Re: DATA GRID sorting problem. - C# Discussion Boards

Sathesh Sakthivel30-May-07 2:13

30-May-07 2:13

Refelction is the mechanism of discovering class information solely at run time.Wondering where it would be useful? Imagine,you are in visual studio IDE (Integrated devolopment environment) and as you type "object." you would see all the methods,properties and events associated with that object.

Reflection[^]

Regards,

Satips.

Pie Charts in Crystal report dosent show 0 value

Shaurya_Rastogi30-May-07 0:25

Shaurya_Rastogi

30-May-07 0:25

I have a report that displays the percent of true or false answered for questions.
I am using pie chart to display the result.
In case either of the value is 0, no label is displayed saying 0% on the chart
Is there any way to display it?

menuitems

treah30-May-07 0:21

treah

30-May-07 0:21

i want to select the menuitem from a menu
Confused | :confused:

Re: menuitems

Manoj Kumar Rai30-May-07 1:05

Manoj Kumar Rai

30-May-07 1:05

So, where is the problem? Add a menu to your forms and add Menu Items and finally implement the event handlers for the Menu.

Manoj
Never Gives up

Http Post in C#

aruna_koride30-May-07 0:20

aruna_koride

30-May-07 0:20

Hi

I am trying to upload file using Http Post, I need to set content type-multipart.Please advise..
I tried many ways but not succesful..

Thanks

Re: Http Post in C#

J. Dunlap30-May-07 1:16

J. Dunlap

30-May-07 1:16

Is this in a browser scenario, or is this in a desktop scenario? With ASP.NET, the best way to upload a file is with the FileUpload control. In a desktop situation, use WebRequest.Create() to create a web request. Set the ContentType property on the request, and then get a response for it:

WebRequest request= WebRequest.Create(url);
request.ContentType="multipart/form-data";
request.Method="POST";
Stream stream=request.GetRequestStream();
//write to the stream...
WebResponse response= request.GetResponse();
//check the response to see if the file was uploaded successfully

--Justin
Microsoft MVP, C#

C# / Web / VG.net / MyXaml expert currently looking for (telecommute) contract work![^]

DATA GRID sorting problem.

kumar.bs30-May-07 0:14

kumar.bs

30-May-07 0:14

My requirement is, i added 50 empty rows to the Data grid. One of the columns of the datagrid is of ComboBoxColumnStyle. Now after filling data into just two rows (remember i have 50 empty rows), when i click on column header of ComboBoxColumnStyle columns it is sorting the total 50 rows, but i want to ignore the empty rows (other 48 rows). Because if i don't ignore the empty rows and sort the rows with data are being moved to end of the grid, leaving all above rows empty.

Any ideas, how to sort rows only with data?

Thanks
kumar

Re: DATA GRID sorting problem.

Manoj Kumar Rai30-May-07 1:12

Manoj Kumar Rai

30-May-07 1:12

Hi,

You can set the "SortMode" properties for the column as "Programatic". In this case you can control the time when you want the sorting to take place.

Manoj
Never Gives up

Re: DATA GRID sorting problem.

Meenakshi Sundaram.k30-May-07 2:06

Meenakshi Sundaram.k

30-May-07 2:06

its simple write one for loop for geeting all the data from datagrid and check within for loop the data is available or not .if the data is available sort the data.

Re: DATA GRID sorting problem.

kumar.bs30-May-07 6:16

kumar.bs

30-May-07 6:16

In which event should i write this code?

HashTable sort order

Blumen29-May-07 23:56

Blumen

29-May-07 23:56

Hi,

I declare a HashTable as a class variable, and assign values to it inside a private fuction. I try to access the HashTable in another function, but the order of the Keys added is lost.

If I have added keys in the order 1, 2 and 3 (with its Value), when I access the HashTable the order is lost, it may be in 2-3-1 order or some other order.

Usually hashtable retains the order, could anyone point what going wrong here.

Regards,
Blumen

Re: HashTable sort order

Martin#30-May-07 0:07

Martin#

30-May-07 0:07

Hello,

No Hashtable is not holding the order.
An ArrayList does.

All the best,

Martin

Re: HashTable sort order

CPallini30-May-07 0:15

CPallini

30-May-07 0:15

As pointed out already by Martin#, the key order of insertion is not retained, for instance, see the sample code given in
http://msdn2.microsoft.com/en-us/library/system.collections.hashtable.add.aspx[^]
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: HashTable sort order

sujithkumarsl30-May-07 1:25

sujithkumarsl

30-May-07 1:25

you can use sorted list, if you want that in an order

My small attempt...

Re: HashTable sort order

leppie30-May-07 4:51

leppie

30-May-07 4:51

Hashtable never orders the keys. You can NEVER rely on that. Use a SortedList instead.

xacc.ide-0.2.0.57 - now with C# 2.0 parser and seamless VS2005 solution support!

failed to load view state

tauras8129-May-07 23:49

tauras81

29-May-07 23:49

hi,
i hava following error :

Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
Description: 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.

Exception Details: System.Web.HttpException: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.]
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +483
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +195
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +424
System.Web.UI.Page.LoadAllState() +559
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2237

--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210

can any body tell the solution

Re: failed to load view state

leppie30-May-07 4:53

leppie

30-May-07 4:53

You need to reset the page's viewstate after adding the controls dynamically, then it will recreate it, and all should be fine.

xacc.ide-0.2.0.57 - now with C# 2.0 parser and seamless VS2005 solution support!

ASCII LpSTR?

Russell Jones29-May-07 23:41

Russell Jones

29-May-07 23:41

I'm trying to make a call into a compression dll

This is declared like this in VB6:

<br />
Private Declare Function compress Lib "compression.dll" (dest As Any, destLen As Any, src As Any, ByVal srcLen As Long) As Long<br />
Private Declare Function uncompress Lib "compression.dll" (dest As Any, destLen As Any, src As Any, ByVal srcLen As Long) As Long

I've added the following to a c# class

<br />
   [DllImport("compression.dll")]<br />
      public static extern int uncompress(ref byte[] inputBuffer, ref int inputLength, ref byte[] outputBuffer, int OutputLength);<br />
      [DllImport("compression.dll")]<br />
      public static extern int compress( [MarshalAs(UnmanagedType.LPStr)]  StringBuilder inputBuffer,ref  int inputLength,  [MarshalAs(UnmanagedType.LPStr)]  StringBuilder outputBuffer, int OutputLength);

If i call the compress method using c# and decompress using c# this works fine. The problem arises when i try to compress in c# and decompress in vb6 or vice versa. Is there a back compatability mode for string functions like this?

Thanks in advance

Russell

Re: ASCII LpSTR?

Dave Herren30-May-07 1:21

Dave Herren

30-May-07 1:21

Russell Jones wrote:
The problem arises

What is the problem... an error message, invalid data, what? Please provide a little detail.

topcoderjax - Remember, Google is your friend.

Try this Custom Google Code Search

Sub-classing

Shivaprasad D Atthigode29-May-07 23:27

Shivaprasad D Atthigode

29-May-07 23:27

what is sub-classing in C#, and hw to achive that.

Re: Sub-classing

MarkB77729-May-07 23:56

MarkB777

29-May-07 23:56

//a.k.a inheritance.

//so for example...

public class ClassOne : ClassBase
{
//this class is a subclass of ClassBase
}

public class ClassTwo : ClassBase
{
//this class is a subclass of ClassBase
}

public class ClassBase
{
protected int X = 5; // The two subclasses can access this variable as its been "inherited"
}

rich textbox

treah29-May-07 23:18

treah

29-May-07 23:18

i want to select the text written in the rich text box

Re: rich textbox

JoeSharp29-May-07 23:26

JoeSharp

29-May-07 23:26

hi
myrichtextbox.SelectAll():

regards

Re: rich textbox

NassosReyzidis29-May-07 23:27

NassosReyzidis

29-May-07 23:27

Hello treah,
with the RTFControl1.SelectionStart and RTFControl1.SelectionLength will give you the start and length (int) so you can get the text!
Hope that helps
Nassos

GanDad

Populate combobox

matjame29-May-07 23:00

matjame

29-May-07 23:00

Hi all.

Im trying to load data into a combo box during form load.The items Im trying to load are from a database.

Now here is my little code that gives me errors.

protected void Page_Load(object sender, EventArgs e)
{
con.ConnectionString = str;
String str1 = "Select * from Filter";
con.Open();
cm.Connection = con;
dtr = cm.ExecuteReader();
if (dtr.Read())
{
// Load FilterByKeys onto the combo box
cboExtension.Text = (dtr["FilterKey"]).ToString();<<*****Problem****
lblMessage.Text = "Good. All the values are loaded";

Thanx.

kagiso

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.