Forms Data Controls :: Editing Datas In Gridview Using A Dropdownlist?
Dec 20, 2010
i am making an application using a datagridview... And I am very new to it. And I need to edit my datas in gridview using a dropdown list.
So this is the flow of the program. As the page load, my gridview will appear, with the datas from the database binded to it, so far I have done that already. Every row in the gridview has an edit hyperlink, so when I click that, I can change the values in that row using a dropdownlist, wherein, the item in my dropdown are aswell from my database.
I hav a gridview in which i display the project name,created date,Start time ,end time ,total hours along with the task id field which is visible=false.
My starttime and endtime format is 2010-10-13 03:00:00,but i want to display these two fields in dropdownlist ie.,only i want to display the HH:MM:SS in dropdown so that when the user changes the time it should be automatically be reflected in the total hours(6:0) field after updating.pls tell me what i have to do to bring the Hours ,minutes and seconds in dropdownlist into the cells of gridview with the value in database ,how to write the code.
On Edit Click, the DropDownList in the GridView brings the previously selected value.On Update Click, the error is: "System.FormatException: Input string was not in a correct format."
ddlRegionNavn.DataTextField = "RegionNavn"; ddlRegionNavn.DataValueField = "RegionID"; // from RegionNavn to RegionID
On Edit Click, the DropDownList values in the GridView is not firing and the following error shows.Object reference not set to an instance of an object. How to implement the code when having a value of type Int ?
I've got a master table and a child table. The master table has a nullable column called ReferenceID and in some cases it should be NULL, but when it's null in a record, I get an error while going to Edit mode of DetailsView.
In Read Only mode all everything is OK, but when I click on Edit and Postback happens, I get the following error: Server Error in '/Sample' Application. 'DropDownList_Reference ' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value It means that in MasterTable, the ReferenceID shouldn't be NULL, but it should be in some cases.
I am tryingto update my data on a gridview.... i have two ddl's and two textbox...when i click on the one ddl it post the value of the selectedvalue into the textbox and this happens the same for the other one..... I am using the rowupdating event handler... and here is what i have so far...
I have a nested gridview dynamically added. It seems I resolved all issues with the loading this control on a parent page along with other controls and I can trigger the edit of the first level - the master part of the gridview. However, I cannot trigger the edit on a child gridview.
OnRowEditing="grdChildGridEdit_RowEditing"
The master and the child gridviews have objectdatasources in a markup but I have to do the additional data binding after the loading the control on the parent page (see the code below). I'm doing that additional data binding only for the master gridview that is working fine and shows the data for the master and the child gridviews. When I click the Edit button on the master gridview it shows text boxes for the editing but when I click the Edit button on the child gridview it's doing nothing and moreover the editing mode for the master gridview is going back to the initial stage (labels).
I was trying to trigger it throughuse the registering the event:
The gridview lives in a formview, which lives in another formview.
Inside one column is an end date. This column has a textbox which gets it's value when I choose a date from a calendar control. However, when I choose a date from the calendar control, the program crashes instead of populating the text box.
Here is the page and the selectedIndexChanged sub for the piece of work I'm trying to accomplish...
[Code]....
Gridview2 is inside formview3 inside formview1I have included the whole page below, but the problem area is gridview2[Code]....
I'm trying to edit the header row of my gridview to look like this.As you may have noticed, this is the Gmail layout and this was indeed what i intended for. I want to have on my header row some buttons that would then execute some actions to all the selected rows (very much like Gmail).
I have a Gridview where the user can edit a row when he click on "Edit" (this is called update mode i thinck?).
When the editing is done, the user clicks on "Update" and the changes are written into the database. Additionally i set a "ChangeMarker" in the database that the data record has been changed by the user.
I identify the row in the database i want to update with the SelectedDataKey in the Gridview:
[Code]....
In the first line where I dim EdittedRow i got an error: "Object reference is not set to an instance object". I dont understand this error message.
Well the dropdownlist has an existing items. I just want the selected gridview record to be displayed in the dropdownlist. The dropdownlist has several DataTextField in string and consist of DataValueField in numeric. The gridview passes a string text to the box which has an equal or same item inside the dropdownlist. Whenever i passed a record from a gridview to be viewed in the dropdownlist it just duplicates the same item. Q: How can i simply pass a text inside the dropdown and just simply display it without adding on the list.
sample item on the dropdown: --Select-- Account Savings
after selecting on the gridview and display inside the dropdown: Account Account Savings
(you see the '--Select--' was erase and replace with the selected record)
I have a databound gridview using datatable as datasource. Template fields are used to edit the row content.This cell value should get updated in the datatable on text_changed event without using gridView edit. Is it possible to overload the GridViewEditEventHandler for this purpose.
I ahve displayed a group of data in my gridvew with the edit option linkbutton template field for each row. The gridview columns consist of employee name and projectname and total hours field employee worked.
So in this when i click the edit button using the datakeynames alue for project name id and employee id ,i have to redirect the page to another page with the values in the grid for the particular employee.so that i can update the totalhours field in the redirected page.and if i press the update button in that page then the page should be redirected to the gridview page with the updated value for the particular employee and project. The page which should be redirected consist of project name dropdownlist, module field,date field and total hours field. No employee name field.
Using the gridview rowdatabound field i have postbacked the url page with the project name id but it does not displays the project in the redirected page.And employee name i have to redirect with the session value i think?
I also try setting editIndex to -1 in my sort function but that also doesn't work So when I am editing then sort event fire and edit item got change, so edit functionality is not working with sorting
I have a gridview control. I am not using any templatefields or boundfields. The data will be populated dynamically. I am using RowEditing, RowUpdating and RowCancelingEdit events. In RowEditing event, as we know all the cells in that row will become editable, i need to disable few columns(Cells) from editing.
i have a gridview connected with a sqlDatatsource that show/update records and that work fine
now what if i want to edit records quickely like in excell for example
so the left/right arrows to switch between columns up/down arrows to switch between records
i want to use this grid to edit invoice like table is the gridview suitable for this kind of use or i have to use another component (DB aware ideally)?
i have a gridview inside an edittemplate formview control in a master/detail scenario
so in the formview i have some comboboxs/datepicker/..etc corresponding to the master table
and a gridview corresponding to the detail table
in this gridview i enabled multi editing of rows like in this article[URL]
the problem is that even i change the values on the gridview , if i click the update button of the formview the "details table" changes isn't submited to the database
I have a gridview which I use to edit text fields. How is it possible to start a new paragraph when entering text? I'm hoping that this can be done without using markup, as the users are not neccessarily going to be particularly computer literate.
I am trying to implement a online shopping Cart which enables editing and deletion of products. I created a datatable programatically and bind it to a Griview control. (datatable is stored in a session variable ). When clicking the edit button of the Gridview nothing happened. How can I impement editing behaviour to the gridview?
I'm using a simple search with a gridview. What is happening is when I click to edit the record, it presents me with the record fine but when I click Update in my FormView, the Gridview doesn't update. I have a feeling I'm missing something simple but I can't get totally sure so here is my code hoping someone can point the way.
