validation for a texbox contianing calender

Question

greeny_1984 14 Posting Whiz

15 Years Ago

hi everyone,
iam having a textbox in my application containg a calender iamge as shown below,which when clicked displays a calender,on clicking on the calender,the date is displayed in the textbox.

<asp:TextBox ID="txtfromdate"  runat="server" Width="100px"></asp:TextBox>   <A id="A5" href="javascript:show_calendar('aspnetForm.ctl00_ContentPlaceHolder1_txtfromdate','','','DD/MM/YYYY');" runat="server">
                 <img id="Img5" border="0" height="20" src="../images/cal.gif" runat="server" alt="Pick a date" width="24"/></A>

I want to validate this textbox on blur event but iam getting alert even when there is date text present in the textbox.The calender is working on a internal javascript.
Can any one suggest how to not get alert in "on blur" event.It is working for validation on submit button click.

javascript

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Latest Post 15 Years Ago Latest Post by greeny_1984

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Shanti C 106 Posting Virtuoso

15 Years Ago

post your validation function also...

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greeny_1984 14 Posting Whiz · Answer 1 · 2008-08-01T11:28:56+00:00

greeny_1984 14 Posting Whiz

15 Years Ago

function v_dob(nm)
     {
       var mn=document.getElementById(nm); 
      var valfal="false";
       var val=mn.value;
     
       for (var i=0; i<val.length; i++)
        {
		if (val.charAt(i) != " ")
		 {
			valfal="true";
		 }
	   }
    
       if(valfal!="true")
               { 
                                 return false;
               }
        else
               {
                  
                   return true;
                }
    }

Iam attaching datetimepicker along with this message

datetimepicker.txt (13.93 KB)

The attachment preview is chopped off after the first 10 KB. Please download the entire file.

//Javascript name: My Date Time Picker
//Date created: 16-Nov-2003 23:19
//Scripter: TengYong Ng
//Website: http://www.rainforestnet.com
//Copyright (c) 2003 TengYong Ng
//FileName: DateTimePicker.js
//Version: 0.8
//Contact: contact@rainforestnet.com
// Note: Permission given to use this script in ANY kind of applications if
//       header lines are left unchanged.

//Global variables
var winCal;
var dtToday=new Date();
var Cal;
var docCal;
var MonthName=["January", "February", "March", "April", "May", "June","July", 
	"August", "September", "October", "November", "December"];
var WeekDayName=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];	
var exDateTime;//Existing Date and Time

//Configurable parameters
var cnTop="200";//top coordinate of calendar window.
var cnLeft="500";//left coordinate of calendar window
var WindowTitle ="DateTime Picker";//Date Time Picker title.
var WeekChar=2;//number of character for week day. if 2 then Mo,Tu,We. if 3 then Mon,Tue,Wed.
var CellWidth=20;//Width of day cell.
var DateSeparator="/";//Date Separator, you can change it to "/" if you want.
var TimeMode=24;//default TimeMode value. 12 or 24

var ShowLongMonth=true;//Show long month name in Calendar header. example: "January".
var ShowMonthYear=true;//Show Month and Year in Calendar header.
var MonthYearColor="#cc0033";//Font Color of Month and Year in Calendar header.
var WeekHeadColor="#0099CC";//Background Color in Week header.
var SundayColor="#6699FF";//Background color of Sunday.
var SaturdayColor="#CCCCFF";//Background color of Saturday.
var WeekDayColor="white";//Background color of weekdays.
var FontColor="blue";//color of font in Calendar day cell.
var TodayColor="#FFFF33";//Background color of today.
var SelDateColor="#FFFF99";//Backgrond color of selected date in textbox.
var YrSelColor="#cc0033";//color of font of Year selector.
var ThemeBg="";//Background image of Calendar window.
//end Configurable parameters
//end Global variable

function NewCal(pCtrl,pFormat,pShowTime,pTimeMode)
{
	Cal=new Calendar(dtToday);
	if ((pShowTime!=null) && (pShowTime))
	{
		Cal.ShowTime=true;
		if ((pTimeMode!=null) &&((pTimeMode=='12')||(pTimeMode=='24')))
		{
			TimeMode=pTimeMode;
		}		
	}	
	if (pCtrl!=null)
		Cal.Ctrl=pCtrl;
	if (pFormat!=null)
		Cal.Format=pFormat.toUpperCase();
	
	exDateTime=document.getElementById(pCtrl).value;
	if (exDateTime!="")//Parse Date String
	{
		var Sp1;//Index of Date Separator 1
		var Sp2;//Index of Date Separator 2 
		var tSp1;//Index of Time Separator 1
		var tSp1;//Index of Time Separator 2
		var strMonth;
		var strDate;
		var strYear;
		var intMonth;
		var YearPattern;
		var strHour;
		var strMinute;
		var strSecond;
		//parse month
		Sp1=exDateTime.indexOf(DateSeparator,0)
		Sp2=exDateTime.indexOf(DateSeparator,(parseInt(Sp1)+1));
		
		if ((Cal.Format.toUpperCase()=="DDMMYYYY") || (Cal.Format.toUpperCase()=="DDMMMYYYY"))
		{
			strMonth=exDateTime.substring(Sp1+1,Sp2);
			strDate=exDateTime.substring(0,Sp1);
		}
		else if ((Cal.Format.toUpperCase()=="MMDDYYYY") || (Cal.Format.toUpperCase()=="MMMDDYYYY"))
		{
			strMonth=exDateTime.substring(0,Sp1);
			strDate=exDateTime.substring(Sp1+1,Sp2);
		}
		if (isNaN(strMonth))
			intMonth=Cal.GetMonthIndex(strMonth);
		else
			intMonth=parseInt(strMonth,10)-1;	
		if ((parseInt(intMonth,10)>=0) && (parseInt(intMonth,10)<12))
			Cal.Month=intMonth;
		//end parse month
		//parse Date
		if ((parseInt(strDate,10)<=Cal.GetMonDays()) && (parseInt(strDate,10)>=1))
			Cal.Date=strDate;
		//end parse Date
		//parse year
		strYear=exDateTime.substring(Sp2+1,Sp2+5);
		YearPattern=/^\d{4}$/;
		if (YearPattern.test(strYear))
			Cal.Year=parseInt(strYear,10);
		//end parse year
		//parse time
		if (Cal.ShowTime==true)
		{
			tSp1=exDateTime.indexOf(":",0)
			tSp2=exDateTime.indexOf(":",(parseInt(tSp1)+1));
			strHour=exDateTime.substring(tSp1,(tSp1)-2);
			Cal.SetHour(strHour);
			strMinute=exDateTime.substring(tSp1+1,tSp2);
			Cal.SetMinute(strMinute);
			strSecond=exDateTime.substring(tSp2+1,tSp2+3);
			Cal.SetSecond(strSecond);
		}	
	}
	winCal=window.open("","DateTimePicker","toolbar=0,status=0,menubar=0,fullscreen=no,width=195,height=245,resizable=0,top="+cnTop+",left="+cnLeft);
	docCal=winCal.document;
	RenderCal();
}

function RenderCal()
{
	var vCalHeader;
	var vCalData;
	var vCalTime;
	var i;
	var j;
	var SelectStr;
	var vDayCount=0;
	var vFirstDay;

	docCal.open();
	docCal.writeln("<html><head><title>"+WindowTitle+"</title>");
	docCal.writeln("<script>var winMain=window.opener;</script>");
	docCal.writeln("</head><body background='"+ThemeBg+"' link="+FontColor+" vlink="+FontColor+"><form name='Calendar'>");

	vCalHeader="<table border=1 cellpadding=1 cellspacing=1 width='100%' align=\"center\" valign=\"top\">\n";
	//Month Selector
	vCalHeader+="<tr>\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0><tr><td align='left'>\n";
	vCalHeader+="<select name=\"MonthSelector\" onChange=\"javascript:winMain.Cal.SwitchMth(this.selectedIndex);winMain.RenderCal();\">\n";
	for (i=0;i<12;i++)
	{
		if (i==Cal.Month)
			SelectStr="Selected";
		else
			SelectStr="";	
		vCalHeader+="<option "+SelectStr+" value >"+MonthName[i]+"\n";
	}
	vCalHeader+="</select></td>";
	//Year selector
	vCalHeader+="\n<td align='right'><a href=\"javascript:winMain.Cal.DecYear();winMain.RenderCal()\"><b><font color=\""+YrSelColor+"\"><</font></b></a><font face=\"Verdana\" color=\""+YrSelColor+"\" size=2><b> "+Cal.Year+" </b></font><a href=\"javascript:winMain.Cal.IncYear();winMain.RenderCal()\"><b><font color=\""+YrSelColor+"\">></font></b></a></td></tr></table></td>\n";	
	vCalHeader+="</tr>";
	//Calendar header shows Month and Year
	if (ShowMonthYear)
		vCalHeader+="<tr><td colspan='7'><font face='Verdana' size='2' align='center' color='"+MonthYearColor+"'><b>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</b></font></td></tr>\n";
	//Week day header
	vCalHeader+="<tr bgcolor="+WeekHeadColor+">";
	for (i=0;i<7;i++)
	{
		vCalHeader+="<td align='center'><font face='Verdana' size='2'>"+WeekDayName[i].substr(0,WeekChar)+"</font></td>";
	}
	vCalHeader+="</tr>";	
	docCal.write(vCalHeader);
	
	//Calendar detail
	CalDate=new Date(Cal.Year,Cal.Month);
	CalDate.setDate(1);
	vFirstDay=CalDate.getDay();
	vCalData="<tr>";
	for (i=0;i<vFirstDay;i++)
	{
		vCalData=vCalData+GenCell();
		vDayCount=vDayCount+1;
	}
	for (j=1;j<=Cal.GetMonDays();j++)
	{
		var strCell;
		vDayCount=vDayCount+1;
		if ((j==dtToday.getDate())&&(Cal.Month==dtToday.getMonth())&&(Cal.Year==dtToday.getFullYear()))
			strCell=GenCell(j,true,TodayColor);//Highlight today's date
		else
		{
			if (j==Cal.Date)
			{
				strCell=GenCell(j,true,SelDateColor);
			}
			else
			{	 
				if (vDayCount%7==0)
					strCell=GenCell(j,false,SaturdayColor);
				else if ((vDayCount+6)%7==0)
					strCell=GenCell(j,false,SundayColor);
				else
					strCell=GenCell(j,null,WeekDayColor);
			}		
		}						
		vCalData=vCalData+strCell;

		if((vDayCount%7==0)&&(j<Cal.GetMonDays()))
		{
			vCalData=vCalData+"</tr>\n<tr>";
		}
	}
	docCal.writeln(vCalData);	
	//Time picker
	if (Cal.ShowTime)
	{
		var showHour;
		showHour=Cal.getShowHour();		
		vCalTime="<tr>\n<td colspan='7' align='center'>";
		vCalTime+="<input type='text' name='hour' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+showHour+" onchange=\"javascript:winMain.Cal.SetHour(this.value)\">";
		vCalTime+=" : ";
		vCalTime+="<input type='text' name='minute' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Minutes+" onchange=\"javascript:winMain.Cal.SetMinute(this.value)\">";
		vCalTime+=" : ";
		vCalTime+="<input type='text' name='second' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Seconds+" onchange=\"javascript:winMain.Cal.SetSecond(this.value)\">";
		if (TimeMode==12)
		{
			var SelectAm =(parseInt(Cal.Hours,10)<12)? "Selected":"";
			var SelectPm =(parseInt(Cal.Hours,10)>=12)? "Selected":"";

			vCalTime+="<select name=\"ampm\" onchange=\"javascript:winMain.Cal.SetAmPm(this.options[this.selectedIndex].value);\">";
			vCalTime+="<option "+SelectAm+" value=\"AM\">AM</option>";
			vCalTime+="<option "+SelectPm+" value=\"PM\">PM<option>";
			vCalTime+="</select>";
		}	
		vCalTime+="\n</td>\n</tr>";
		docCal.write(vCalTime);
	}	
	//end time picker
	docCal.writeln("\n</table>");
	docCal.writeln("</form></body></html>");
	docCal.close();
}

function GenCell(pValue,pHighLight,pColor)//Generate table cell with value
{
	var PValue;
	var PCellStr;
	var vColor;
	var vHLstr1;//HighLight string
	var vHlstr2;
	var vTimeStr;
	
	if (pValue==null)
		PValue="";
	else
		PValue=pValue;
	
	if (pColor!=null)
		vColor="bgcolor=\""+pColor+"\"";
	else
		vColor="";	
	if ((pHighLight!=null)&&(pHighLight))
		{vHLstr1="color='red'><b>";vHLstr2="</b>";}
	else
		{vHLstr1=">";vHLstr2="";}	
	
	if (Cal.ShowTime)
	{
		vTimeStr="winMain.document.getElementById('"+Cal.Ctrl+"').value+=' '+"+"winMain.Cal.getShowHour()"+"+':'+"+"winMain.Cal.Minutes"+"+':'+"+"winMain.Cal.Seconds";
		if (TimeMode==12)
			vTimeStr+="+' '+winMain.Cal.AMorPM";
	}	
	else
		vTimeStr="";		
	PCellStr="<td "+vColor+" width="+CellWidth+" align='center'><font face='verdana' size='2'"+vHLstr1+"<a href=\"javascript:winMain.document.getElementById('"+Cal.Ctrl+"').value='"+Cal.FormatDate(PValue)+"';"+vTimeStr+";window.close();\">"+PValue+"</a>"+vHLstr2+"</font></td>";
	return PCellStr;
}

function Calendar(pDate,pCtrl)
{
	//Properties
	this.Date=pDate.getDate();//selected date
	this.Month=pDate.getMonth();//selected month number
	this.Year=pDate.getFullYear();//selected year in 4 digits
	this.Hours=pDate.getHours();	
	
	if (pDate.getMinutes()<10)
		this.Minutes="0"+pDate.getMinutes();
	else
		this.Minutes=pDate.getMinutes();
	
	if (pDate.getSeconds()<10)
		this.Seconds="0"+pDate.getSeconds();
	else		
		this.Seconds=pDate.getSeconds();
		
	this.MyWindow=winCal;
	this.Ctrl=pCtrl;
	this.Format="ddMMyyyy";
	this.Separator=DateSeparator;
	this.ShowTime=false;
	i

Shanti C 106 Posting Virtuoso · Answer 2 · 2008-08-01T15:17:21+00:00

i dont know about asp...
but i think do validation to the text box in normal way..
i have implemented the same application in PHP and the text box with calender...i have used normal validation code for that...
check your code again..

greeny_1984 14 Posting Whiz · Answer 3 · 2008-08-02T11:11:45+00:00

hi,
Thanks for the reply.I have already mentioned in my previous post that validation is working fine in on whole form submission,but not for onblur event,the reason i guess may be due to since javascript is acting internally on the textbox,it is not working using onchange or onblur events.Hope u got my problem.

validation for a texbox contianing calender

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