Forms Data Controls :: GridView Not Updating / After Clicking Update Command Field?
Mar 12, 2011
I have a gridview and sqldatasource in a form. My sqldatasource has select,delete and update command. The delete command is working but the update doest not work when I click the update command field.
Here is my code [Code]....
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Feb 3, 2011
I have a gridview where I am using the update. I have converted the label into a templatefield and added a dropdownlist which is getting polulated in the Rowdatabound event. When I test the update i get an error
Cannot insert the value NULL into column 'StartTime', table 'HTC.dbo.EventDates'; column does not allow nulls. UPDATE fails.The statement has been terminated. so I am ussuming its still trying to update from the label rather than using the dropdownlist. here is my code:
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Apr 26, 2010
how would i do my Gridview delete command like a update command?
im using a datasource... and my delete command is like my update command... so i can change the status into "INACTIVE"...
DeleteCommand="UPDATE ACCOUNT_MAINTENANCE SET am_status = 'INACTIVE' WHERE (accmain_no = @accmain_no)"
UpdateCommand="UPDATE [ACCOUNT_MAINTENANCE] SET [account_type] = UPPER(@account_type), [min_deposit] = @min_deposit, [min_capital] = @min_capital WHERE [accmain_no] = @accmain_no"
when i press my delete command at gridview... the status changed into "INACTIVE" but when i refresh or press f5... it automatically update the status into "INACTIVE" also...
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Jul 12, 2010
I am using asp.net(C#) as platform for building my application. I want to update the values in the database for the particular user & using the following code:
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when I run this code, it works perfectly fine & there's no error, but when I check into the database, the values do not change & remains same. The default value in the database is NULL.
Kindly check into the matter & revert ASAP.
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Aug 7, 2013
Can I have a example for Selecting GridView Row by clicking anywhere on the row without select command and also mouse over and mouse out background color change.
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Mar 23, 2011
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Aug 9, 2010
I was wondering if when you add the update link for gridview records, is there a way to only allow the user to update just one field in the record?
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Jun 15, 2010
I have added a Command Field in a Gridview Dynamically. And I have added the OnClick Attribute in the
RowDataBound event
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and ProceedAction() function have confirmation message. When i click the Delete button, the confirmation message is shown. But the Row Command is not fired (even if i click Ok/ cancel in the confirmation message).
I have analysised Little bit. If i have '\' or '{, }' or '*' in the javascript function, the behavior is improper (as i said above). If i remove it, it is working fine.
Since i need to ask two confirmation, i need to put '{, }' in my javascript. So how can i resolve the above issue.
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Aug 12, 2010
When I change my insert update and delete buttons to template field....they do not work properly anymore. I get a "Cannot insert a Null Value into...blah blah blah, error.
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Nov 18, 2010
[Code]....
This is my Grid view source basically i want as soon as i click on Select Button , the corrsponding Row Data get's redirected to another Page with the Data I know how to redirect to another page with query string only thing is that where and how i can store the data my .cs source
[Code]....
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Nov 30, 2010
i have a grid with template feild with two button's Accept and Deny and Command Name="update" and command argument ="Accept" and command argument2="Deny" now the problem is everytime when i click any Button it gives me first row data see my source
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My Code Behind
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Image [URL]
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Sep 26, 2010
I am trying to use an Update Command within my GridView. I need to find the "FindControl" for the Edit Command textboxes.
Ie. When the user clicks the Edit button, the row is populated with dropdown boxes, textboxes, etc for editting. Then when the user clicks on Update (button) and the GridView1_RowCommand function is activated with 'if (e.CommandName == "Update")' statement with my FindControl. etc. and my sql UPDATE command statements are used. How do I convert my FooterRow info to my Edit FINDCONTROL info?
This is what I have:
[Code]....
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Aug 6, 2010
i am using edit,update,cancel command in gridview, i need to update value in bound field how to retreive that value.
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Mar 15, 2010
I have a Modified Date and Modified By column in my gridview and I want them to be updated with the current date and current user any time a user updates the row.
I converted my columns to template fields and the textboxes in the edititemtemplate are bound to my sql data columns "ModifiedDate" and "ModifiedBy"
Then I added the attached code in my RowUpdating event.
When I test the code and click the Update link on my gridview I don't get an error but the values don't update either. I put a breakpoint on the code and when I hover over "ModifiedDateLabel.Text" I see the old value of the field so I know I'm accessing the control correctly.
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Jan 14, 2011
So I am uding a GridView bound to a SQL data source.
I have a template feild bound to a SQL BIT
<EditItemTemplate <asp:CheckBox ID="chkSelected" runat="server" Checked='<%# Bind("Selected") %>
The original Item Template was Enabled ="false" I changed this so that you did not have to set the row to a state of edit in order to just select a row. I enabled it so that you could "select" any row with out putting it in a state of edit. the only value changing is if its selected or not. What i am trying to do is use the Data Source Update method to update the bit in the database based on the check box. Currently Update() returns 0. I believe this is because the row/feild is not marked as changed so the Data Source does not see it as something that needs to be updated.
What I am hoping for out of this is post is a way that the rows whom check value has changed to be marked as changed/edited so that the data source will update the database with the values of the check boxes. If all rows are updated this is acceptable as well. I know this is a super simple solution but i have been out of the .NET for a little bit.
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Oct 19, 2012
changing gridview field by clicking a check button in gridview
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Aug 4, 2010
I created a gridview that is bound with an SQL datasource - I added a gridview button column. I need to update/insert 'Y' on a specific cell in the row when I press the button
This is my gridview code
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The button column I have says delete on it but it shouldn't really delete it - Once I press the button it puts a 'Y' on a column that is filtered out by my sql statement in the sql datasource
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Mar 22, 2011
I have a asp.net gridview control on my page with several fields and a couple of command fields. However, the update command is giving me problems.
Here is what works. The update command works provided I put straight text into the textboxes that appear. I even have one field that contains a dropdown list which works fine.
Here's the problem. I have two fields that need to access their value programmatically. These fields will reflect the current datetime and the current loggedin user from active directory. I have already created public strings in the C# code.
When I run the edit command on the asp form the grid uses one "DataKeyNames" element. With this the grid can update the selectedrow. However, I haven't been able to access it programmatically in the C# code. I can access the selectedrow in the "selectedindexchanged" event but then I am not able to update my fields in the gridview itself. So, part one of my question is how to I access the "DataKeyNames" properties of a gridview control.
if I can't access the "DataKeyName" property perhaps I could set the label nested within the gridview to the "myCurrentUser()" public string. I am inserting my code to hopefully make this clearer.
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Mar 5, 2010
I have a gridview based on a sqldatasource that has some colums from which two colums showing the data of two fields: field1 and field2. field1 is an ID which should not be updated and therefore it is readonly=true. The sql-query from the sqldatasource is:
SelectCommand="SELECT field1, field2 from anyView"
What I want is, that when a row is updated, then the value from field1 should be copied to field2 The update-query is:
UpdateCommand="UPDATE myTable SET field2=@field2 WHERE field1=@field1"
My idea was, that the @field2 paramter gets the value from the query string out of field1:
<UpdateParameters>
<asp:QueryStringParameter Name="field2" QueryStringField="field1" Type="Int32" />
</UpdateParameters>
But this does not work. Is there an easy way to copy the data from field1 to field2 when updating the row? In addition, is this possible, even if field2 ist not shown in the gridview (i.e. field2 is selected in the query but is not a field in the gridview but should be updated with value of field1).
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Dec 14, 2010
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.
How can i accomplish this?
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Apr 3, 2010
I have 3 gridviews in one of my web page, each of which will display different data based on the typeid. I have simplified the system structure in the image below(further description will be stated below the image):
As shown in the image above, the web site(presentation layer) will work closely with the Business Logic layer(BLL) and Data Access Layer(DLL). ObjectDataSource control will be the middle man to select, update, insert and delete the data in the gridviews.
During Select, returned data from the database at DAL will be stored in a datatable and return to BLL and then the website itself.
[code]....
However, the Update(command button) and Delete(template field) doesn't work,the RowUpdating and RowDeleting event wasn't trigger when I click on the button, but it works if I set the gridviews' datasourceid to the objectdatasource.
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Feb 17, 2010
Bug: UPDATE command Does NOT Work as Expected on a DataBound GridView This was tested in VS2005 and VS2008
Took a while to figure this out - A simple recurse thru Page Controls Makes UPDATE Not Work as expected.
To Recreate this bug:
A simple Gridview bound to an Objectdatasource on a page with ALLOWEDIT ALLOWDELETE
If one inserts some code (a function call in my example) that just recurses the PAGE controls in either the PAGE_PREINIT, PAGE_INIT, PAGE_INITCOMPLETE events,
Then the UPDATE does not FIRE! and After Pressing UPDATE the GRID does not BIND! You Get A Blank Page - Funny thing tought it's only the UPDATE Functionality that gets affected by this - Everything else works fine including EDIT & DELETE.
If the same function call (recurse thru page controls) is added in the PAGE_PRELOAD, PAGE_LOAD -- Then the UPDATE starts working again as expected.
BELOW Is SAMPLE Code using the NORTHWIND DB Products Table and a Typed DATASET.XSD - You can use your own datasource for the ObjectDatasource - (Note I took out the Foreingkey constraint in products table from Nortwind for delete to work)
NOTE: One should be able to just cut and paste the function PAGECONTROLS_RECURSETEST on any working form that has a bound Gridview with Update functionality and you should be able recreate the bug that way by calling the function from the different page_events
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Aug 11, 2010
How to update a colums value of a Row in a gridview on Row Command Event Handler. I am using a SQL Datasource.
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Mar 1, 2010
I have detailsview with a SQLDataSource to 1 table (City) and am referencing another table (Unit) for one if it's fields.
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I changed the Unit Code (City Table) field into a template field and am using a dropdownlist item to reference the Unit Name from the (Unit Table) with the CityTable.Unit Code = UnitTable.Unit Code. However when I go into the update and change the dropdownlist item to another Unit Name it is keeping the original Unit Code value or it might even be selecting the first value from the dropdownlist item.
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Jan 26, 2011
I get all hotels with my datalist. a label shows hotel names and a texbox gets order. I want to update values without clicking Submit.
I placed scriptmanager and update panel. I dont know next step
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