When I'm using my drop down list, and trying to store the value of which i'm wanting to store. It is only storing like the default value (So for example, I have a drop down list with the years from 2015 to 2020. If I choose 2018, it'll pass back to the original of 2015).
I am then attempted to combine all three drop down lists I have (Day Month and Year) into one DateTime variable. However everything then just goes back to default.
protected void Page_Load(object sender, EventArgs e)
{
int[] days = new int[31];
for (int i = 0; i < days.Length; i++)
{
days[i] = i + 1;
}
//Binding the information to drop downlist.
ddlDayCI.DataSource = days;
ddlDayCI.DataBind();
ddlDayCO.DataSource = days;
ddlDayCO.DataBind();
int[] months = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
ddlMonthCI.DataSource = months;
ddlMonthCI.DataBind();
ddlMonthCO.DataSource = months;
ddlMonthCO.DataBind();
int[] years = new int[] { 2015, 2016, 2017, 2018, 2019, 2020 };
ddlYearCI.DataSource = years;
ddlYearCI.DataBind();
ddlYearCO.DataSource = years;
ddlYearCO.DataBind();
}
protected void CheckAvailability_Click(object sender, EventArgs e)
{
int yearCI = Convert.ToInt32(ddlYearCI.SelectedItem.Value);
int monthCI = Convert.ToInt32(ddlMonthCI.SelectedItem.Value);
int dayCI = Convert.ToInt32(ddlDayCI.SelectedItem.Value);
DateTime dateOfCheckIn = new DateTime(yearCI, monthCI, dayCI);
int yearCO = Convert.ToInt32(ddlYearCO.SelectedItem.ToString());
int monthCO = Convert.ToInt32(ddlMonthCO.SelectedItem.ToString());
int dayCO = Convert.ToInt32(ddlDayCO.SelectedItem.ToString());
DateTime dateOfCheckOut = new DateTime(yearCO, monthCO, dayCO);
testing.Text = dateOfCheckIn.ToString();
}
Is anyone able to aid in me attempting to fix this? testing.Text is simply a label outputting what I entered, just incase I forgot to put a breakpoint.
This issues occurs on both the check in and check out values.
Thanks
use IsPostBack Event in page_load
try:
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
FillDropDowns();
}
}
protected void FillDropDowns()
{
int[] days = new int[31];
for (int i = 0; i < days.Length; i++)
{
days[i] = i + 1;
}
//Binding the information to drop downlist.
ddlDayCI.DataSource = days;
ddlDayCI.DataBind();
ddlDayCO.DataSource = days;
ddlDayCO.DataBind();
int[] months = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
ddlMonthCI.DataSource = months;
ddlMonthCI.DataBind();
ddlMonthCO.DataSource = months;
ddlMonthCO.DataBind();
int[] years = new int[] { 2015, 2016, 2017, 2018, 2019, 2020 };
ddlYearCI.DataSource = years;
ddlYearCI.DataBind();
ddlYearCO.DataSource = years;
ddlYearCO.DataBind();
}
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