ModalPopupExtender textbox always reset to its initial values RSS

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  alihusain_77

  Member

  42 Points

  573 Posts

  ModalPopupExtender textbox always reset to its initial values

  Jul 04, 2017 11:42 AM|alihusain_77|LINK

  I have the following:

  <asp:TextBox ID="FromDateTxtBox" runat="server" Height="32px"   
  style="border:solid black 1px; font-family: 'sakkal Majalla'; font-size: 24px; text-align: right;" Width="150px"></asp:TextBox>
  <asp:CalendarExtender ID="Calendar1" runat="server" Format="dd-MMMM-yyyy" PopupButtonID="imgPopup" TargetControlID="FromDateTxtBox">
  </asp:CalendarExtender>

  In the Page_Load event, I have:

  If IsPostBack = False Then
  .
  .
  .
  FromDateTxtBox.Text = Format("01-01-2013", "dd-MMMM-yyyy")
  Calendar1.SelectedDate = CDate("01-01-2013")
  .
  .
  .
  
  End If

  The AutoPostBack property of FromDateTxtBox is set to False

  The problem I have is that any action I made in the page that makes the page to be postback (Button, DropDownList, Gridview radio button,....) causes the text value of the FromDateTxtBox to its initial value, which means losing the value entered by the user.

  Thus, How can I prevent this behavior?

• • Reply
  Eric Du

  Contributor

  6420 Points

  2687 Posts

  Re: ModalPopupExtender textbox always reset to its initial values

  Jul 05, 2017 09:15 AM|Eric Du|LINK

  Hi alihusain_77,

  According to your description, as far as I know, if you postback the page, the page control will be initialized.

  So I think you could use session or hidden element to store the value, after the postback, you could get data from session then show it in the textbox.

  How to maintain the value of label after postback in Asp.net? [closed]:

  https://stackoverflow.com/questions/20907112/how-to-maintain-the-value-of-label-after-postback-in-asp-net 

  Save value in session:

  https://msdn.microsoft.com/en-us/library/6ad7zeeb.aspx 

  Read value from session:

  https://msdn.microsoft.com/en-us/library/03sekbw5.aspx 

  Best Regards,

  Eric Du

  MSDN Community Support
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