Forms Data Controls :: Getting Values From Textboxes In Gridview Footer Row?
Aug 1, 2010
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:
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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:
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Below is the VB.NET code:
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how to add gridiview footer row textbox values to a database....
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 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
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Repeater.aspx.cs
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Right now the problem is im not able to fetch the values of the textboxes present in the newly generated rows.
I have grid view when click Search gridview will display and also click from dropdownlist it should display. Have a link in gridview if click link the values should pass to another page in textboxes so that I can update again. My issue is I cannot search when click search button and not from dropdown also.
Private Sub BindGridView() Try Dim filter As String = "" If ddlOwnerDepartment.SelectedValue <> "" Then filter = filter & " AND OwnerDepartment ='" & ddlOwnerDepartment.SelectedValue & "'"
I want to calculate the service tax on some amount. The value of service tax must be taken from textbox1.text and amount from textbox2.text and then after calculating it must be store in another textbox say,textbox3.text
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...
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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?
