how to update dropdown in asp.net when using year of date entered by user

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my problem is that if user enter the date ,from year of date next drop down field enlist the entries of that year in the list from the database table.

Posted 27-Aug-14 13:01pm

Sajid227

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Nelek 27-Aug-14 19:48pm

I don't know the others, but I can not understand what you say. Would you mind to explain it a bit better?

Sajid227 27-Aug-14 20:27pm

THERE are two field at front end date is independent field but drop down is depend on the value of date entered,if user enter of any year from 2009 upto now,the dropdown must update itself accordingly,how can i do that

ChauhanAjay 27-Aug-14 21:19pm

Check this link
http://www.codeproject.com/Questions/812384/when-date-is-change-in-the-field-then-drop-down-wi?arn=1

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sankarsan parida · Answer 1 · 2014-08-27T15:54:00

Try to use texboxchanged event
Givina a example following below
design

<asp:TextBox ID="TextBox1" runat="server" AutoPostBack="True"
           ontextchanged="TextBox1_TextChanged"></asp:TextBox>

COde

C#

protected void txtProduct_TextChanged(object sender, EventArgs e)
{
if (txtProduct.Text != "")
{
string strSQL = "make your sql query ;  
 
DataTable dt =Commanclass.returnData(strSQL);//return (DataTable) with yourdata
DropdownList1.DataSource = dt;
DropdownList1.DataTextField = "Name";
DropdownList1.DataValueField = "Name";
DropdownList1.DataBind();
 }
}

Bhavik_Patel · Answer 2 · 2014-08-27T21:44:00

Solution 2

You can manage it will Text Change event... on text change you have to rebind dropdownlist with filtered data.

Posted 27-Aug-14 21:44pm

Bhavik_Patel

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Sajid227 28-Aug-14 3:47am

bro will u send a demo code so that i can implement it,for my requirment