displaying total no. of days between two dates

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I have 3 textbox.first two text box contains calander controls(from date/to date).i want to implement such a functionality that,as n when i select the second textbox date,total no of days should be displayed in the third textbox,that is (to-from).i have reached to this extent:

DateTime a, b;
a = Convert.ToDateTime(TextBox1.Text);
b = Convert.ToDateTime(TextBox2.Text);

System.TimeSpan span = b - a;
int ddays = (int)span.TotalDays;
textbox3.Text = Convert.ToString(ddays);

but,i am not able to display days in third textbox as i said before.The question is,where to implement this code such that i can get the desired output.Any help would be greatly appriciated.

Posted 15-Jan-13 23:48pm

Thanks7872

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3 solutions

Solution 2

I have tried with your code and it did worked for me. Try to add a break point on your code and check if the values are coming at your text box control or not ?

Posted 16-Jan-13 0:03am

Avishek Pat

Solution 1

you can add code in second calendar Selection changed event

C#

protected void Calendar2_SelectionChanged(object sender, EventArgs e)
        {

        }

Posted 15-Jan-13 23:58pm

josh-jw

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Hemant Singh Rautela · Accepted Answer · 2013-01-16T00:05:00

You can aplly by using 2 way...
1) textbox text changed event
2) button click envet

C#

<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
       <br />
       <asp:TextBox ID="TextBox4" runat="server" AutoPostBack="True"
           ontextchanged="TextBox4_TextChanged"></asp:TextBox>
       <asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Button" />
       <br />
       <asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>

C#

protected void Button2_Click(object sender, EventArgs e)
    {
        DateTime a, b;
        a = Convert.ToDateTime(TextBox3.Text);
        b = Convert.ToDateTime(TextBox4.Text);

        System.TimeSpan span = b - a;
        int ddays = (int)span.TotalDays;
        TextBox5.Text = Convert.ToString(ddays);
    }
    protected void TextBox4_TextChanged(object sender, EventArgs e)
    {
        DateTime a, b;
        a = Convert.ToDateTime(TextBox3.Text);
        b = Convert.ToDateTime(TextBox4.Text);

        System.TimeSpan span = b - a;
        int ddays = (int)span.TotalDays;
        TextBox5.Text = Convert.ToString(ddays);
    }

If you find, it works for you please mark it as ans.

Thanks
Asp.Net/C#.Net help[^]
Hemant Singh