Forms Data Controls :: Place The Textboxes In The ItemTemplate In Order To Perform Row Updates?
Nov 5, 2010
I have a gridview that is inside a tabcontainer. In this gridview, I have a commandfield that shows an edit button. It also uses an ItemTemplate to display read-only data and an EditItemTemplate containing textboxes for updating rows. Clicking the "Edit"button works as it triggers the RowEditing event. In this event, I assign the new edit index and rebind the datatable to the gridview. It also displays all controls declared in the EditItemTemplate when the "Edit" button is clicked. But for some reason, when I hit the "Update" button, the RowUpdating event doesn't fire unless I set CausesValidation="false". But with this setting, I am still unable to update a row in the gridview. It seems that gridview's editindex is reset to -1 as I can't seem to find any controls in my EditItemTemplate.
When run in debug mode, I noticed that the gridview's editindex resets to -1 even before the TabContainer's ActiveTabIndexChanged is fired and that the gridview's state changes to read-only as I can only find controls in the ItemTemplate in the RowUpdating event. There's nowhere else in my code that I rebind the gridview's datasource except in the RowEditing event. I have also watched the RowCreated and RowDataBound events but they both don't do any rebinding of the data to the gridview.
I am in a point where I want to place the textboxes in the ItemTemplate in order to perform row updates as I can't find anything on the web that can lead me to solve this problem
I am developing Online Food Ordering web application[asp.net+Sql]. I want to show automatic popup at admin side when user order for food. (Like fb notification). When user place order that time admin should get automatic popup.
I have done the itemtemplate and edittemplate,when I click on the button in itemtemplate, the edittemplate will show.But that row in itemtemplate will disappear.How can I keep that row in itemtemplate and ecotent in edittemplate both appear?
What i need is i need to bind last 10 Order in Gridview/details view with paging, and the same order detail also fetch from database and shown in another gridview.. if user click any oderNo in first Gridview/DetailView then i need to show Respective order detail in anther gridview..
without postback coz we already fetch 10 order with orderdetails from the database..and if user click next 10 orderNo using paging then again we need to load 10 orderNo with respective orderdeatils from database like this going on....as well as let me know how to take print of particular oder and order detail....?
I have a repeater which is binded using a Collection of Entity Data Framework.
Once the repeater is binded using the datasource, the user can control the no of rows present in the repeater using a Dropdown list on the page. For ex: if datasource has 2 rows, user want to add 3 more rows, user selects 5 from dropdown, which adds 3 additional rows to the Repeater. I am able to do this.
The repeater has textbox controls in each row. Now once the user enter the values in this textbox of the newly generated rows, the user can save the values entered with the no of rows specified.
I have a button which is outside the repeater and on click of this i need to validate all the textbox values and save them into dB accordingly.
Here is my code
Repeater.aspx
[Code]....
[Code]....
Repeater.aspx.cs
[Code]....
Right now the problem is im not able to fetch the values of the textboxes present in the newly generated rows.
I have a two gridviews that I populate it through some tables from a database.
In the same page I have a ASP:Button with onclick event.
When click is perform I wish to write a code that compares the old values of both gridviews (that retrieved from database), with the new values, and if changes were made then create the changes in the database.
I think that the best way is to loop every gridview sepertly, and compares it with the values in the database
How do I do that? Do you have a sample code that loops on gridview and compares with the old values to detect changes?
I have a stored procedure that updates orderhistory. When I test it from Enterprise Manager, that sucker works fine. But when accessing it from asp.net I get the following error... Procedure or function sp_UpdateOrderHistory has too many arguments specified. From my aspx page I created a gridview, enabled editing, deleted the columns I didn't want displayed. I specified the datasource, pointing at the sp for updating. So far so good..
I can click on Edit, and the edit fields are shown, but when I click UPDATE, the above error is generated. I've checked the sp parameters and they match (as far as I can tell) the update paramters in the page. Not sure why this is failing to update?
I've set up a formview with a Linqdata source to allow users to edit records. When I run it, edit data and submit, it blows up and tells me "Linq datasource6 does not support the Select property when the Delete, Insert or Update operations are enabled." I googled that warning and saw a couple of posts on this forum saying the problem is the slect statement has to be removed from the Linq data source for it to allow updates.
But if I remove the select statement then how do I show the user specific info on pageload? plus I thought the two way databind was an advantge of the datasource control.
I have GridView that is bound to an ObjectDataSource and within that GridView I have CheckBox, DropDownList, TextBox and Label controls. All the controls except the CheckBoxs are working like a champ or normal display and Delete (Insert is handled outside the GridView, it works also). The CheckBox values are passed into the update method for the ObjectDataSource as type byte. Without doing any custom coding the CheckBoxs were always unchecked (regardless of the data being 1 or 0) and when I edit a row in the GridView and saved the values the CheckBox controls would always be 0 even if the check boxes where checked. After searching web I found a suggestion to change the binding on the CheckBox controls from, Bind("Monday") to this, CheckUncheck(DataBinder.Eval(Container.DataItem, "Monday")) with CheckUncheck being a method to make 0 or null = false and 1 = true. This seemed to the do the trick and it set the CheckBoxs correctly in the DataGrid, I was giving myself high-fives, until I tried to update a row.
When doing the update, as with my first attempt, it would always set the CheckBox values to 0, thus ignoring the checked property of the CheckBox. So I search the web again and found a suggestion to handle the update manually, due to the binding being one way. So I created a myUnhappyGrid_RowUpdating event handler and changed all the columns in the GridView to template so I could do the old school .FindControl on them and grab the values. Once I was able to grab the values from the row to be updated I added them to the ObjectDataSource .UpdateParameters and called ObjectDataSource.Update() and it worked, kind of. Now came the next trial, it did the update into the database just fine and I was happy, until. I finished stepping though the code. As I stepped through the code the update on the ObjectDataSource got called two more times, thus undoing what I had just spent hours fixing. First, is the road traveled the right way to do it? Second, if I am on the correct road how can I suppress the additional two updates that follow my manual .update call on the ObjectDataSource?
I have a detailsview on my page binding a table with information about the employees. They can update their information. Some info should be visible but not updateable. I could change the update command not updating but I like the control where I can set the column to read only. In that way the employee will find the data visible and they will see that the field/column cannot be changed. But having the column read only will return a null-value into that column when editing and updating anything. Why is that? Shouldn't it just update it's read only value?
So I followed Scot Mitchell's tutorial from asp.net/learn on adding a checkbox column to be able to select multiple entries and delete them with the click of a button. When I make my selection and click the button it works on the database end, as the desired entries are deleted. However, the entries remain on the page after it reloads. if I refresh the page it's updated properly but I'd like it to automatically update after the button is clicked.
Also, I tried his method for adding check/uncheck all buttons to the top of the gridview and they don't seem to be working either.
I have the following gridvew that contains this information below
Type_id quantity Red 2 Blue 3 Green 6
Now, I would like to add a small button next to the type_id, so that whenever the user clicks on it, it reduces the quantity by 1 through the use of query, I wrote. see description below
Type_id quantity (button) Red 2 (button) Blue 3 (button) Green 6
I have a gridview with checkboxlist for each record. I was updating each record individually based on that check, but now they want it to be a bulk update instead of individual. So i have commented out my individual update and added a button below the gridview and created my button event, how to loop thru the gridview and find the checked records and call my update procedure.
i found something kinda close to what i need, but its in VB and not sure how to convert that to C#
I have placed Chekc box in Gridview when i select the check box can perform 2 operations simultaniously one is entire recordset is populated into form fileds and second one is can delete the selected record permanently from database table.following code for this fuctionality.
if it's possible to use the Gridview (SQLDatasource) UpdateCommand to actually perform an INSERT and not a true update.Here's the dealUsing a Select statement in my SQLDatasource,I'm retrieving records for which there are no History records for a specified period.(Essentially, I'm asking "Show me all records for which there are no historical records within a specified range").I'm using that result set to feed my GridView. Basically, I'm displaying all I need to know about the insert records sans one piece of info.When the user choose the "Edit" button, the row goes into edit mode.Using a template field, I've created a drop down box to allow the user to input the status of the data for that particular time period.When they click the save button,the idea is that the UpdateCommand will fire.However, when I click the save button (in edit mode),I get a postback error that tells me System.Data.SqlClient.SqlException: Must declare the scalar variable "@EQP_PK".
I would like to know how i could display data from an itemtemplate or any other form views/data-bound controls without having it render in tables? i know theres control adaptors, but is this reliable and will it work with asp.net 3.5?
I am working with a webdatagrid control. It is fairly simple in that it has Three template columns. Each column contains a separate control; a dropdownlist, webdatepicker and a command button. The webdatagrid is populated using ado.net code and the dropdownlist is populated using a sqldatasource object. I have a command button external to the webdatagrid that I am using to try and add a new row to the webdatagrid. The intention is that a new row will be created at the bottom of the grid that will contain each of the three controls, including having the dropdown populated. I cant seem to find the correct code to do this. I have tried several methods and it has been going on for some time. Can someone tell me if t is possible to do this and if so can they point me in the right direction?
I have tried many different combinations to try to get this to work, but I cannot. In the ItemTemplate of a Repeater control, I have a <form> tag. For this third party button to work, each button needs to be surrounded by <form></form> tags. I cannot get the first iteration of the repeater to display the tag, but 2, 3 and beyond, it will. It doesn't make sense to me. Because of this, IE is displaying the page in a funky way.
To see the generated code on the page, http://AdvancedSurveillancePro.com/services.aspx
i have a textbox in a itemTemplate inside a griview. It is called txtPIN. I need to retrieve the value the user typed in the txtPIN and determine if it matches. I did this:
For Each eRow As GridViewRow In gvTransaction.Rows CType(gvTransaction.Rows(eRow.RowIndex).FindControl("txtPIN"), TextBox).Text.ToString Next
I couldn't get the text value, I debugged and it retrieve
