ADO.NET :: Edit Cell With DataView In SqlDataSource?
Nov 6, 2010What is the problem:
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Not stored in the database.
What is the problem:
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Not stored in the database.
I am trying to retrieve the contents for one cell from my database table from codebehind, but It keeps returning NULL with this error
System.NullReferenceException: Object reference not set to an instance of an object.
It errors out at this line: dt = dv.ToTable();
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In my Website, I have a gridview which has datasource dynamically bound from database table. Requirement:
Now I want that when a user clicks in a cell of the gridview it becomes editable and he can edit the cell values and update the database accordingly. I dont wish to use the in-built edit, delete and update buttons of gridview. How can I do that?
in my Project there is Asp.net GridView ( that putted into a update panel).i did open Gridview In Jquery Ui Dialog.Is there any way exist to edit a specific column grid View cells in microwave on mouse over on that cell?for example displaying a div on that position and doing an action.
View 1 RepliesI'm trying to update items in my SQL database from a ListView. It works, but all entries in the database update. Not just the one I'm working on. I backed up the database prior to testing, so there's not any issues there.This is how my SqlDataSource UPDATE command is setup:
SQL Code:
UPDATE entries SET duration = @duration, checkinDate = @checkinDate, receivedBy = @receivedBy, cosmeticDmgIn = @cosmeticDmgIn, STATUS = N'closed'
I don't have any code setup to update the database, which is probably the issue.When I load the ListView, select edit, type in my edits, and click "Update", all the rows in my database, for that column, are updated with that data.I tried inserting the parameters manually, within the ItemUpdating event, but it never works.
I have a gridview to display data, and one of columns was the file path (string). I want to when switch to edit mode, this column will be a editbox + a button, (so if the user click on the button, an OpenFileDialog will be show and he can select a new file) How can I do that?
View 1 Repliesversion of sql management studio did not lock me out from a table. Why does this R2 version, after I say open all rows in a table, not allow me to then click on any cell I want to edit data?It appears just the top 200 rows will allow this. How do I change this setting? What is the purpose of locking like this anyways?
View 1 RepliesI want to change single cell value and color by click on cell in grid. and i want select more one cell.this process only happen in client side after giving approval only i want to upload in database.
View 1 Replieshow do i edit and delete in gridview without sqldatasource commands?
View 2 RepliesI have a gridview control having 4 columns. one of the column is of type linkcolumn. user has to enters data for each column.
How can we edit link column cell. if i click on this cell nothing happen.i set its readonly to false also.
With asp 2.0 and vwd 2005, I have a page with a radiobuttonlist, textbox and gridview with edit/delete. Using the radiobuttonlist, the user selects a search type and then enters the criteria in the text box. the click event of a submit button checks the rbl.selectedindex and chooses a sqldatasource.selectcommand with the where clause getting its criteria from the textbox. The gridview loads the data, but the edit/delete are not working. Code and relevant markup is below
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I am trying to put the select command in code behind:
sdsAdd.SelectCommand = String.Format("SELECT Classes.ClassId, Committed, CallNumber, SubjectArea, CourseNumber, SectionNumber, GradingBasis, NumberOfUnits, NetId FROM Classes INNER JOIN EnrollmentAdjustmentClasses ON EnrollmentAdjustmentClasses.ClassId=Classes.ClassId
WHERE AllFormsId='4' AND SectionId='1' AND NetId=@NetId AND Committed='True' AND EnrollmentAdjustmentClasses.FormId={0}", Request.QueryString["FormId"].ToInteger32());
gvAdd.DataBind();
When I do that, then click edit to edit the selected item, the item disappears from my gvadd. What am I doing wrong?
Currently I have a grid view with few rows of data & edit and update for each row but I want it to be done on a single click with w external edit & save button how can the functionality be performed.
View 1 Repliesi have a DetailsView that is populated by a Linq to Entities query. Example query is below.
Dim leaveApp = From L In db.CompassionateLeaveApplications _
I have a Gridview with edit/delete button & in row data one field is a month value.
I want the edit/delete button in that row to disappear if the month in the row is past month.
How could I do this ? I have set the label1.text = current month but I do not know how to set the edit/delete button to be visible/invisible on the condition of the data in the row.
In my asp.net application i'm using gridview to which i'm binding data dynamically by writing a select query in code behined file (all column's are autogenerated) now i want to change gridview cell to edit mode from label to textbox or dropdown on clicking of gridview's cell.How can i achive this in code behined file.
View 4 RepliesI have a grid view populated with some data included bit fields and I made an export to excel function For each row i need to check the cell with the bit value to change the cell color, but the cell is always empty, even if is the field is set to False or True. foreach (GridViewRow row in gv.Rows)
View 2 RepliesI'm having a weird problem where the GridView cell that I'm programmatically updating turns grey, and throws a null error when attempting to save row. I have been searching all day and have not been able to find a solution. I'm guessing there is a problem with my code, so here it is:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
How to set Height and ItemSource(Business Object as DataSource for Cell) for every Cell in DataGrid/ Grid? Shown below is part of code I am currently using with Grid Control. What I am currently doing is that I am using ListBoxItem, set Item Height and ItemSource at ListBoxItem Level, Add ListBoxitem to ListBox and then Add ListBox to Grid, It leaves me with just one row and multiple columns in the Grid, which is perhaps not the best way of doing it as it doesn't allow me to take benefits from UI Virtualization of Grid.
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I am open to use any control i.e. Grid/ DataGrid provided it allows me to set Cell Height and item source at Cell level. In my requirement, Cell height depends on the Item duration and size of image, which means the height of the cells may not be same across cells in any particular row.
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
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I want to populate GridView below with images:
<asp:GridView ID="GrdDynamic" runat="server" AutoGenerateColumns="False">
<Columns>
</Columns>
</asp:GridView>
The code below iterates through directory, then I collect image titles and want them to be populated in gridview. code in bold is not working well, gridview is only filled with the last image in list.
how to fill gridview cell-by-cell only with available amount of images?
i we click a table cell than color is blue and we again click a different cell the first color is remove and second is bule
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I need to add two DataViews together to have one Dataview that can then be bound to a Repeater.
I am plugging into someone else's API so I can't change the way the data is retreived at the SQL Level.
So essentially I want to do this:
DataView dView1 = getActiveModules();
DataView dView2 = getInactiveModules();
ModuleView = dView1 + dView2;
rptModules.DataSource = ModuleView.Tables[0];
rptModules.DataBind();
The two schemas for the views are identical just retrieving active and inactive modules.
What I want is to filter the dataview so I get top 10.
I googled it and found out that I had first to sort the dataview. Then add a column (int) to datatable. This column I then made a AutoIncrement on......
This works fine - I can see in the codebehind that it adds a column to the datatable that I called AutoInc.
Then make a RowFilter on the dataview - here it goes "wrong" for me.....
When using the line
datVie.RowFiler = "AutoInc < 11";
and bind it to a gridview I don't get a error - but it also don't show me any rows in the gridview...... If I comment the line out - I get all the rows in the dataview..
Can anyone see in my below code what is wrong?
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I have a DataView resulted from a query as below
Title
Return Type
The Inception
1
NFS
2
Tron Legacy
1
Documentary
3
Roadrash
2
I want to pass this object to a method which modifies it using linq query to return the Dataview object as below(without using loops anywhere in the code)
Title
Return Type
The Inception
Movie
NFS
Game
Tron Legacy
Movie
Documentary
Others
Roadrash
Game