Forms Data Controls :: Updating GridView With A Dropdown In Edititemtemplate?
Apr 10, 2010
When i Updating my gridview and i modify the value of dropdown the update is all ok, but if i not modify the dropdown and leave the selected value after the update i see another value, the first of listitem of my dropdown.
This is my code:
Sub GrdUpdate(ByVal sendere As Object, ByVal e As GridViewUpdateEventArgs)
Dim ID_ricette, NomeRicetta As String
Dim NomePortata As DropDownList
Dim NomePortataSel As String
If Not e.NewValues(0) Is Nothing Then
ID_ricette = e.NewValues(0).ToString
NomeRicetta = e.NewValues(1).ToString..........
I have a gridview and I do Add, Modify and Delete operations. I am comfortable adding and modifying any text or date value. Now, I have a dropdown list to be displayed. I need to add and modify. The contents in the dropdownlist is fixed. Below is the code. I know there is a problem in my
I have a gridview that has a dropdown on a template on the row. The user is wanting to change the value and update the record automatically. I know that when the value changes, I need to have the OnChange to trigger. I am not sure how to get the row so I can get the record ID so I can create a SQL statement to update this field.
Should I be using something other than the gridview?
I want to dynamically populate data in Dropdown box in the Edititemtemplate of the Listview. The below code is showing error "Object reference not set to an instance of an object". The problem is in Findcontrol function. How to solve this.
How to write code in vb.net to control the Dropdown which is inside FormView EditItemTemplate. FormView named "frmFaultsReg" DetailsView named "lstStatus" Actually what i want to do that there is a textbox inside FormView EditItemTemplate and ItemTemplate to insert Closing date. lstStatus has a value PENDING and CLOSED. If a user select CLOSED from lstStatus then the date textbox named "ClrDateTimeTextBox" should show current date time and to insert into database and if user again selects PENDING from lstStatus then the date textbox should show empty. I think the postback of lstStatus should work but lstStatus is inside the FormView thats why I am unable to hook it.
I have a gridview and it has two EditItemTemplates. I want to update the items inside the second dropdown (EditItemTemplate) when I select an item from the first dropdownlistbox (EditItemTemplate). I want to update dropdownlist2 when I select an item from dropdownlist1. How can I do this?
I am having issues with this.. If you could help that would be great. I am not a coding expert, but I am trying to learn as I go. I am having problems taking the value from my dropdown list (tabl1) and updating table2 with the selected value.I have my grid / form showing my table2 data, I have 1 of the dropdown fields being populated from table1, when I change the specified dropdown box and click update, the data in table2 stays the same.
I'm trying to make a order form where once the user selects an item from the drop down list, the label will automatically be populated with the user's selection.suppose user select item from drop down then label populate rate for that itemve me a sample example..
I have a dropdownlist embedded into an asp.net gridview. I have successfully populated the dropdown list in the footer but have not been able to populate the dropdownlist in the EditItemTemplate. Here is my code that works. I need to do the exact same thing for a dropdownlist embedded in the update functionality of the gridview.
I have GridView with template column binded to some field. In edit mode I would like to set default value to this field when it is not initialized (this is time value and I would like to set it to default 8:00 - this prevent user from entering this value) - how to do this?
I have two embedded dropdown lists in Gridview control. One gives you business channel options and the other represents products depending on the business channel selected.I am trying to use different data sources for product dropdown list depeding on what the user selected from the business channel drop down list. How could I do this. Here is my current code:
ths is my html code here i am editing the gridview data on the edititemtemplate itself but it shows error when i am going to get the testiActive .And also the when i delete it shows the object Reference exception. i do no what the issue the same thing i used on the updating - there i got the id value - when i am going to delete it show error ther.
[Code].... and here is the updating code
[Code]....this is my Gridview_Deleting Code
string id = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].FindControl("testid_TextBox")).Text;
I have a "simple" gridview that has some columns, and the ability for editing/deleting. I recently found that I can change the editing textbox to a dropdownlist and have follow that, using:
[Code]....
It's quite simple and instead of using an sqldatasource, I have successfully implemented using the sqlclient in the codebehind to bind data only when I want (since this GridView is for "reports" and is queried by many parameters from user inputs).From what I've found online, the only way people have populated the dropdownlist is by using an sqldatasource - is there any way to populate it using the codebehind sqlclient like I have for binding the gridview and other dropdowns on the page that are exactly the same actually. I'd obviously have to set the SelectedValue to be what the value is coming from the database, which I can't see being that difficult.
The tough part seems to be knowing when to access this "MoneyTypeEdit" dropdownlist. I thought it would be in the RowEditing event, so I tried something like:
[Code]....
And I know everything outside of the "inserted code" works, because it was fine before I added that, but the dropdown obviously didn't have any values. And I know the code inside the "inserted code" works because I use it somewhere else on my page to populate a similar dropdown. But I get the error that MoneyTypeEdit is null, and I'm guessing it's because it can't find the "MoneyTypeEdit" dropdownlist.
i hvae a database named anil and TABLE NAMED COURSE_IN fields are (gridview with regnumber,name,dtjoin, qual, OY, OTY,VDA) and another table course with (OY, OTY,VDA) fiedls. my grid view displays adata from databse with edit facility.
one dropdownlist out side grid selected value is displayed in gridview
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
Gridview showing error while trying to edit records
error: Server Error in '/' Application.
Object reference not set to an instance of an object.An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 134: GridViewRow row = (sender as Button).NamingContainer as GridViewRow; Line 135: //string Invoice_No = (row.Cells[0].Controls[0] as TextBox).Text; Line 136: string orderdate = (row.Cells[1].Controls[0] as TextBox).Text; Line 137: string Posted_By = (row.Cells[2].Controls[0] as TextBox).Text; Line 138:
I have a gridview where i have two fields. one is product and second is sub category.
I need to do 2 things.
1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?
I have a textbox inside edit template and it is binded with the data. Somehow, textbox data starts from the middle instead at the beginning of the box. I can use textarea where it starts from the starting point but I cant bind the data inside the gridview.
I have requirement to bind ASP.Net DropDownList control in EditItemTemplate of GridView.
I preferred the tutorial:
[URL]...
i have followed same steps just but difference is i have a edit imagebutton with commandname="Edit".Also dropdown needs to be binded from different table(directory) and not the table through whicch grid is binded(details).
if (e.Row.RowType == DataControlRowType.DataRow && (e.Row.RowState & DataControlRowState.Edit) == DataControlRowState.Edit && GridView1.EditIndex == e.Row.RowIndex) { DropDownList DStatusEdit = (DropDownList)e.Row.FindControl("DStatusEdit"); string query = "select distinct status from directory"; SqlCommand cmd = new SqlCommand(query); DStatusEdit.DataSource = GetData(cmd);
[CODE]..
the page is running but when i click edit image button the dropdwn shows but no data in dropdown binded it is empty.
My gridview is inside update panel.
How can i achieve this?
Should dropdownlist in my case be binded inside rowcommand and how?
I am having problem with rowdatabound, want to add if conditions intact, i am using teh following two if conditions and they don't look right. i found them on google.
If e.Row.RowState = DataControlRowState.Normal Or e.Row.RowState = DataControlRowState.Alternate Then end if If e.Row.RowState = DataControlRowState.Edit Or e.Row.RowState = 5 Then end if
With datagrids i use these and they work excellent:
If e.Item.ItemType = System.Web.UI.WebControls.ListItemType.Item OrElse e.Item.ItemType = System.Web.UI.WebControls.ListItemType.AlternatingItem Then end if.....
i saw this post on[URL] so the problem is .... if there is a datasource in some editeitem template in grid view .... it won't be accessible from out of the edit-item field.....
here's my code...
[Code]....
that i have here is ID-column which contains a linqdatasource taking a where parameter from a dropdownlist and they are both in the same edit-template field.
and i have in another column (CourseTypeID-column ... edit-item template) a dropdownlist ..... now this dropdownlist i want to bind it to the linqdatasource exists in the ID-column (edit-item template)..... is that possible in the designer (or from) not code behind ..... and how ????
there are few columns in the grid view which are fixed and in i used template field for this purpose. I have assigned the bind property to each column in edit item template but it didnt show values on these fixed value columns.here is grid view code
I have a parent gridview which has a child gridview in the itemsTemplate. Both are binded to different SqlDataSources. I can successfully update and delete rows in the child gridview. After updating in the child gridview, some related data in the parent gridview are not updated automatically. So i have placed ParentGridview.Databind() in the rowupdated event of child gridview. But it doesnt look working.
