I am trying to update a textbox with the current days date when a checkbox field is checked during Edit of detailsview
The current script I have is which gives me a : Object reference not set to an instance of an object on line 3
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I have a DetailsView within an UpdatePanel. I programmatically put the DetailsView into edit mode, change the fields then call the UpdateItem method which causes the "must be in edit mode to update a record" exception. Am I missing something blindingly obvious?
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Code Behind:
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I am trying to handle the detailsview programmatically but I don't know what I am doing wrong. My details view control isn't going into edit mode. My code for my gridview's select button properly loads the data into the detailsview but once the detailsview renders clicking on "Edit" doesn't switch the detailsview contol into edit mode.
This code draws the information from my database and loads the information into the dataview:
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This code is in my dvTeamDetails_ItemCommand sub and the beep works:
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This code handles my mode changing event:
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Here is some of the HTML code:
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I have a SQL DB with just 2 fields, ID and TEXT.What i was trying to do, was placing a Detailsview in EDIT MODE, then selecting from the DB like SELEC TOP 1 Text FROM DB.Then i placed a Ajax HTML Editor in the template field.How can i, keep the HTML Editor on the page, and use it for INSERT and/OR EDITING ?e.g.: on the first time the user opens the site management page, it will be blank, so it will show the HTML with no text on it. but the bottom button will be UPDATE and CANCEL. So when he enters the TEXT he clicks on UPDATE.
View 2 RepliesIs it possible to have an input mask in the detailsview when editing a record?
View 3 Repliesi have a DetailsView that is populated by a Linq to Entities query. Example query is below.
Dim leaveApp = From L In db.CompassionateLeaveApplications _
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I currently have a page that is used to insert or update records in a DetailsView using an EntityDataSource control. Insert is working perfectly. However, Updating is not. I have the default view set to insert. In PageLoad, I have:
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However, the DetailsView always defaults to the first record in the table rather than the record with ID that is equal to the ID querystring parameter. I am not sure how to make it select the correct record. From spending a while researching, it looks like I might need to use a QueryExtender control on the Entity DataSource, but haven't been able to figure out how to configure the QueryExtender correctly.
There is also perhaps some sort of datasource="stuff", databind() that I could toss in there but again.. not really sure how to proceed.
I guess I'm not sure exactly how or where to do what I need.
First off - here's what I need - - when the user clicks on the NEW button in the detailsView, I have the User.Identity.name captured in a variable and I need to set one of the textboxes (InsertItemTemplate) named 'txtNew' to that name.
I've tried using the ModeChanging (and ModeChanged) event:
Dim
dv As
TextBox =
CType(DetailsView1.FindControl("txtNew"),
TextBox)
If (e.NewMode =
DetailsViewMode.Insert)
Then ....
However, no matter what, 'dv' always shows as 'Nothing', so I can't change the text of it.
Where do I put the logic and what am I missing?
My gridview was working just fine until I converted the Officer Report collum to a templatefield so I could have a multiline text box. Now when I go into edit mode and press update, it doesn't update. I don't know what I am missing here?
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Here is the datasource information.
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my gridview doesn't return to readonly mode after an update. i have set the editindex to -1did the databind() for the gridview too. but nothing works.setting keepineditmode to false doesn't work either.he documentation says that the gridview automatically returns to readonly after pressing the update button.my gridview is on a panel, and that panel is on an update panel.
View 6 RepliesIn my gridview, I have a column for Amount. I want to calculate the amount as soon as user changes the Amount and display calculated Amount in a textfield. What I have done is I have Amount as Templatefield and have set Autopostback = true. In the event handler for textChanged I have function for calculate Amount which will calculate the amount and set the calculated value in a textbox. But I am getting an error message:
[NullReferenceException: Object reference not set to an instance of an object.]
UpdateInvoice.calculateamt() +87
UpdateInvoice.txtAmt_TextChanged(Object sender, EventArgs e) +5
System.Web.UI.WebControls.TextBox.OnTextChanged(EventArgs e) +8739438
System.Web.UI.WebControls.TextBox.RaisePostDataChangedEvent() +55
System.Web.UI.WebControls.TextBox.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent() +10
System.Web.UI.Page.RaiseChangedEvents() +165
I have a gridview that I would like to the set the textbox in edit mode to multi line in order to show more of the content of the cell. Does anyone know how to change this property, I have tried (I think) every single one I could find in the Gridview property settings for editstyle, item style, row style etc.
View 5 RepliesI am working with VWD Express and Visual Basic. take this into consideration if you are willing to answer my question. I do have the following code for a GridView.
<asp:GridView
ID="OpenCloseUDTIGameThreadGridView"
runat="server"
AllowPaging="True"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber"
DataSourceID="OpenCloseUDTIGameThreadSqlDataSource"
CellPadding="4"
ForeColor="#333333"
PageSize="100" >
<Columns>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server"
Width="75px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted") %>'
ImageUrl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="TCategory" HeaderText="Category" ReadOnly="True" SortExpression="TCategory" />
<asp:BoundField DataField="TItemTitle" HeaderText="Item Title" SortExpression="TItemTitle" ReadOnly="True" />
<asp:BoundField DataField="TUDTIThreadActualStatus" HeaderText="Actual Status" SortExpression="TUDTIThreadActualStatus" />
</Columns>
</asp:GridView>
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
Is it possible to set the width of the textbox in edit mode equal to the width of the column before entering edit mode? I basically want to go into edit mode without change the size of the grid and without just setting the textbox width property to a specific number.
View 13 RepliesI'm having a hard time solving what should (I think) be an easy problem. I have a formview defaulting to Editmode. One of my data fields is a binary image. How can I change the editItem template to allow a user to upload a new image into the binary image field?
View 2 RepliesIs it possible to convert gridview textbox(when in edit mode) to combobox without using EditItemTemplate or place control in EditItemTemplate?
View 3 RepliesThis is my first post on this forum. I have a Gridview with the following Columns
1. Edit Column
2. User_ID (Read Only)
3. Email (Read Only)
4. Role ( A Dropdownlist with 2 list Items namely "Admin" & "QA Lead")
I have used wizard to populate a "Gridview" and the embedded "Dropdownlist" control in it. This is my reference: [URL] My Problem: The Data populates perfectly in Grid and Dropdownlist. But, when I Press "Edit" button the Dropdownlist goes into edit mode in the form of a "Texbox". (i dont want this) I still want it to be an editable dropdownlist.
I have a Problem with my Javascript popup calendar when linked with a Text box inside DetailsView.It gives me the following error
Calendar.setup 'zapatec-calendar-1':
Nothing to setup (no fields found). Please check your code
popup calendar is working fine outside the Details view.
Is it possible to access textbox text properties from codebehind when gridview is edit mode? for example I can access label's text properties on gridview row databound event.
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So I do not like use Text='<%#Eval("ColumnName")%' this method. I want to manage textbox text properties dynamcily codebehind when click the edit button on gridview. When I clik the edit button these code blocks runs
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but rowdatabound event fires again and couldn't find label control. It looks for textbox control to bind data but I can not manage this step.
I am simply trying to get a querystring value and pass it to a textbox in a formview with the default view set to edit mode.
Protected Sub fv_Detach_Engine_DataBound(ByVal sender As Object, ByVal e As EventArgs) Handles fv_Detach_Engine.DataBound
If fv_Detach_Engine.CurrentMode = FormViewMode.Edit Then
Dim tbx_IDProfileAccount As TextBox = TryCast(fv_Detach_Engine.FindControl("tbx_IDProfileAccount"), TextBox)
If tbx_IDProfileAccount Is Nothing Then
tbx_IDProfileAccount.Text = Request.QueryString("IDProfileAccount")
End If
End If
End Sub
I have some template columns that have multiple textboxes in them.
There is one textbox for the Date portion of a datetime field and another textbox for the Time portion of the datetime field.
How do I populate those textboxes after the user clicks on the "Edit" button?
My assumption was I could get the data from the label that was displaying the datetime field data, break it down into Date and Time, and then access the textboxes.text property to fill those.
I can get the data from the label control, but when trying to fill the two textboxes with the data, I get Object Reference Not Set... errors.
Im assuming maybe those textboxes are not setup yet during the RowEditing Event?
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In the example below I have set the control style to 'controlName' I want to use this class to define what my textbox looks like in edit mode. This works ok, so far so good. The Problem In a button event I add the class "validationError" to this textbox if the data is incorrect. When the grid gets rendered I expect to get 'controlName validationError as the class applied to the textbox. Unfortunately, it seems that the declarative statement overrides this and simply ends up as 'controlName' how I can intercept the application of the declarative class so that I get what I desire here?
<asp:BoundField
DataField="Name"
HeaderStyle-CssClass="headerName"
ItemStyle-
CssClass="itemName"
ControlStyle-CssClass="controlName"
HeaderText="Name"
>
</asp:BoundField>
I have a bound field in a DetailsView that I want updated with the contents of TextBox2.Text when I update. I have TextBox2 set AutoPostBack True. Cannot remember how to move the contents on update. I tried converting the "Description_Update" to a template field without success.
I can copy and paste the contents of TextBox2 into the DetailsView and it does update as do the other DataFields.
<asp:TextBox
ID="TextBox2"
runat="server"
Height="80px"
TextMode="MultiLine" Width="360px"
Font-Size="Small"
MaxLength="120"
Text=""
Font-Names="Calibri" AutoPostBack="True"></asp:TextBox>
<asp:BoundField
DataField="Description_Update"
HeaderText="Descrip"
SortExpression="Description_Update"
/>
Do I need to use adn Eval or DataBind function or both. I have triued several combinations and do nothing but continue to butcher the database tables.
I have a grid view with edit and save buttons when I click on edit it is letting me edit it and if I click on save it is lettingme save the data that I have edited.
The thing is after save is done it is showing the data in edit mode i.e <edit item template > mode I am still seeing the textboxes if I refresh the page then I am seeing it normally.
How can I stop the gridview to show edit mode after the save is done?