Forms Data Controls :: Populate A Dropdonlist After A Postback In A Footer Of A Gridview?
Oct 5, 2010
I'm trying to populate a dropdonlist after a postback in a footer of a gridview, I've been copyng so many examples where they say to do it this way but I keep gettin' exception when databinding why?
I have a customized gridvew i.e. grvResult. There is a textbox and a InsertButton in the footer.
If there is a data populated into gridview it is showing GridView footer and inserting data but if there is no data in gridview then its footer also not visible.
I have tried in two ways to make footer visible but it is showing following error:
Object reference not set to an instance of an object.
i have a gridview to disply the customers forecast details with quantity. i need to have the quantity total in footer of the gridview. how can we do this in gridview..
but in the output for footer its created one more column at the end but i dont want to create a new column for this footer because all other detail cells are empty. i want to show the Footer without affect any other columns.if i include the footer code in the mid of the bound field then also its created a new column so the details cells are empty,
After displaying a summary data in Gridview Column Footer in ASP.Net...is there a way that i can then use that summary(total information) in other parts of the application? For instance, like adding the total from the GridView footer to a different data that appears in a textbox somewhere else within the app?
So if i have a GridView like this
entry1 10 entry2 20 Total 30 <----this is the info in the footer
then add this footer total to a total from another control? How can i get this done? How do i go about using that total from the gridview in my app?
I've been trying to get the total of some columns in my GridView. I used the code in the MSDN and finally did this:
[Code]....
GVcm is the name of my gridview.I have a button that loads the gridview, but it does not show the total. I don't know if I have to call this method inside the ButtonClick Event, I'm still a noob with c# and asp.net.Other things that maybe you should know, I'm not using template fields, I don't know if that is the problem I'm using normal bounfields.
If I want to add the value of a GridView footer to say, the values in 3 textbox, and then put the summed up value in a 4th textbox called txtSum...how do i go about getting this done? Are there any examples out there that I can take a look at?
So to further elaborate on the task I need to complete...the textboxes do not reside within the GridView. I want to take the total within the footer of the GridView and add it to values that are within textboxes which are located in other locations of the page, then displaying the result in another textBox that is also located somewhere else on the page. Meaning, there are 5 different controls located at several locations on the page which are involved.
How can i add a textBox to the footer of a gridview? I just want to add one testBox which would display the total of one of the gridview columns. Are there any examples out there that I can take a look at? My google search did not return any.
Here is what my Gridview looks like right now...
[Code]....
Basically i want my grid view to look like this:
First Entry 20 Second Entry 50 Fifth Entry 30 Total (Footer) 100 <== this in a textbox.
So only one Textbox is required in the whole GridView..
i have used gridview to display data from the database and in the gridview i want to add two buttons CONFIRM and CANCEL...the problem is when i am addind two buttons they are added in another columns footer....how to align them in the center of the gridview...
I am dynamically binding dataset to a gridview(No Columns at design time) .I need to show Totals for some of the dynamically generated columns in the footer.
I have a grid that contains a footer row conating the textboxes to insert data. The problem is that when there is no row in the the grid the header and the footer does not get displayed. Is there any way to show header and footer when there is no row in the grid?
I have implemented column tolals in the footer of my gridview using the technicque described in this article [URL] .
Now I would like to have a total of the 7 column totals that are displayed in the footer. Can anyone tell me how to do this. I would like to display this in a label or an addition row in the footer if that is possible.
I am having problems with displaying the totals in the footer of a gridview. I am writing a page whereby users can enter comments and marks for an online photo competition.
The page has a details view to enter the comment and mark. Its has a details view where the photo is displayed. It has a gridview where the comments and marks that have been entered are displayed.
It works well - the details view allows comment and mark entry and the gridview show the comments and marks as they are entered. The problems are twofold. Firstly the total shows double the marks that should be displayed. Secondly, when you leave the page and then return later, you have to refresh the page before it will show the latest comment and mark even though it shows this immediately after entering the data.
I wanted to create CrossTab o/p as In Ms Access. tried couple of articles based upon coding in C# but in one way or other they could not give me final result. Then I posted here.
muhammedsalimp almost resolved my query. But only problem I am left with is adding a TotalSum to the selective columns in GridView or In SQL.
It can be seen from the screen-shot that columns 1-7 does not require sum but columns after 7 all will require sum as they are the Items passed their now will vary from day to day.
I have a GridView with column headers that include text and images. I would like to have the header essentially duplicated at the bottom of the GridView. how to accomplish this? I have found some internet resources that have explained how to use the GridView PreRender event to add an extra footer row but I'm trying to find a simple way to populate that row with the same text and images that appear in the header row. I am not using header templates. I am using the footer row of the GridView as the "insert" row.
I've got a gridview in which I have a footer that I use to insert rows into the grid. However, if the grid is empty no data is displayed (including the footer). Is there a way to still show the footer row so a user can insert additional rows into the grid despite it starting out as empty?
I have a gridview, I am binding the gridview with a datatable and in the gridView, my autogenerateColumn is set to true since I am generating the columns dynamically coming from database. I am also doing doing showFooter =true. There are values in the rows of these dynamically generated columns. I need to calculate the average of each of these columns and display it in the footer. so for e.g, I have
A B C 10 11 12 13 14 15 16 12 11 -- -- -- 13 12.3 12.6
I want to develop a page with gridview which allows me to update/delete/insert records in a database table. I put 2 buttons in the FooterTemplate with ID = InsertNew and ID = InsertCancel. The insert function works fine but seems that the system won't go to the section 'ElseIf e.CommandName = "InsertCancel" Then'. Here is the code behind:
[Code]....
I just want to clear all the fields in the footer when user click the cancel button.
I utilized the "Enhancing the GridView (Inserting a New Record from the GridView’s Footer)" tutorial as an example to add a new record to the Access Database through the footer. Put a break at the RowCommand, but that never happens and the data that I put into the cells in the footer just sit there when I click the ADD link. I have included the portion of the code in CourseBuildDetail.apsx that deals with the TAB that contains the GridView, along with ObjectDataSource and the code that should be triggered when the Add link is click - CourseBuildDetail.apsx.cs. So - what am I missing - example works great.
I am trying to retrieve the values from the textboxes in the gridview footer row but getting the following error when trying to save the changes:
Object reference not set to an instance of an object. Description:An unhandled exception occurred during the execution of the current web request. 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:
[Code]....
Line 63: Line 64: Line 65: jobName = CType(footerRow.FindControl("txtJobName"), TextBox).TextLine 66: Line 67: jobDescription = CType(footerRow.FindControl("txtJobDescr"), TextBox).Text
Below is the gridview aspx code:
[Code].....
Below is the VB.NET code:
[Code]....
how to add gridiview footer row textbox values to a database....