在asp.net c中选择开始日期和结束日期时，自动生成另一个文本框中的天数＃ [英] auto generate number of days in another textbox upon selection of start and end date in asp.net c#

问题描述

我有一个为员工创建休假申请的任务..它包含3个标签，其中一个带有申请休假，其中包含



1.type fo leave



2.描述



3.begin date



4.end date



5.天数



开始日期和结束日期包含日历扩展器，一旦我选择了两个日期，光标应该指向文本框的天数，它应该计算leav将采取的总天数...请帮我解决这个问题..



i试过这个

 protected void BtnApply_Click（object sender，EventArgs e）
 {
 MTMSDTO objc = new MTMSDTO（）; 
 
 int Flag = 0; 
 
 LblLogdInUser.Text = Session [EmpName]。ToString（）; 
 objc.LoggedInUser = LblLogdInUser.Text; 
 objc.TypeofLeave = DrpTypeofLeave.SelectedItem.Text; 
 
字符串日期; 
 date = Convert.ToDateTime（TxtBeginDate.Text）.ToString（dd / MM / yyyy）; 
 
 DateTime dt = new DateTime（）; 
 dt = Convert.ToDateTime（date）; 
 
 objc.BeginDate = dt; 
 objc.EndDate = Convert.ToDateTime（TxtEndDate.Text）; 
 objc.Description = TxtDescription.Text; 
 objc.NumofDays = Convert.ToInt32（TxtNumofDays.Text）; 
 //objc.EmpName = LblLogdInUser.Text; 
 
 
 int X = obj.InsertLeave（objc）; 
 {
 if（X> = 0）
 {
 Flag = 1; 
} 
 else 
 {
 Flag = 0; 
 
} 
} 
 
 if（Flag == 1）
 {
 LblSuccess.Visible = true; 
 LblSuccess.Text =数据已成功添加; 
 DrpTypeofLeave.ClearSelection（）; 
 TxtBeginDate.Text =; 
 TxtEndDate.Text =; 
 TxtDescription.Text =; 
 TxtNumofDays.Text =; 
} 
其他
 {
 LblErr.Visible = true; 
 LblErr.Text =无法添加数据!!!; 
} 
} 
 
 protected void TxtNumofDays_TextChanged1（对象发送者，EventArgs e）
 {
 MTMSDTO objc = new MTMSDTO（）; 
 objc.NumofDays = Convert.ToInt32（TxtNumofDays.Text）; 
 TxtNumofDays.Focus（）; 
} 
 
 protected void TxtEndDate_TextChanged（object sender，EventArgs e）
 {
 DateTime BeginDate = Convert.ToDateTime（TxtBeginDate.Text）; 
 DateTime EndDate = Convert.ToDateTime（TxtEndDate.Text）; 
 TimeSpan diff = EndDate.Subtract（BeginDate）; 
 TxtNumofDays.Text = diff.Days.ToString（）; 
} 

我在我的数据库中获取天数值，但它没有显示在文本框中，光标也没有指向到运行d prjct的天数的文本框..

解决方案

如果你的文本框被包装在一些更新面板中，那么确保面板在回发后得到更新

i got a task for creating leave application for the employees.. it contains 3 tabs one with apply leave which has

1.type fo leave

2.description

3.begin date

4.end date

5.number of days

those begin and end date contains calendar extenders and once i select both dates , cursor should point on number of days textbox and it should calculate the total number of days leav will b taken... please help me sort this out..

i have tried this

protected void BtnApply_Click(object sender, EventArgs e)
        {
            MTMSDTO objc = new MTMSDTO();

            int Flag = 0;

            LblLogdInUser.Text = Session["EmpName"].ToString();
            objc.LoggedInUser = LblLogdInUser.Text;
            objc.TypeofLeave = DrpTypeofLeave.SelectedItem.Text;

            string date;
            date = Convert.ToDateTime(TxtBeginDate.Text).ToString("dd/MM/yyyy");

            DateTime dt = new DateTime();
            dt = Convert.ToDateTime(date);

            objc.BeginDate = dt;
            objc.EndDate = Convert.ToDateTime(TxtEndDate.Text);
            objc.Description = TxtDescription.Text;
            objc.NumofDays = Convert.ToInt32(TxtNumofDays.Text);
            //objc.EmpName = LblLogdInUser.Text;
            

            int X = obj.InsertLeave(objc);
            {
                if (X >= 0)
                {
                    Flag = 1;
                }
                else
                {
                    Flag = 0;

                }
            }

            if (Flag == 1)
            {
                LblSuccess.Visible = true;
                LblSuccess.Text = "Data Added Successfully";
                DrpTypeofLeave.ClearSelection();
                TxtBeginDate.Text = "";
                TxtEndDate.Text = "";
                TxtDescription.Text = "";
                TxtNumofDays.Text = "";
            }
            else
            {
                LblErr.Visible = true;
                LblErr.Text = "Failed To Add Data!!!";
            }
        }

protected void TxtNumofDays_TextChanged1(object sender, EventArgs e)
        {
            MTMSDTO objc = new MTMSDTO();
            objc.NumofDays = Convert.ToInt32(TxtNumofDays.Text);
            TxtNumofDays.Focus();
        }

        protected void TxtEndDate_TextChanged(object sender, EventArgs e)
        {
            DateTime BeginDate = Convert.ToDateTime(TxtBeginDate.Text);
            DateTime EndDate = Convert.ToDateTime(TxtEndDate.Text);
            TimeSpan diff = EndDate.Subtract(BeginDate);
            TxtNumofDays.Text = diff.Days.ToString();
        }

im getting number of days value in my database but its not showing in the textbox and cursor is not pointing too to the textbox of numberof days wen i run d prjct..

解决方案

If your textbox is wrapped in some update panel then make sure panel is getting updated after postback

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