Forms Data Controls :: GridView - Check Box Perform 2 Operations Simultaneously?
Apr 9, 2010
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.
GridviewCode
<asp:GridView ID="GVData" runat="server" Height="75px" Width="76px" CaptionAlign="Top"
Font-Size="Medium" EnableModelValidation="True" [code]....
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May 12, 2010
when i want insert a record i see an error like this
Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key.
with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext();
MainMenuLink li = new MainMenuLink { Link ="../error/error.aspx", LinkSubject = "subject" };
db.MainMenuLinks.InsertOnSubmit(li);
db.SubmitChanges();
ShowLinks();
what is the problem?
my table have a primary key but i dont know why give an error!!!
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Oct 21, 2015
How to do CRUD in LINQ?
how to perform updation using linq where i have multiple conditions for for single row and updating multiple fields to that row?
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May 11, 2010
when i want insert a record i see an error like this Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key. with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext();
MainMenuLink li = new MainMenuLink { Link = "www.tprogrammer.com", LinkSubject = "subject" };
db.MainMenuLinks.InsertOnSubmit(li); [code]....
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Jan 19, 2010
I find myself needing to preform the same actions on both HtmlControls and WebControls. I am a firm believer in DRY and find the fact that there is only the Control class to use if I want to consolidate the functions on both types. The problem that I have with using Control is that there certain properties that both HtmlControl and WebControl expose that Control does not. In the current case, the Attributes property is the problem. how to avoid the duplication of code in this type of instance?
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Jan 14, 2011
Is it possible to perform mathematical operations within a .aspx View.? for example..lets say i have a total number of pencils of say 100. and i have 12 students on a data table with his or her name, and the number of pencils she has
Student Name: Pencil #
John 10
Sarah 12
Linus 19
But while rendering the view i want to calculate the Percentage of pencils one student possesses out of the total. (John would have 10% of the total 100 pencils)
How would i just perform this basic math operation, and encode the result into the view. I know i need to store the 100, and divide by each count of pencils for each student within the foreach loop. but i keep getting 0. This seems very elementary i know.. Help would be very appreciated. Google seems to have nothing for me.
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Jan 13, 2010
i am displaying a gridview from db(SQL2005), which display leave table where employee apply leave and submit to admin. Viewing the leave table in gridview the admin sanction or rejected their leave request, by clicking the check box displays on each gridview rows and click on sanction or rejected button.
here i am sending SMS to the employee number displaying in the gridview (taking the employee phone number and send SMS).. this i have done using bulk SMS services, i have taken the number using the following
if check conditions...
but now what the problem is i have to delete the gridview rows.. i am using the same employee phonenumber to delete the corresponding gridview, but if suppose the single employee applied for two or more leave, the gridview display all leave for the single employee, the admin have sanction only one leave for that employee.. so if he checks the check box and click on OK button.. it have to delete the corresponding row as well as send SMS to the phonenumber of the employee.. Other leaves of the same employee display in the gridview.. i used the following coding
Protected Sub bttnsanction_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bttnsanction.Click
Dim row As GridViewRow
Dim selection As New ArrayList()
For i As Integer = 0 To GridView1.Rows.Count - 1.........
I am using the Sno as primary key in leave table.. where i want to delete the corresponding row which sends SMS to employee number also the delete the row of corresponding Sno.. i have to get the corresponding gridview row sno in the delete store procedure..
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Sep 20, 2015
I only need one textbox inside gridview and other operational buttons like add , edit , delete in gridview. I just need that these buttons can save the data in datatable like we do :
DataTable dt = new Datatable();
I don't want to save it in database at this stage. CRUD Operations using datatable inside gridview is my aim.
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Dec 2, 2013
I have seen a sample from the Author of this Blog URL....this works fine but how to apply CRUDE operations & Is it possible to set CommandName/ Command Argument using JQuery in asp.net using C#?
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Jun 28, 2010
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
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Feb 9, 2010
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#
[URL]
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Nov 12, 2010
i have a UP and DOWN buttons ouside a gridview and a checkbox inside the templated field .I will check the checkbox to sleect a row , after that if i click on UP button the checkbox above the selected checkbox should be selected.
same with when i click on DOWN button the checkbox below the selected checkbox should be selected.
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Jan 6, 2010
I have a grid view with two columns...one column has a no. like (123) and a check box....which user can checked or unchecked......all I need to do is that I need to disable the man handling of that check box......rather I would like to see a seperate grid view with the same no. of rows as of the first and in this gridview I may allow to type in or scan the no. and if this scanned or typed number matches any no. in the first gridview number then the corresponding check box should be checked/unchecked.
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Dec 15, 2010
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".
[code]...
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Feb 22, 2014
How to ? Perform the search function in gridview ...
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May 7, 2015
I have a textbox and a search button and I have a company name "aaa" in grid view
If I typed in textbox "aaa" and click on search button it works
but:
If I typed in textbox "Aaa" and click on search button it doesn't work
I want if i typed "aaa" or "Aaa" in both cases works as it is same word
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Feb 23, 2010
im reading checkbox value which is checked on my gridview but as per my code is missing the 1st one which on top but i select from the middle then it is working fine here is link for gridviewhelper classes [URL] and im calling this code from gridviewhelper classes on page load event
Dim helper As New GridViewHelper(Me.GridView2)
helper.RegisterGroup("heading", True, True)
AddHandler helper.GroupHeader, AddressOf helper_GroupHeader
and here is my code
Dim sc As New StringCollection()
Dim id As String = String.Empty
For i As Integer = 0 To GridView2.Rows.Count - 1
'loop the GridView Rows
Dim cb As CheckBox = DirectCast(GridView2.Rows(i).Cells(2).FindControl("CheckBox2"), CheckBox)
'find the CheckBox
If cb IsNot Nothing Then
If cb.Checked Then
id = GridView2.Rows(i).Cells(1).Text
sc.Add(id)
MsgBox(id)
End If
End If
Next
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Jan 19, 2011
I need to perform a validation to check whether a TextBox value is empty on Dropown list selected Index change using validation controls in asp.net
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Nov 16, 2010
I have a gridview that returns several records for the same user and each record has a column with a check box. I need to allow the user to choose only one to check. Also one check box is always supposed to be checked. What is the best way to do it? I was thinking of writing a stored procedure that checks if only one is checked, and then returns true or false. I think there is a more efficient way to do it...
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Jan 24, 2011
I have a GridView and check box in one of the columns.what i need to do is, if the checkbox is checked i need to replace it with a Tick Mark image instead of checkbox, otherwise leave the column blank.
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Dec 9, 2010
I have a page with a simple textbox, when an OrderNo is entered in te textbox the page is populated with 2 or 3 gridviews depending if the order has items reserved or on back order.
GridView1 has data about the order, like status, payment details.
GridView2 has data about orderitems, each row displays an item from the order with stock and order quantities
GridView3 has data about backorders, each row displays an item from the order with quantity reserved and quantity on back order. As is no data for GridView3 if order is not on backorder I thought that I can enclose my code inside an if block
if GridView3 isnot nothing then
'getting some data from the cells in GridView3
endif
but the code still executes.
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Oct 5, 2010
Documentation for using a checkbox with a gridview has the following statement:Because a check box can display only a selected or an unselected state, a CheckBoxField object can be bound only to a field with a Boolean data type or a string that can be parsed byParse.No example has yet been found to explain how using Parse to control the value of theis done. Interestingly enough I can find a fine example for the unlikely scenario of embedding a bulleted list in a grid cell.
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Apr 7, 2010
I have loaded up a gridview object with data. I have turned on Edit on the grid. It lets me edit the data, but I also want to put some code to check for correct data in each field. I tried to assign a requiredfieldvalitor, comparevaliditor but they don't work. Is there an event I can capture to fire up some code before the grid sves my data?
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Aug 2, 2010
I wrote an ASP .NET database app, that store data in the database, for some reason, and i've tried all that I know, when two or more users submit info simultaneously, their data gets store wrong, i.e. the data gets mixed up.
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Jun 7, 2010
I have a column of type bit, I want to display checkboxes on bases of values 1 and 0. So that in edit mode if i unchecked the box then the database should contain the value 0.
[Code]....
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