CharlieDev
asked on
using c# to manipulate the look of the calendar object
Hi,
I am trying to get a calendar to display a different background for dates that have already passed.
I'm trying to use the dayrendered function, getting the datetimenow and seeing if the date in the calendar cell is lesser than this date and if it is applying a different background colour to it.
My attempted code is as follows but I get the error:
CS0019: Operator '>' cannot be applied to operands of type 'int' and 'string'
for the line : if (dblDay > e.Cell.Text)
So can I not do the comparing of the e.cell.text and todays day in this way or have i defined one of the variables incorrectly?
Many Thanks
I am trying to get a calendar to display a different background for dates that have already passed.
I'm trying to use the dayrendered function, getting the datetimenow and seeing if the date in the calendar cell is lesser than this date and if it is applying a different background colour to it.
My attempted code is as follows but I get the error:
CS0019: Operator '>' cannot be applied to operands of type 'int' and 'string'
for the line : if (dblDay > e.Cell.Text)
So can I not do the comparing of the e.cell.text and todays day in this way or have i defined one of the variables incorrectly?
Many Thanks
protected void Page_Load(object sender, EventArgs e)
{
hidden.Visible = false;
if (!IsPostBack)
{
OpenConnection();
SqlCommand command = new SqlCommand("exec usp_GetValidMonths", conn);
SqlDataReader reader = command.ExecuteReader();
ArrayList yearList = new ArrayList();
while (reader.Read())
{
string[] monthYear = SplitMonthYear(reader["month"].ToString());
if (!yearList.Contains(monthYear[1]))
yearList.Add(monthYear[1]);
}
yearList.Sort();
for (int i = 0; i < yearList.Count; i++)
{
ListItem item1 = new ListItem();
item1.Text = (string)"20" + yearList[i];
item1.Value = (string)yearList[i];
year.Items.Add(item1);
}
CloseConnection();
}
if (!IsPostBack)
{
DateTimeFormatInfo dfi = new DateTimeFormatInfo();
dfi.MonthDayPattern = "dd MMMM yy";
DateTime now = DateTime.Now;
string dateNow = now.ToString("m", dfi);
string strDay = dateNow.Split(' ')[0];
string strMonth = dateNow.Split(' ')[1];
string strYear = dateNow.Split(' ')[2];
string dateID = strMonth + " " + strYear;
string todayDate = strDay;
DisplayMonth(dateID , todayDate);
dateDrop.Text = strDay;
monthdrop.Text = strMonth;
year.Text = strYear;
DateTime datenowforcalendar = DateTime.Parse(dateNow);
Calendar1.SelectedDate = datenowforcalendar;
Calendar1.VisibleDate = datenowforcalendar;
}
}
private void calEvents_DayRender(object sender, System.Web.UI.WebControls.DayRenderEventArgs e)
{
DateTimeFormatInfo dformat = new DateTimeFormatInfo();
dformat.MonthDayPattern = "dd MMMM yy";
DateTime datetoday = DateTime.Now;
string todaysdate = datetoday.ToString("m", dformat);
string strgDay = todaysdate.Split(' ')[0];
int dblDay = Int32.Parse(strgDay);
int celltext = Int32.Parse(e.Cell.Text);
Style style = new Style();
if (dblDay > e.Cell.Text)
{
style.BackColor = System.Drawing.ColorTranslator.FromHtml("#666666");
}
}
SOLUTION
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because you have declared a style but you have never applied it to the day cell
do it something like this
e.Cell.BackColor = System.Drawing.Color.Wheat ;
or
e.Cell.BackColor = System.Drawing.ColorTransl ator.FromH tml("#6666 66");
do it something like this
e.Cell.BackColor = System.Drawing.Color.Wheat
or
e.Cell.BackColor = System.Drawing.ColorTransl
ASKER
Thanks, I'm not managing to get it to work. I am wondering if I am not calling the function.
Should the private void calEvents_DayRender just automatically run do you know??
Cheers
Should the private void calEvents_DayRender just automatically run do you know??
Cheers
the event should be fired and the function should be called when a day is being rendered in the calendar control.
put a break point inside the day render event and see if the break point is being hit or not
also please confirm that your calendar control has registered to the dayrender event
put a break point inside the day render event and see if the break point is being hit or not
also please confirm that your calendar control has registered to the dayrender event
ASKER
It seems that the dayrender event is not being executed. I am unsure how to tell with a breakpoint, I inserted one into the third line from the bottom of the dayrender event and then hovered over some of the above variables and they havent been filled, also i put a response.write at the very begining and this has not been displayed on the browser display aspx page.
I am now lost as to how to see if the calendar control has registered to the dayrender event.
Thanks for the help :)
I am now lost as to how to see if the calendar control has registered to the dayrender event.
Thanks for the help :)
in your asp.net code do you have OnDayRender="calEvents_Day Render"
ASKER
I didnt have that reference in the asp calendar,ops.
I've put it in and i get this error:
CS0122: 'calendar_fixtcalendar.cal Events_Day Render(obj ect, System.Web.UI.WebControls. DayRenderE ventArgs)' is inaccessible due to its protection level
code line: <asp:Calendar id="Calendar1"
which is from my aspx page code below
What does that mean?
Thank You
I've put it in and i get this error:
CS0122: 'calendar_fixtcalendar.cal
code line: <asp:Calendar id="Calendar1"
which is from my aspx page code below
What does that mean?
Thank You
<asp:Calendar id="Calendar1"
BorderStyle="Double"
BorderWidth="4px"
BorderColor="green"
DayStyle-BorderStyle="Solid"
DayStyle-BorderWidth="1px"
OnSelectionChanged="Date_Selected"
OnDayRender="calEvents_DayRender"
width="429px"
height="280px"
Font-Name="Verdana"
Font-Size="16px"
padding-left="5px"
NextPrevFormat="ShortMonth"
border-style="none"
text-decoration="none"
runat="server">
<TodayDayStyle />
<DayHeaderStyle Font-Bold="True"/>
<OtherMonthDayStyle ForeColor="gray"/>
<TitleStyle BackColor="#ffffff"
ForeColor="#000"
Font-Bold="True"/>
<SelectedDayStyle BackColor="#336633"
Font-Bold="True"
/>
<NextPrevStyle ForeColor="#000"
Font-Size="12px"/>
<SelectorStyle BackColor="#336633"
ForeColor="navy"
Font-Size="9px"/>
</asp:Calendar>
<asp:Label ID="Label1" runat="server" ></asp:Label>
</div>
ASKER CERTIFIED SOLUTION
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ASKER
Thanks, its running that code now
ASKER
Problem solved, for anyone that might want the code below is the working c# code
protected void calEvents_DayRender(object sender, System.Web.UI.WebControls.DayRenderEventArgs e)
{
DateTimeFormatInfo dformat = new DateTimeFormatInfo();
dformat.MonthDayPattern = "dd M";
DateTime datetoday = DateTime.Now;
string todaysdate = datetoday.ToString("m", dformat);
string strgDay = todaysdate.Split(' ')[0];
string strgMonth = todaysdate.Split(' ')[1];
int dblDay = Int32.Parse(strgDay);
int dblMonth = Int32.Parse(strgMonth);
int celltext = Int32.Parse(e.Day.DayNumberText);
int cellMonth = e.Day.Date.Month;
if ((dblDay > celltext && dblMonth == cellMonth) || dblMonth > cellMonth)
{
e.Cell.BackColor = System.Drawing.ColorTranslator.FromHtml("#eeeeee");
e.Cell.ForeColor = System.Drawing.ColorTranslator.FromHtml("#999999");
}
}
ASKER
Thanks again for your time, help and knowledge
ASKER
Can you see what might be wrong with my code :
style.BackColor = System.Drawing.ColorTransl
I did just pinch it from an example i found on here