Forms Data Controls :: Accessing Unbound DetailsView Cell Values In Edit Mode?
Apr 12, 2010i have a DetailsView that is populated by a Linq to Entities query. Example query is below.
Dim leaveApp = From L In db.CompassionateLeaveApplications _
i have a DetailsView that is populated by a Linq to Entities query. Example query is below.
Dim leaveApp = From L In db.CompassionateLeaveApplications _
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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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 RepliesI 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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Is it possible to have an input mask in the detailsview when editing a record?
View 3 RepliesIn my asp.net application i'm using gridview to which i'm binding data dynamically by writing a select query in code behined file (all column's are autogenerated) now i want to change gridview cell to edit mode from label to textbox or dropdown on clicking of gridview's cell.How can i achive this in code behined file.
View 4 RepliesIn my application Iam using GridView, in this there are fields (Quantity, Price, Amount) the user can enter Quantity Field value which is a template field (textbox). Iam calculating Amount(Quantity * Price) using Javascript and assigning to the Amount Column cells as below
Gridviewcell.innerText=Quanity * price.
and when user clicks on the Save button I want to add these details of Gridview to the database.
when I try to access the values of the gridview using below code
For i=0 to GridView.rows.count-1
GridView.Rows(i).Cells(2).toString ( for Example)
Next i
It is not displaying the changed value instead it is displaying the default value before calculating the amount.
Before implementing the Javascript part, I had done this in the code behind and it was working fine... Now I just dont want the page to get load so I used javascript.
able to access the value of Gridview cells which are assigned using Javascript.
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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In web config file I have add key values specified.
In the formview I have labels on edit , item and insert mode that I want to display all the time by getting those values from web config. I'm able to do that with no problem but when I change the modes between edit to insert or item view, I lose those label values until I hit the "select" twice from the Gridview, those values re-appear. Below is the snippet of the code. What do I need to do to retain the category values all the time?
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i use a gridview to show data from datasource, but i have some column in this gridview that they're not bound. If i go in edit mode, my unbound control show me the textbox to enter value and its ok, but if i modify value thru rowdatabound, now when i go in edit mode, the textbox are not showing as i expect, its just showing the value i put in rowdatabound, but i don't have the textbox to let me enter a new value and update it after.
And more in the same relation: with the two above condition i wrote, when i dont modify value in rowdatabound, i can modify value in prerender event with this line:
TextBox
box1 = this.GridView1.Rows[this.GridView1.EditIndex].FindControl("TextBox1")
as
TextBox;
box1.Text = "a value"
;
but
when again i modify value in rowdatabound, the line above will not work too, box1 is load with a null value
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?
- I want to put multiple rows of a gridview into edit mode
- I have not found any easy method to accomplish this task. I found a way to programmatically put a gridview into edit mode, but in testing the code below it works for only 1 row at a time :
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How do I change these hyperlinks to say something other then Edit and Cancel?
View 4 RepliesI have a page where I have a tab container and four tabs. the problem is on the first tab "manage quote request" I have a Gridview with the quote request general informatin listed and have a template field created with a link button to databind to the formview quote details. the porblem comes in when after I click on the select linkbutton. the Formview loads right. Then Whe I try to click on the edit linkbuttin in the form view I have to click it twice to change the mode to edit.
here is the page code:
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Here is the Codebehind:
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I have a gridview to display data, and one of columns was the file path (string). I want to when switch to edit mode, this column will be a editbox + a button, (so if the user click on the button, an OpenFileDialog will be show and he can select a new file) How can I do that?
View 1 RepliesI have a DetailsView with several fields. On the same page, I have both LinkButton that enables to go in edit or insert mode for the DetailsView.
When I click on a button, linked code-behind is doing the following :
switch (buttonCmd.ID)
{
case "cmdEdit":
DetailsView1.ChangeMode(DetailsViewMode.Edit);
break;
case "cmdInsert":
DetailsView1.ChangeMode(DetailsViewMode.Insert);
break;
This kind is working fine in another page from the site website but not on this one... Probably a bad copy-paste
For ASP.NET, I'm using a DetailsView for insert and edit of a record. For edit mode I don't want to display the primary key field because it should not be changed. For insert mode, I want to display the primary key field because it doesn't exist and the user can specify it via a DropDownList that insures they will pick an unique value. A TemplateField is used in the DetailsView markup for the primary key field (hence the DropDownList for insert mode).
My problem is that I cannot get the primary key field to not display for edit mode and to display for insert mode. In the markup I have:
<asp:TemplateField HeaderText="name" InsertVisible="True" Visible="True">
<InsertItemTemplate>
<asp:DropDownList ID="ddl2NonMembers" runat="server"
Width="155px"
Sourceless="sqlNonMembers"
DataTextField="name"
DataValueField="id_adm"
SelectedValue='<%# Bind("member_grp") %>'>
</asp:DropDownList>
</InsertItemTemplate>
</asp:TemplateField>
With the TemplateField Visible="True", the HeaderText="name" always displays which I don't want for edit mode. With the TemplateField Visible="False", the field never displays which I don't want for insert mode.How can I achieve the display behavior I want for insert verses edit mode. I'm fine with changing some property programmatically rather than relying an a pure markup approach,
I have a gridview with footer template which has dropdownlists.. I am populating these dropdownlists at row_created event of gridview..
When i want to update any record and when user clicks edit in the gridview i must get the dropdownlists and the values which were already selected previously for that particular item .. How to do this?
In the row data bound event i get all the dropdownlists populated but they are not the one which was selected. How to display values in dropdownlist which was already selected earlier?
Cannot retrieve DetailsView Cell Value
View 3 RepliesI have gridview, and in this gridview, I insert a new row dynamically depending upon a value from the database all the way down the table. Even though this is all working well, I need to access a number of controls that I added to the inserted row. Namely, a checkbox and label. When I try to access these controls, I am getting an error message - object not set to reference. Then I tried saying "Gridview1.Rows[rowIndexVal].Cells[1].Text = myTextVal", but what this does is to insert the value on a different row.
Therefore, I have two problems, which I am really desparate to try and solve:How do I access the correct row and control that I have added to my inserted row, andBecause I have a checkbox control on my inserted row, which has an event associated with it, how do I get the selected row the user clicked. When I try doing this using FindControl, I always get a row index of zero.I am using Table object and TableCell to add a new row dynamically to the gridview, and then using ColumnSpan to make it fit the number of columns in the gridview.
Currently I have a grid view with few rows of data & edit and update for each row but I want it to be done on a single click with w external edit & save button how can the functionality be performed.
View 1 Repliesi have a detailsview in insert mode and that is bound to objectdatasource. now the class that is attached to objectdatasource is :
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here ResturantId value has to be in session or from Dropdownlist and rest of the value from Detailview. So how to assign that value?
How do I set the value of a field in a detailsview to the selectedvalue of a gridview on the same page? I am also trying to set today date as value of another field in the detailsview as well as UserID. I wrote the following codebehind for the date setting:
TextBox tb = (TextBox)DetailsView2.FindControl("TextBoxCreDate");
tb.Text=System.DateTime.Now.ToShortDateString();
TextBoxCreDate is a template field in my DetailsView.
Unfortunately, I get a Object reference not set to an instance of an object. Error message.
I am trying to "reset" the DetailsView in View1 to ReadOnly mode if the user changes the index in RadioButtonList. Currently, it is working correctly for the first pass and second pass, but fails at the third pass. I want it to just cycle through the DetailsVIewdatabound event, but the cycle breaks on the third pass and I'm not sure why?
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