I am having trouble comparing two dates. One is captured from input, other one is predefined. Please see the code below: I enter this date in the textfield: 04-12-2001
Dim idatum As Date
If Date.TryParseExact(aankoopdatumIDclm.Text, "dd-mm-yyyy", Nothing, System.Globalization.DateTimeStyles.None, idatum) = False Then 'idatum is true at this point...
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comparing two dates with comparevalidator
View 2 RepliesI am developing library management system in asp.net C#. i want to calculate fine by comparing isuue date and return date. Here Fine is calculated as:
Find the no of days between issue date and return date.
If no of days are greater than 10 then calculate fine using the formula given below
Fine=No. of Days * 10 Rs. (i.e 10 Rs fine per day)
Otherwise there will be no fine.
So i am inserting the record of isuue date in issue table (data type- Date in sql server) so how I calculate by comparing the return date.
I have two tables along with some of its attributes as follows:
ProjDetails: ProjID, StartDate, EndDate
ActDetails: ActID, AStartDate, AEndDate,
What i would like to do is to compare the AStartDate with both StartDate and EndDate which will be done in a DetailsView both insert and edit mode. This is to make sure AStartDate is within both those dates. (Same goes for AEndDate)
At first i though of extracting the StartDate and EndDate from the database and then make the comparison. But i am having problem because both StartDate and EndDate are data type "date" as follows:
Dim strProjDate As String
Using myConn3 As New SqlConnection(connString)
myConn3.Open()
Dim command3 As SqlCommand = myConn3.CreateCommand()
command3.Connection = myConn3
command3.CommandText = "SELECT StartDate FROM ProjDetails WHERE ProjID = @ProjID"
With command3.Parameters
.Add(New SqlParameter("@ProjID", TB_GenerateActID.Text))
End With
strProjDate = command3.ExecuteNonQuery()
TB_ProjStartDate.Text = strProjDate.ToString
End Using
The above code only displays "-7" in the TB_ProjStartDate textbox.
By the way, I am using Web Developer 2008, VB.net.
I need some pointers to start on this.We are building a time off application where three instances of a calendar control will be displayed ( prev - current and next month) now users can click on various dates accross all three instances and then a count of number of days should be diaplyed in the parent textbox.
To begin with this, i started with adding the dates clicked by the user in Calendar2_SelectionChanged method into a list<> so that i can get the all dates user clicked and then add it to calander's selected dates collection. But this throws an e" object reference not set" error.
Is there anyother way to get all the dates that user click onthe calendar( note the dates doesn't get highlighed so seleteddates doesnt work)does anyone has a good example for this.
once a user select an item from dropdownlist > Dates from DB are shown on calendar in pink color.
The problem now is when i want to select new dates the selected dates(in pink) become deselected .. I want them to stay selected so i can know which dates are already used .
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i have to date say in MM/DD/YYYY format "1/1/2010" and 1/30/2010". now i want to find dates which comes on monday. so out out will be 01/04/2010, 1/11/2010, 01/18/2010, 01/25/2010
View 2 RepliesHow to display dynamic header for datalist control(Dates are dynamic).Also i want header in each row.I want something like this.Words in bold are headers.Header also in each
row.8/1/2010,8/8/2010,8/15/2010,8/22/2010 are dynamic dates whic change every month based on user selecting date from datecontrol.
HeadCount 8/1/2010 8/8/2010 8/15/2010 8/22/2010
Forecaster HC 447 446 441 432
Agents Scheduled 447 446 441 432
I am saving to dates (fromdate) and (todate) into DB .. And then I want to view all the days (from to) and the dates in between , highlited in a calendar control ,, how can i do that ? I know how to highlight dates saved into calendar but how can i do the same to the dates inbetween ?
View 1 RepliesI want a user to select (fromdate) from Calendar1 and (todate) from Calendar2, and then i want all dates in between to be saved in database .
View 12 RepliesIf i have three textboxes in my vb.net webform.
Textbox1.text="Sumit"
Textbox2.text="4-Dec-2010"
Textbox3.text="1-Jan-2011"
I want if dates selected are in between textbox2 dates and textbox3 dates then textbox1.text="sumit" else textbox1.text="No dates"
i want to use a ajax calender extender in which when user clixcks on button caleder show only dates of current month not previous dates.i dont want to disable dates. i should not apper on current month calender. means it should start from 1 and end to 30 or 31
View 3 RepliesI am generating multi-series graphs with the date along the X-Axis. The problem is that not all of the series in the graph have the same dates in the date range. Meaning that if I choose 1 Feb through 30 Apr that one series may have data that starts at 1 Feb but only goes through the end of March but another series may have data for the entire date range. This skews the charts I need to create. Go, given the date range taken at the begining of the query I'd like to generate a list of dates and populate the data to be graphed, padding those series with 0's for those dates that have no data.
View 3 RepliesI am working in asp.net 2.0 application programing.
How to use a compare validator for comparing two date.
I have an if/then statement in my code behind that looks what which radio button of a radio button group a user selected and then runs some other code. I'm running into a problem that I hadn't forseen where a user skips the question. (It isn't a required field). So, how do I tell my code behind to first check to see if the user made a selection, and then, if they did, do my if/then...
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I applied regular expression validator on date of birth and Missing date for a missing person. the missing date should be greater than the date of birth . I applied compare vallidator but it is not working properly. it comparing day of date of birth with day of missing date, both months and years...
if i give...
date of birth: 2/2/1980
Missing date: 1/2/1981
it is giving the error message...
I applied this regular expression:
^((0?[13578]|10|12)(-|/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[01]?))(-|/)((19)([2-9])(d{1})|(20)([01])(d{1})|([8901])(d{1}))|(0?[2469]|11)(-|/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[0]?))(-|/)((19)([2-9])(d{1})|(20)([01])(d{1})|([8901])(d{1})))$
I develop one concept, i want to query how to compare marks/reports all student in a class, compare subjects, previous marks/reports. another concept in my page i display charts in this charts i put a dropdownlist in this ddl pie, line, bar charts are their but i selected any one that chart type visible
View 1 RepliesI have a Datalist in which i m entering values to form a shoping cart. so when a select the check box the respective value goes in into the datalist and now if user again select that checkbox and submit i cant to check that is their any previous enrty with same name because it is a unique row in the datalist.
code:
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this is creating an error if if newly added row is already in datalist...so plz find me a way to check the new row with already present row and i have also set the primary key to table also.
i have two labels inside the gridview and i want to compare it if they are equal or not!
lblAns and lblStudAns
How can i compare selected rows in the other page?
Can i get selected values with this code?
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I have a GridView Column "Gender". After displaying datagrid, I m selecting dropdown which is not in datagrid.
Dropdown list is in the same page. When I select dropdown Gender as male or female, I have to validate that Gender against GridView Column. If that Gender Exist in GridView, I have to display message.
is there any way to get all dates b/w two date for example
14/10/2010
22/10/2010
so there are 9 days b/w two dates,i wanted to do it asp.net
I have a condition to check weekdays with a particular time corresponding
to that day that were added to a grid view using a drop down list and two text boxes.
The drop down list has weekdays and textboxes has from and to time.
I have to verify a condition to avoid duplication of same day with same time should not occur in the table twice.
(i have used time picker jquery to get time.)
how should i write the condition in sql and use that in C#
I am dealing with dynamic fields in a for loop and now I need to retrieve the values that are being typed in the dynamic fields, any idea how can I do that? 2)also when I click the submit button, upon postback, the dynamic fields have gone missing, have been trying to slove that, but i did not, anyone knows how to deal with this? kinda urgent :x
3) and How do you compare the 2 dynamic fields? For eg: Im comparing the tbSch[i] to tbSch[i], so that the dates cannot be the same, am using a compare validator, but it throws me error that im comparing the same fields :) even though i change to ("tbSch" + i) for both, sorry Will provide my code snippet as follow :D tbNum is a textbox where user enter numbers and click generate
protected void btnGen_Click(object sender, EventArgs e)
{
for (int i = 0; i < Convert.ToInt32(tbNum.Text); i++)
{
// label and textbox needed
Label lblSch = new Label();
TextBox tbSch = new TextBox();
Label lblWsGrp = new Label();
DropDownList ddlWsGrp = new DropDownList();
CompareValidator cvSame = new CompareValidator();
cvSame.ID = "cvSame" + i;
cvSame.ErrorMessage = "Date cannot be the same";
cvSame.Operator = ValidationCompareOperator.NotEqual;
cvSame.Type = ValidationDataType.Date;
cvSame.Display = ValidatorDisplay.Dynamic;
cvSame.EnableViewState = true;
cvSame.ControlToValidate = (tbSch.ID);<<<<< what should be the value in here?
cvSame.ControlToCompare = (tbSch.ID);<<<<<<<<<< and here?
//schdule date
lblSch.ID = "lblSch" + i;
lblSch.Text = "Session Date : ";
lblSch.EnableViewState = true;
tbSch.ID = "tbSch" + i;
tbSch.Width = 210;
tbSch.Height = 27;
tbSch.EnableViewState = true;
//workshop grp
lblWsGrp.ID = "lblwsgrp" + i;
lblWsGrp.Text = "Workshop Group : ";
lblWsGrp.EnableViewState = true;
ddlWsGrp.ID = "ddlWsGrp" + i;
ddlWsGrp.Height = 27;
ddlWsGrp.Width = 210;
ddlWsGrp.EnableViewState = true;
ddlWsGrp.Items.Add("1");
ddlWsGrp.Items.Add("2");
//table to store data
TableRow trow = new TableRow();
TableRow trow2 = new TableRow();
//row1
TableCell tc1 = new TableCell();
TableCell tc2 = new TableCell();
TableCell tc3 = new TableCell();
TableCell tc4 = new TableCell();
//row2
TableCell tc5 = new TableCell();
TableCell tc6 = new TableCell();
TableCell tc7 = new TableCell();
TableCell tc8 = new TableCell();
TableCelltc9 = new TableCell();
tc1.Controls.Add(lblSch);
tc2.Controls.Add(tbSch);
tc3.Controls.Add(lblWsGrp);
tc4.Controls.Add(ddlWsGrp);
tc5.Controls.Add(space);
tc6.Controls.Add(CeSess);
tc7.Controls.Add(space);
tc8.Controls.Add(space);
tc9.Controls.Add(cvSame)
trow.Cells.Add(tc1);
trow.Cells.Add(tc2);
trow.Cells.Add(tc3);
trow.Cells.Add(tc4);
trow2.Cells.Add(tc5);
trow2.Cells.Add(tc6);
trow2.Cells.Add(tc7);
trow2.Cells.Add(tc8);
trow2.Cells.Add(t9);
this.table3.Rows.Add(trow);
this.table3.Rows.Add(trow2);
}
}
i am using C# and VS 2008. how can i compare my datagrid column with current system date/time with current system date.
let us say current value in Date1 column is: Tuesday, February 16, 2010
foreach (GridViewRow r in GridView1.Rows)