formview

FormView.FindControl(): object reference error

蹲街弑〆低调 提交于 2019-11-29 11:59:00
I have a formview that has several textboxes inside of tr/td's. I'm trying to get the textboxes by using the .FindControl method but it's coming back null. The FormView is always in Edit mode (so I'm always in the EditItemTemplate) and i'm trying to load querystring values into the textboxes coming from the previous page so I do need this to happen on page_load. I do this on Gridviews all the time like this: txtFirstName = (TextBox)fvGeneralInfo.FindControl("txtFirstName"); or like this: txtFirstName = (TextBox)fvGeneralInfo.FooterRow.FindControl("txtFirstName"); or like this: txtFirstName =

can't find control in FormView?

本秂侑毒 提交于 2019-11-29 11:55:35
I need find this <a> tag resided in a FormView control, I need to remove this a tag depending on the condition but I can't find it using FormView.FindControl method <asp:UpdatePanel ID="upDiscipline" runat="server"> <ContentTemplate> <asp:FormView ID="fvMediaIntro" runat="server"> <ItemTemplate> <div class="clipControls"> <a runat="server" id="iNeedToFindThis" href="#">here</a> </div> </ItemTemplate> </ContentTemplate> </asp:UpdatePanel> I tried fvMediaIntro.FindControl() and fvMediaIntro.Row.FindControl() , neither worked. Any idea please?? FindControl will work only after those controls are

FormView.FindControl() returns null until DataBind()

故事扮演 提交于 2019-11-29 11:54:09
Why method FindControl() returns null on FormView until call DataBind() . After that it returns everything correctly? What workaround are there? Call DataBind() before first call of FindControl() ? Either explicitly call DataBind(), or place your code in the DataBound event of the FormView. How would a FormView have any information about its content before it has any data to build it upon? So I guess you already answered your own question, you will have to DataBind() before. It has nothing to do with BINDING. One is looking for SERVER CONTROL, not for ITS BOUND DATA. SO - control should be

Curious about get_form_kwargs in FormView

元气小坏坏 提交于 2019-11-29 11:19:49
问题 I was having trouble with FormView recently and found that the way to go about doing it was to use get_form_kwargs. Here is my code: class InternalResetPasswordView(FormView): template_name = 'reset_password.html' form_class = forms.InternalPasswordResetForm # success_message = "Password was reset successfully" # To get request object # http://notesondjango.wordpress.com/2012/12/18/modelform-formview-and-the-request-object/ # https://stackoverflow.com/questions/13383381/show-message-after

ASP.NET, VB: how to access controls inside a FormView from the code behind?

我怕爱的太早我们不能终老 提交于 2019-11-29 10:10:12
问题 I have a checkbox and a panel inside of a FormView control, and I need to access them from the code behind in order to use the checkbox to determine whether or not the panel is visible. This is the code that I originally used, but since I put the controls inside of the FormView, it no longer works. Protected Sub checkGenEd_CheckedChanged(ByVal sender As Object, _ ByVal e As System.EventArgs) If checkGenEd.Checked = True Then panelOutcome.Visible = True Else panelOutcome.Visible = False End If

FormView.FindControl(): object reference error

爷,独闯天下 提交于 2019-11-28 05:10:00
问题 I have a formview that has several textboxes inside of tr/td's. I'm trying to get the textboxes by using the .FindControl method but it's coming back null. The FormView is always in Edit mode (so I'm always in the EditItemTemplate) and i'm trying to load querystring values into the textboxes coming from the previous page so I do need this to happen on page_load. I do this on Gridviews all the time like this: txtFirstName = (TextBox)fvGeneralInfo.FindControl("txtFirstName"); or like this:

FormView.FindControl() returns null until DataBind()

微笑、不失礼 提交于 2019-11-28 05:09:17
问题 Why method FindControl() returns null on FormView until call DataBind() . After that it returns everything correctly? What workaround are there? Call DataBind() before first call of FindControl() ? 回答1: Either explicitly call DataBind(), or place your code in the DataBound event of the FormView. 回答2: How would a FormView have any information about its content before it has any data to build it upon? So I guess you already answered your own question, you will have to DataBind() before. 回答3: It