ASP.NET

Re: Deleting Multiple Items in a Listbox

20-Aug-07 23:13

This is probably the best you can do, if you use foreach to step through the selected items, you can't delete anything while in the for each statement.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Talal Sultan20-Aug-07 23:23

Talal Sultan

20-Aug-07 23:23

If you are running this code inside an event method (of a button click for example), bear in mind that if you are performing data binding on the listbox in the page load method, you need to make sure that the code is included inside the if (!isPostBack) section, or else the data binding will be performed on each page postback (when you click the button) and thus no item will be selected anymore in the listbox. The page load is executed before the button click event method.

Talal

Problem

Big Ralph20-Aug-07 21:59

20-Aug-07 21:59

I am getting this error what should I do to access my asp.net application

ERROR:

"Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC31019: Unable to write to output file 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\26676eb7\92c7e946\App_Web_loggedin.aspx.cdcab7d2.1-wj1so1.dll': The directory name is invalid."

Big Ralph

Christian Graus20-Aug-07 22:27

20-Aug-07 22:27

reboot ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Sam Heller20-Aug-07 23:23

Sam Heller

20-Aug-07 23:23

Wouldn't a rebuild also fix this up?

Christian Graus20-Aug-07 23:30

20-Aug-07 23:30

PErhaps, but a reboot is more likely to work

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Big Ralph20-Aug-07 23:57

20-Aug-07 23:57

thx alot guys

BiG RaLpH

Big Ralph20-Aug-07 23:59

20-Aug-07 23:59

still the same problem after reboot.

do u have any other ideas?

thx

BiG RaLpH

Bhaskar Shetty21-Aug-07 0:26

Bhaskar Shetty

21-Aug-07 0:26

Try Re-installing .NET Framework,

Bhaskar Shetty

Big Ralph22-Aug-07 0:28

regarding datetimepicker control in asp.net 2.0

22-Aug-07 0:28

I re-installed it and nothing happened

any other Ideas?

BiG RaLpH

shanmukeshwar20-Aug-07 21:58

shanmukeshwar

20-Aug-07 21:58

Hi,
I am using the datetimepicker control code which is given in this site.I am using vs.net 2005 (Master and content pages)
I have a content page as below

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test.aspx.cs" Inherits="test" MasterPageFile="~/MasterPage.master" %>

<asp:content contentplaceholderid="dataPlaceHolder" id="content1" runat="server">

<asp:button id="abc" text="clickme" runat="server">

Now when I click the button I am opening a modal window using javascript function

abc.Attributtes.Add("onclick","javascript:openwindow('abcd.aspx','newwin')");

javascript function

var winpop = null;

function openwindow(url,name) {

winpop = window.showModalDialog(url,name,'dialogwidth:700px;dialogHeight:600px');}

if (!document.all)
{

document.captureEvents (Event.CLICK);

}

document.onclick = function()
{

if (winpop != null && !winpop .closed)
{

winpop .focus();

}

}

In the modal window I am using the calendarcontrol as below

<cc1:datetimepicker id="DateTimePicker1" runat="server" formattype="short">(mm/dd/yyyy)

<asp:textbox id="id1" runat="server">

One more problem is when I use the webcustomcontrol in the showmodaldialog window,it has some textboxes below the datetimepicker control.when I click on the button to select the date, the textbox controls which are below the datetimepickercontrol are moving down automatically and also when I select the date, application gets hanged up.
the above control is a webcustomcontrol . the code is below for it.

using System;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.ComponentModel;

using System.Drawing;

using System.Web.UI.HtmlControls;

using System.Web.UI.Design;

using System.ComponentModel.Design;

namespace DTPicker
{

///

/// Summary description for WebCustomControl1.

///

[DefaultProperty("Text"),

ToolboxData("<{0}:DateTimePicker runat=server>")]

[

Designer("DTPicker.MyDesigner")

]

public class DateTimePicker : System.Web.UI.WebControls.WebControl,INamingContainer
{

private TextBox dArea=new TextBox();private Calendar cal=new Calendar();

public DateTimePicker()
{

visibility=false;
SelectedDate="1/1/1";

FormatType="SHORT";

}

private bool visibility;

public string SelectedDate
{

get

{

return (string)ViewState["selecteddate"];
}

set

{

ViewState["selecteddate"]=value;

}

}

public string FormatType
{

get

{

return (string)ViewState["format"];
}

set

{

string val=(string)value;

ViewState["format"]=val.ToUpper();

}

}

protected void month_changed(object sender,MonthChangedEventArgs e)
{

visibility=true;

}

protected void date_changed(object sender,System.EventArgs e)
{

visibility=false;
SelectedDate=cal.SelectedDate.ToShortDateString();

}

protected override void CreateChildControls()
{

cal.VisibleMonthChanged +=new MonthChangedEventHandler(month_changed);cal.SelectionChanged +=new System.EventHandler(date_changed);

Controls.Add(dArea);

Controls.Add(cal);

base.CreateChildControls();

}

///

/// Render this control to the output parameter specified.

///

/// <param name="output" /> The HTML writer to write out to

protected override void Render(HtmlTextWriter output)
{

if(Visible)
{

dArea.Width=this.Width;dArea.Height=new Unit("20px");

//Display properties of Calendar Control

cal.BackColor=Color.White;

cal.BorderColor=Color.Red;

cal.BorderStyle=BorderStyle.Solid;

cal.BorderWidth=new Unit("4px");
cal.DayHeaderStyle.BackColor=Color.White;

cal.DayHeaderStyle.BorderColor=Color.Blue;

cal.DayHeaderStyle.ForeColor=Color.BlueViolet;

cal.DayNameFormat=DayNameFormat.Short;

cal.Font.Size=FontUnit.Smaller;

cal.ForeColor=Color.Black;

cal.Height=new Unit("169px");
cal.NextPrevFormat=NextPrevFormat.CustomText;

cal.NextMonthText=">";

cal.PrevMonthText="<";

cal.NextPrevStyle.BackColor=Color.Silver;

cal.NextPrevStyle.ForeColor=Color.Black;

cal.NextPrevStyle.HorizontalAlign=HorizontalAlign.Center;

cal.NextPrevStyle.VerticalAlign=VerticalAlign.Middle;

cal.OtherMonthDayStyle.ForeColor=Color.Silver;

cal.SelectedDayStyle.BackColor=Color.Black;

cal.SelectedDayStyle.BorderColor=Color.Red;

cal.SelectedDayStyle.BorderStyle=BorderStyle.Solid;

cal.SelectedDayStyle.BorderWidth=new Unit("4px");
cal.SelectedDayStyle.ForeColor=Color.White;

cal.Width=new Unit("189px");
cal.TitleStyle.BackColor=Color.Navy;

cal.TitleStyle.ForeColor=Color.White;

cal.TitleStyle.Font.Size=FontUnit.XSmall;

cal.TitleStyle.Font.Bold=true;
cal.TodayDayStyle.BackColor=Color.White;

cal.TodayDayStyle.BorderColor=Color.Red;

cal.TodayDayStyle.BorderStyle=BorderStyle.Solid;

cal.TodayDayStyle.BorderWidth=new Unit("4px");
cal.TodayDayStyle.ForeColor=Color.Black;

//Check for the format of the "SelectedDate Property".The format

//should be mm/dd/yy.If the format is wrong or the value of SelectedDate

//property is the default 1\1\1,the Selected Date becomes TodaysDate

string delim="/";
string[] cons=SelectedDate.Split(delim.ToCharArray());

int year=1;
int month=1;

int day=1;if(cons.Length==3)
{

year=Convert.ToInt32(cons[2]);

month=Convert.ToInt32(cons[1]);

day=Convert.ToInt32(cons[0]);

}

if(year>1 || month>1 || day>1)
{

if(!visibility)
{

cal.TodaysDate=new DateTime(year,day,month);
}

cal.SelectedDate=new DateTime(year,day,month);

if(FormatType=="SHORT")

dArea.Text=cal.SelectedDate.ToShortDateString();

else

{

dArea.Text=cal.SelectedDate.ToLongDateString();

}

}

else

{

cal.SelectedDate=cal.TodaysDate;

SelectedDate=cal.SelectedDate.ToShortDateString();

if(FormatType=="SHORT")
dArea.Text=cal.TodaysDate.ToShortDateString();

else

{

dArea.Text=cal.TodaysDate.ToLongDateString();

}

}

string uniqueID=this.UniqueID;//uniqueID generated for control

string spanID="main"+uniqueID;//ID of the span HTML control

string btnID=uniqueID+"btn";//ID of the button

string tdID=uniqueID+"td";//ID of the TD housing the Calendar

string hidID=uniqueID+"_a1";//ID of the input hidden control;helps in capturing BackButton

//controls the display property of Calendar

//The Calendar is hiding when the page is first loaded or when date changed event occurs

//The Calendar is visible when month change event occurs

//This variable controls the display style

string display;
string onloadfn=uniqueID+"setfocusonload()";//this fn gets executed when IFRAME loads

string togfn=uniqueID+"setfocusonclick()";//function executed on the onclicck eventof button...display calendar if invisible

string onblurfn=uniqueID+"hideCal()";//when a TD containing the Calendar loses focus...The calendar is made invisible

string onfocusfn=uniqueID+"showCal()";//when TD gets focus calendar is made visible

string donothing=uniqueID+"donothing()";
string onmouseoverfn=uniqueID+"getover()";

string onmouseoutfn=uniqueID+"getout()";
//render the dummy IFRAME tag

output.WriteLine("");

output.WriteLine("");

//render hidden control with value according to visibility required

//and the display property to be used for calendar

if(visibility==false)
{

output.WriteLine("");

display="none";

}

else

{

output.WriteLine("");

display="";

}

//start outputting the script

output.WriteLine("");

//Finished rendering the script portion

//Start rendering the Controls

//The Table which contains both TextBox and the button The syle attribute

//which is set by designer is applied,so that the absolute

//positioning of DateTimePicker is possible

output.Write("");

//'over' keeps track of the position of mouse...to check if button was clicked

output.WriteLine("over=0;");

//This function is executed on the load of IFRAME

//If the calendar is visible when page is loaded

//we simply give Calendar focus and set its z-Index property

//z-Index property controls 3D effect

//The function checks value of hidden control to see if Calendar

//is visible or otherwise.

output.WriteLine("function "+onloadfn);

output.WriteLine("{");

output.WriteLine("if(document.all('"+hidID+"').value==1)");

output.WriteLine("{");

output.WriteLine("document.all('"+tdID+"').focus()");

output.WriteLine("document.all('"+spanID+"')"+".style.zIndex=120;");

output.WriteLine("}");

output.WriteLine("}");

//This function is called when the button is clicked.This simply gives focus

//to the TD and also sets the z-Index property.The above function works

//when calendar is visible..this one works when it is invisible.

//This fn sets the value of hidden control to 1...

//setting this value to 1 gives the onload function above to set

//the z-Index property even if we use back button.This is because browsers

//caches the value of "<input>" controls of previous pages.Back Button of

//browser can become enabled when we change months

output.WriteLine("function "+togfn);

output.WriteLine("{");

output.WriteLine("if("+uniqueID+".style.display=='none')");

output.WriteLine("{");

output.WriteLine("document.all('"+tdID+"').focus()");

output.WriteLine("document.all('"+spanID+"')"+".style.zIndex=120;");

output.WriteLine("document.all('"+hidID+"').value=1;");

output.WriteLine("}");

output.WriteLine("}");

//The TD on losing focus hides the Calendar within it

//But if the lost focus occured due to the button click

//(indicated by over==1)the Cal won't get invisible sine

//the button click will be called immediately after this onblur event

//which will again cause it to be displayed...The only thing that we can

//do is somehow disable the click for once..This is

//done by assigning 'donothing' fn to it..which doesn't do anything

//with the calendar..it simply restores the eventhandler for button onclick

//so everything is back to normal.

output.WriteLine("function "+onblurfn);

output.WriteLine("{");

output.WriteLine("document.all('"+tdID+"').childNodes(0).style.display='none';");

output.WriteLine("if (over==1)");

output.WriteLine("document.all('"+btnID+"').onclick="+uniqueID+"donothing;");

output.WriteLine("}");

//When TD gets focus it simply makes the Calendar within it visible

output.WriteLine("function "+onfocusfn);

output.WriteLine("{");

output.WriteLine("document.all('"+tdID+"').childNodes(0).style.display='';");

output.WriteLine("}");

//As explained below this function simply restores the onclick handler

output.WriteLine("function "+donothing);

output.WriteLine("{");

output.WriteLine("document.all('"+btnID+"').onclick="+uniqueID+"toggleCal;");

output.WriteLine("}");

//Both the functions below help in checking if the onblur

//event of TD was the raised due to the button

output.WriteLine("function "+onmouseoverfn);

output.WriteLine("{");

output.WriteLine("over=1;");

output.WriteLine("}");

output.WriteLine("function "+onmouseoutfn);

output.WriteLine("{");

output.WriteLine("over=0;");

output.WriteLine("}");

output.WriteLine("

");
output.Write("");

output.Write("");

output.Write("");

output.WriteLine("

");

//render the textBox server control by using the RenderControl method

dArea.RenderControl(output);

//render the button tag..we need no server buttons..but normal HTML buttons

//changed the button height to 29px,previously it was 22px on 20th august

output.Write("");

output.Write("6");

output.WriteLine("");

output.Write("

");

//The style attribute as provided by designer is not possible for the span tag

//since it should come just below the textbox..this is done by incrementing

//the style attribute "TOP" by the height of the textBox

// I commented the code below as I do not want to specify the top,left,z-index properties as
// my control is in // string style=this.Attributes["style"];

// delim=";";
// string[] con=style.Split(delim.ToCharArray());
//
// for(int i=0;i<con.getlength(0);i++)
{
="" if(con[i].indexof("top")!="-1)
//" string="" delimiter=":" ;
="" string[]="" subcon="con[i].Split(delimiter.ToCharArray());
//" subcon[1]="subcon[1].Remove(subcon[1].IndexOf("px"),2);
//" int="" otop="Convert.ToInt32(subcon[1]);
//" newtop="oTop+Convert.ToInt32(dArea.Height.Value);
//" con[i]="subcon[0]+":"+newTop.ToString()+"px";
//" }
="" }

="" style="" for(int="" i="0;i<con.GetLength(0);i++)
//" style+="con[i]+";";"
=""

="" the="" <span=""> tag is needed since only some tags provide DHTML

//support for changing z-Index.SPAN is one of them

// Here I commented the span tag line with the style property and added line with only span
// id below
//output.Write("");

output.Write("");

output.Write("");

output.Write("");

//The TD which houses the calendar and which suitably hides and dispalys the

//calendar control which is its child.

output.Write("");

output.Write("");

output.Write("

");

output.Write("");

output.Write("");

output.Write("");

output.Write("");

output.Write("

");

//render the calendar control

cal.RenderControl(output);

output.Write("

");

output.Write("

");

output.WriteLine("");

}

}

}

public class MyDesigner:ControlDesigner
{

string width;public override bool AllowResize
{

get

{

return true;
}

}

public override string GetDesignTimeHtml()
{

string designTimeHtml;

DateTimePicker controlDesigned=(DateTimePicker)this.Component;
string dateDesignTime=controlDesigned.SelectedDate;

string format=controlDesigned.FormatType;Calendar cal=new Calendar();

string delim="/";

string[] cons=dateDesignTime.Split(delim.ToCharArray());
int year=1;

int month=1;
int day=1;

if(cons.Length==3)
{

year=Convert.ToInt32(cons[2]);

month=Convert.ToInt32(cons[1]);

day=Convert.ToInt32(cons[0]);

}

if(year>1 || month>1 || day>1)
{

cal.SelectedDate=new DateTime(year,day,month);

if(format=="SHORT")
dateDesignTime=cal.SelectedDate.ToShortDateString();

else

{

dateDesignTime=cal.SelectedDate.ToLongDateString();

}

}

else

{
dateDesignTime="The date given is in wrong format";
}

width=this.Behavior.GetAttribute("Width",true).ToString();
designTimeHtml=""+"6";

return designTimeHtml;
}
}
}

Now when I click the calendar control and select the date in the modal window.date is not selected.application is hanged up.

thanks

Re: regarding datetimepicker control in asp.net 2.0

Christian Graus20-Aug-07 22:29

Re: how to fill a PDF form

20-Aug-07 22:29

No-one is going to read all of this. If you have a problem with a control from an article, try asking the article author, in the forum provided under the article.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

how to fill a PDF form

naumananwar20-Aug-07 21:44

naumananwar

20-Aug-07 21:44

i want to fill a pdf form the problem is that the from is at URL i have to get that form and then i have to fill it. e.g if http://www.mypaperlessoffice.com/cura_grayed/test.pdf is the form URL now how i can fill it?
thanks

Christian Graus20-Aug-07 22:23

How to Display PDF in Browser ?

20-Aug-07 22:23

If it's a PDF, then you can't hope to fill it online, at all. You'd have to download it, manipulate it on the server end, and then hope the site offers some way to upload it again.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Rizwan Bashir20-Aug-07 21:42

Rizwan Bashir

20-Aug-07 21:42

I have a list of PDF files which are uploaded into the database. Now on way back I recieve bytes which I Flush to browser but it ether ask for open or save option or it display nothing. Please help in any VB.Net or C# . My Code is
response.clear
response.contenttype="application/pdf"
response.flush

//tried either of below but both doesnt work
response.writebytes (myFileBytes)
// OR after writing a file from bytes
response.writefile(Filepath)
Response.end

Any help or suggestion ?

Regards

Rizwan Bashir
ALM Soft[^]

Vasudevan Deepak Kumar20-Aug-07 22:35

Vasudevan Deepak Kumar

20-Aug-07 22:35

Rizwan Bashir wrote:
but both doesnt work

Meaning?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Rizwan Bashir20-Aug-07 23:11

Rizwan Bashir

20-Aug-07 23:11

Meaning it does not display in browser which is my problem.

Rizwan Bashir
ALM Soft[^]

Christian Graus20-Aug-07 23:33

20-Aug-07 23:33

If write file doesn't work, then you have serious issues. What's actually happening ? Try losing the clear and flush calls, you don't need them.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )