ASP.NET

2-Jan-08 22:09

This is the error while i tried to bind the xml file with treeview

HierarchicalDataBoundControl only accepts data sources that implement IHierarchicalDataSource or IHierarchicalEnumerable.

My code is

DataSet ds = new DataSet();<br />
            ds.ReadXml(Server.MapPath("xmlfile.xml"));<br />
            <br />
            TreeView1.DataSource = ds;<br />
            TreeView1.DataBind();

My xml file contents are

<?xmlversion = "1.0" encoding="utf-8" ?>

<countries>
<country>
<text>Norway</text>
<value>N</value>
</country>
</countries>

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

modified on Thursday, January 03, 2008 4:15:38 AM

N a v a n e e t h2-Jan-08 22:18

2-Jan-08 22:18

Sonia Gupta wrote:
HierarchicalDataBoundControl only accepts data sources that implement IHierarchicalDataSource or IHierarchicalEnumerable.

Error message explains itself the problem. Check this[^] for more information. Or you can use XMLDataSource too.

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Sonia Gupta2-Jan-08 23:17

2-Jan-08 23:17

DataSet aDataSet = new DataSet();
aDataSet.ReadXml(new StringReader(aXmlDoc.OuterXml));
the refered[^] article contains the above code.
i am unable to understand , how can i invoke the OuterXml ,
it is not appearing in the control properties(xml data source)

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

N a v a n e e t h2-Jan-08 23:26

2-Jan-08 23:26

Using XMLDataSource may be different. Check this[^]

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Sonia Gupta2-Jan-08 23:50

2-Jan-08 23:50

u have any link that delete,edit , update , insert the data using xml data source ?

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

N a v a n e e t h2-Jan-08 23:58

2-Jan-08 23:58

I have never used this one. So I don't have any good links. Isn't that MSDN example works ?

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Sonia Gupta3-Jan-08 0:14

3-Jan-08 0:14

No ,Actually i was trying to insert delete the recors dynamically.
do u have one such link?
and one ore thing ,
i have a Command Field control , on clickig the update button , i have to validate the textbox , having the date information, Initially i used the regular expression , but the moment i wrote 30/2/2000 (dd/mm/yyyy), it did not validate , that's y i prefered to use the java script,
how should i find out programically the update button of command field , in order to validate the date .

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Christian Graus2-Jan-08 22:21

Christian Graus

2-Jan-08 22:21

Sonia Gupta wrote:
TreeView1

I know I've told you this at least 15 times, but why wouldn't you use sensible variable names ?

I've never used a TreeView control in ASP.NET, but your error message gave me an interface name, and by typing it in to google, I discovered that you need to set up an XmlDataSource in order to use XML to bind to a tree view.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Create text image using handler

Michael Sync2-Jan-08 23:14

Michael Sync

2-Jan-08 23:14

Christian Graus wrote:
I know I've told you this at least 15 times,

haha.

maybe.. he wants to hear more and more.. Smile | :)

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Imran Khan Pathan2-Jan-08 20:05

Imran Khan Pathan

2-Jan-08 20:05

Hi friends.

I have coded to create text image using handler.But i can not get clarity of the image.

please visit these links.

BuildAsign[^] and Mysite[^]

My handler code here

public class getImage : IHttpHandler
{
MemoryStream PlotText(string text)
{

try
{
string fontFamily = GetArg("family", "Verdana");
float fontSize = float.Parse(GetArg("size", "12")); // assumed to be pixels
bool fontBold = bool.Parse(GetArg("bold", "false"));
bool fontItalic = bool.Parse(GetArg("italic", "false"));
bool fontUnderline = bool.Parse(GetArg("underline", "false"));
int iWidth = int.Parse(GetArg("width", "100"));
int iHeight = int.Parse(GetArg("height", "100"));
//int action = int.Parse(GetArg("action", "0"));
iHeight = int.Parse(fontSize.ToString()) + 10;
string isImage = GetArg("isImage", "true");
Color fontColor = GetColor(GetArg("color", "Black"));

//this is namespace for true virtual catch

if (text.Length > 100)
text = text.Substring(0, 100);
if (fontSize > 400)
fontSize = 400;

iWidth = text.Length * int.Parse(fontSize.ToString());
SizeF size = new SizeF(1, 1);
Font font = null;

try
{
Bitmap bitmap = new Bitmap(1, 1);

Graphics g = Graphics.FromImage(bitmap);

g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.TextRenderingHint =TextRenderingHint.AntiAlias;
g.SmoothingMode = SmoothingMode.HighQuality;

FontStyle fontStyle = FontStyle.Regular;
if (fontBold) fontStyle |= FontStyle.Bold;
if (fontItalic) fontStyle |= FontStyle.Italic;
if (fontUnderline) fontStyle |= FontStyle.Underline;
//fontSize = ((float)(iWidth / iHeight)) + iWidth;
font = new Font(fontFamily, fontSize, fontStyle, GraphicsUnit.World);
// could get fancy here with StringFormat options
size = g.MeasureString(text, font);

int mW = int.Parse(fontSize.ToString()) / 2;

int w = mW / 2;

//if (isImage == "true")
// bitmap = new Bitmap((int)size.Width+w - mW, (int)size.Height - mW, PixelFormat.Format64bppPArgb);
//else
bitmap = new Bitmap((int)size.Width, (int)size.Height, PixelFormat.Format64bppPArgb);

g = Graphics.FromImage(bitmap);

SolidBrush br = new SolidBrush(Color.White);

g.FillRectangle(br, 0, 0, bitmap.Width, bitmap.Height);

br = new SolidBrush(fontColor);

//StringFormat sf = new StringFormat();
//sf.Alignment = StringAlignment.Center;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

//g.TextRenderingHint = TextRenderingHint.AntiAlias;
//if (isImage == "true")
// g.DrawString(text, font, br, new PointF(-w + 5, -w + 2));
//else
g.DrawString(text, font, br, new PointF(0,0));

MemoryStream m = new MemoryStream();
bitmap.Save(m, ImageFormat.Gif);

return MakeTransparent(m);
}

finally
{
if (font != null) font.Dispose();
}

}
catch
{
return PlotError();
}
}

MemoryStream PlotError()
{

MemoryStream m = new MemoryStream();

using (Bitmap bitmap = new Bitmap(40, 15, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(bitmap))
{
using (SolidBrush br = new SolidBrush(Color.White))
{
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.FillRectangle(br, 0, 0, bitmap.Width, bitmap.Height);
}
using (Pen p = new Pen(Color.Red))
{
g.DrawLine(p, 0, 0, bitmap.Width, bitmap.Height);
g.DrawLine(p, 0, bitmap.Height, bitmap.Width, 0);
}
bitmap.Save(m, ImageFormat.Gif);
}
}
return MakeTransparent(m);
}

void ok()
{
SetResponse(HttpStatusCode.OK, "Ok");
}

void error()
{
error(HttpStatusCode.BadRequest, "Bad Request");
}
void error(HttpStatusCode statusCode, string statusDescription)
{
SetResponse(statusCode, statusDescription);
_response.BinaryWrite(PlotError().ToArray());
_response.End();
}

#region ---- Process Request -----
HttpRequest _request;
HttpResponse _response;

public void ProcessRequest(HttpContext context)
{

_request = context.Request;
_response = context.Response;

if (!(("GET" == _request.RequestType) || ("HEAD" == _request.RequestType)))
error(HttpStatusCode.MethodNotAllowed, "Method Not Allowed");

string text = GetArg("text", "");
if (text.Length == 0)
error();

ok();

_response.BinaryWrite(PlotText(text).ToArray());

}
#endregion

public bool IsReusable
{
get { return false; }
}

// --------------------------------------------------------------------

string GetArg(string argName, string argDefault)
{
string arg = _request.QueryString[argName];
if ((null == arg) || (arg.Length == 0)) return argDefault;
return arg;
}

void SetResponse(HttpStatusCode statusCode, string statusDescription)
{
_response.ContentType = "image/gif";
_response.StatusCode = (int)statusCode;
_response.StatusDescription = statusDescription;
_response.Flush();
}

Array Redim(Array origArray, int newSize)
{
Type t = origArray.GetType().GetElementType();
Array newArray = Array.CreateInstance(t, newSize);
Array.Copy(origArray, 0, newArray, 0, Math.Min(origArray.Length, newSize));
return newArray;
}

Color GetColor(string color)
{
if (color.StartsWith("#"))
{
return Color.FromArgb(IntFromHexRgbPart(color, RgbPart.RgbPartRed),
IntFromHexRgbPart(color, RgbPart.RgbPathGreen),
IntFromHexRgbPart(color, RgbPart.RgbPartBlue)
);
}
return Color.FromName(color);
}

enum RgbPart { RgbPartRed, RgbPathGreen, RgbPartBlue };

int IntFromHexRgbPart(string hexRgb, RgbPart part)
{
if ((null == hexRgb) || (hexRgb.Length == 0) || (!(hexRgb.StartsWith("#"))))
return 0;
try
{
switch (part)
{
case RgbPart.RgbPartRed:
if (hexRgb.Length < 3) return 0;
return IntFromHex(hexRgb.Substring(1, 2));
case RgbPart.RgbPathGreen:
if (hexRgb.Length < 5) return 0;
return IntFromHex(hexRgb.Substring(3, 2));
case RgbPart.RgbPartBlue:
if (hexRgb.Length < 7) return 0;
return IntFromHex(hexRgb.Substring(5, 2));
default:
return 0;
}
}
catch { return 0; }
}

int IntFromHex(string hex)
{
return (int)byte.Parse(hex, System.Globalization.NumberStyles.HexNumber);
}

MemoryStream MakeTransparent(MemoryStream origBitmapMemoryStream)
{

Color transparentColor = GetColor("White");
int transparentArgb = transparentColor.ToArgb();

using (Bitmap origBitmap = new Bitmap(origBitmapMemoryStream))
{
using (Bitmap newBitmap = new Bitmap(origBitmap.Width, origBitmap.Height, origBitmap.PixelFormat))
{

ColorPalette origPalette = origBitmap.Palette;
ColorPalette newPalette = newBitmap.Palette;

int index = 0;
int transparentIndex = -1;

foreach (Color origColor in origPalette.Entries)
{
newPalette.Entries[index] = Color.FromArgb(255, origColor);
if (origColor.ToArgb() == transparentArgb) transparentIndex = index;
index += 1;
}

if (-1 == transparentIndex)
{
return origBitmapMemoryStream;
}

newPalette.Entries[transparentIndex] = Color.FromArgb(0, transparentColor);
newBitmap.Palette = newPalette;

Rectangle rect = new Rectangle(0, 0, origBitmap.Width, origBitmap.Height);

BitmapData origBitmapData = origBitmap.LockBits(rect, ImageLockMode.ReadOnly, origBitmap.PixelFormat);
BitmapData newBitmapData = newBitmap.LockBits(rect, ImageLockMode.WriteOnly, newBitmap.PixelFormat);

for (int y = 0; y < origBitmap.Height; y++)
{
for (int x = 0; x < origBitmap.Width; x++)
{
byte origBitmapByte = Marshal.ReadByte(origBitmapData.Scan0, origBitmapData.Stride * y + x);
Marshal.WriteByte(newBitmapData.Scan0, newBitmapData.Stride * y + x, origBitmapByte);
}
}

newBitmap.UnlockBits(newBitmapData);
origBitmap.UnlockBits(origBitmapData);

MemoryStream m = new MemoryStream();

newBitmap.Save(m, ImageFormat.Gif);
return m;

}
}

}

}

please don't forget to vote on the post that helped you.

OWC webchart issue

uglyeyes2-Jan-08 20:01

uglyeyes

2-Jan-08 20:01

Hi I am trying use OWC chart component to draw a comparative graph that will show

list of years and sales actual and sales budgeted. so i have three columsn

year actual budgeted
2004 20 30
2005 21 32

now i am trying to show year in x axis and have seperate graphs for 20 and 30 in year 2004 and 2005. I am not getting able to show both i can only show one can any please help me with it i have attached the code for easy understanding

------
Dim dsPropertyCapex As DataSet = myDAL.getBudgetVsActual(domainid, locationid, buildingcomponentid, PortfolioId, userId)
If Not dsPropertyCapex Is Nothing Then
gvPropertyHisex.DataSource = dsPropertyCapex
gvPropertyHisex.DataBind()
'Now Build a graph from the dataset

Dim oChartSpace As New Owc11.ChartSpaceClass()
Dim objChart As Owc11.ChChart = oChartSpace.Charts.Add(0)
objChart.HasTitle = True
objChart.Title.Caption = "Capital Expenditure Graph"
objChart.HasLegend = True
objChart.Legend.Border.DashStyle = Owc11.ChartLineDashStyleEnum.chLineDash
objChart.Legend.Position = Owc11.ChartLegendPositionEnum.chLegendPositionRight

Dim sw As New System.IO.StringWriter()
Dim xDoc As New XmlDocument()
dsPropertyCapex.WriteXml(sw)
' clean up

xDoc.LoadXml(sw.ToString())
sw.Close()
Dim nodes As System.Xml.XmlNodeList
nodes = xDoc.ChildNodes.Item(0).ChildNodes
Dim nCount As Integer = nodes.Count
Dim aActual As String() = New String(nCount - 1) {}
Dim aBudgeted As String() = New String(nCount - 1) {}
Dim aEOY As String() = New String(nCount - 1) {}
Dim Actual As String = [String].Empty
Dim Budgeted As String = [String].Empty
Dim EOY As String = [String].Empty
Dim i As Integer = 0
For i = 1 To nCount
aActual(i - 1) = nodes.Item(i - 1).ChildNodes.Item(0).InnerText
aBudgeted(i - 1) = nodes.Item(i - 1).ChildNodes.Item(1).InnerText
aEOY(i - 1) = nodes.Item(i - 1).ChildNodes.Item(2).InnerText

Next

Actual = [String].Join("" & Chr(9) & "", aActual)
Budgeted = [String].Join("" & Chr(9) & "", aBudgeted)
'Chart control accepts tab-delimited string of values
EOY = [String].Join("" & Chr(9) & "", aEOY)

'oChartSpace.Charts.Add(0)
objChart.SeriesCollection.Add(0)
objChart.SeriesCollection(0).SetData(Owc11.ChartDimensionsEnum.chDimValues, Convert.ToInt32(Owc11.ChartSpecialDataSourcesEnum.chDataLiteral), Actual)
objChart.SeriesCollection(0).SetData(Owc11.ChartDimensionsEnum.chDimCategories, Convert.ToInt32(Owc11.ChartSpecialDataSourcesEnum.chDataLiteral), EOY)
'objChart.SeriesCollection(0).SetData(Owc11.ChartDimensionsEnum.chDimCategories, Convert.ToInt32(Owc11.ChartSpecialDataSourcesEnum.chDataLiteral), Actual)
'objChart.SeriesCollection(0).SetData(Owc11.ChartDimensionsEnum.chDimCategories, Convert.ToInt32(Owc11.ChartSpecialDataSourcesEnum.chDataLiteral), Budgeted)

objChart.SeriesCollection.Add(1)
objChart.SeriesCollection(1).SetData(Owc11.ChartDimensionsEnum.chDimValues, Convert.ToInt32(Owc11.ChartSpecialDataSourcesEnum.chDataLiteral), Budgeted)

Dim strFullPathAndName As String = Server.MapPath(System.DateTime.Now.Ticks.ToString() + ".gif")
oChartSpace.ExportPicture(strFullPathAndName, "gif", 600, 400)
imgCapexGraph.ImageUrl = Server.UrlEncode(Path.GetFileName(strFullPathAndName))
imgCapexGraph.Visible = True
RemoveFiles(Server.MapPath("."))

faster execution in case of anchor tags , link buttons

Sonia Gupta2-Jan-08 19:58

Re: faster execution in case of anchor tags , link buttons

2-Jan-08 19:58

in the code project , the moment I click the thread to view the question , it instantly gets appeared (i have selected the normal option in the page (code project site)) . When i select the no java script , it takes time .In both the case , the request definitely goes to the server
Now my question is
1. what should I do In order to perform the same task?

What I thought so far is the jaa script, and java script database connectivity

2.Is this the right way to perform the task?

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

N a v a n e e t h2-Jan-08 20:00

Re: faster execution in case of anchor tags , link buttons

2-Jan-08 20:00

Sonia Gupta wrote:
In both the case , the request definitely goes to the server

No in the normal case, all answers will be pre-loaded and request won't go to the server.

Sonia Gupta wrote:
what should I do In order to perform the same task?

It's just javascript and styles. You can find it looking into this page source.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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Sonia Gupta2-Jan-08 20:09

Re: faster execution in case of anchor tags , link buttons

2-Jan-08 20:09

ok Navaneeth , i am trying.

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Christian Graus2-Jan-08 22:10

Christian Graus

2-Jan-08 22:10

Sonia Gupta wrote:
In both the case , the request definitely goes to the server

What on earth made you thin that ? Turn on javascrpt. Browse to the lounge. Disconnect from the web and click on a post. You will find you can see it. There is no request to the server.

Creating a directory or folder `

.NET- India 2-Jan-08 19:57

.NET- India

2-Jan-08 19:57

Hello Everyone,

I'm creating directory in my project....but it's throwing an error
"Access to the path "c:\inetpub\wwwroot\KiritBhai\Gallery\Manoj" is denied"

My code is here as given below......
string add=Server.MapPath("../Gallery/")+"Manoj";
DirectoryInfo dir=new DirectoryInfo(add);
dir.Create();

but whenever i'm creating this folder in a drive like c,d and etc.
Then it's rocking..............

Re: Creating a directory or folder `

N a v a n e e t h2-Jan-08 19:59

Re: Creating a directory or folder `

2-Jan-08 19:59

The Knowledge wrote:
I'm creating directory in my project....but it's throwing an error
"Access to the path "c:\inetpub\wwwroot\KiritBhai\Gallery\Manoj" is denied"

Give write permission to your ASP.NET account. Or use impersonation.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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.NET- India 2-Jan-08 20:23

.NET- India

2-Jan-08 20:23

where to put the mpersonation in my code plz explain

Re: Creating a directory or folder `

N a v a n e e t h2-Jan-08 20:27

Dropdown Textbox in asp.net

2-Jan-08 20:27

The Knowledge wrote:
where to put the mpersonation in my code

You will get many results from google[^]. You should impersonate user before creating directory and remove impersonation after it's done.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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anujose2-Jan-08 19:51

anujose

2-Jan-08 19:51

Hi,

i want to Filter Items in a dropdown box when i type data in textbox.ie,if i will type A i want to display items from database based on A and when i press enter from the box i want to display that specified name in Textbox.based on that name i want to display value also.i want to scroll the items in that box also.if any one knows about this please let me know at the earliest

with regards,
Anu

N a v a n e e t h2-Jan-08 19:55

2-Jan-08 19:55

I think AJAX toolkit has such a control. Have you checked ?

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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anujose2-Jan-08 20:21

anujose

2-Jan-08 20:21

Michael Sync2-Jan-08 21:09

Michael Sync

2-Jan-08 21:09

anujose wrote:
No

Why? Have you tried this link? ASP.NET Ajax - Autocomplete Example[^]

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)