGTH FROM TBPARAMETERS
I must include something in my main grid query to link the two?
But What?
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Wait, so you want a ComboBox embedded in a DataGrid? You really need to explain yourself a little better and use actual class names, since "dropdownlist" isn't a control, nor is "grid". I can only assume you mean a ComboBox and a DataGrid.
Search for "ComboBox" and "DataGrid" in a search engine. Several people have written such DataGridColumnStyle-derivatives.
If you want to "link" (again, please use technical terms, like "relate" as in "relational data") two DataGrids together, you have to establish a DataRelation between two DataTables in the same DataSet. The easiest way to do this is to create a typed DataSet in Visual Studio. You can do this by right-clicking on your project (or project folder), select Add -> Add New Item and select DataSet. Add two elements and some fields that match your tables. Using the designer right-click and add a new relation between a child and parent key. You can also do this programmatically using a non-typed DataSet by adding DataTables, then DataColumns to each table, then a DataRelation (which includes an example in the .NET Framework SDK documentation) between your DataColumns from the two different tables.
To fill this DataSet, make sure that you use DataAdapter.Fill(DataSet) and add DataAdapter.TableMappingss for the result set names and your actual tables names (since the result set names are, by default, "Table", "Table1", "Table2", etc.).
Finally, for each DataGrid for which you want to relate the data, set the DataMember property of the parent relationship to the table name of the parent table (as string). For the second, child DataGrid, set the DataMember to the "parenttable.relationship" name.
Finally, assign the DataSet as the DataSource for both. Now when you select a row in the parent DataGrid, the related records in the child DataGrid are displayed.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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I was using this successfully at work last week to document C# applications. So I thought I'd try it at home.
It generates the HTML files OK but the .chm file refuses to display pages "Page cannot be displayed" error. Any ideas?
At work I was using Visual Studio 2003 on Windows Server 2003 running inside MS Virtual PC 2004 on a Win 2k SP4 box.
Here I've just tried it with VS 2003 on Win 2k SP4. I also have an XP Pro box but I've not tried it there yet.
Kevin
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NDoc 1.2 is very buggy. Version 1.3 beta is less buggy. http://ndoc.sourceforge.net/[^]
Do you want to know more?
Vogon Building and Loan advise that your planet is at risk if you do not keep up repayments on any mortgage secured upon it. Please remember that the force of gravity can go up as well as down.
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