Forms Data Controls :: Validation And Neccesary Fields In Gridview?
Nov 11, 2010i want my gridview to be
1 - validate entries
2- check neccesary fields
before insertion or updation ?
i want my gridview to be
1 - validate entries
2- check neccesary fields
before insertion or updation ?
I am using TempleteFields for all columns in my GridView. In that columns I am using only some fields for customization but not all.
Is there any performance issue with Databound Fields vs Templete Fields in a GridView...?
Do I need to replace the remaining columns with Databound Columns instead of TempletField columns...?
I have a GridView, and I want Column1 to be equal to datatable data (filled by a SqlDataAdapter). Then I have two other fields by the SqlDataAdapter (first name, last name), and I want to have those two fields combined to form Column2. I have a TemplateField for my GridView that combines the first name and last name with Eval()'s, but the GridView places this combined field TemplateField and puts it as the first column.
How can I do this so that TemplateField can go in between fields that are databound?
I have seen a number of posts on this, but none that quite serve my needs. I have a GridView with template fields. I use postback because when a value is entered in one field a calculation is done to supply the value in another field. I simply loop through all the rows after each postback (there are not many so it is fast). I do not use a select command or button to select a row. After postback I do not know how to return the focus to the row that was being used. I can return the focus to the first row just by using gridview1.focus.
View 11 RepliesCurrently I have something like this, but when I click "update" the record doesn't get updated (but no error is returned).
[Code]....
My gridview displays fields from a table and allows for edit, delete and insert. I need to add a column with a derived field which will be calculated every time the user is either entering a new row or editing the value of the weight field which is one of the fields of the gridview. This calculation is done in the fly and won't be saved in the database.
View 8 Repliesare below all 3 points the same?
1)<boundfield>
<asp:button ....>
</boundfield> [code].....
I have a Gridview showing the data on one of my tables, and when I try to edit the data in one of the columns after I click update, rather than updating the record with the new value I typed in, the rows become null as in, everything in the row I just edited disappears. This inmediatly makes my application crash because one of the fields in my table (IssueDescription) doesn't allows null values.
This is the code, which is actually 100% auto-generated from when I created the GridView control and specified in the options to implement update, delete, edit options.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" DataKeyNames="ticketNum"
DataSourceID="SqlDataSource1" [code].....
What is making the rows turn into null after the update? I did some research and tried to define the Update behaviour myself using RowUpdating function. After hours of learning how to use it I got it to "work", but because the Update turns everything to null when it updates, the sqlconnection command I use to do the query sends null anyways. I can paste the C# code if you'd like to see it, though I'd rather not use it if the auto-generated by asp above can be fixed instead.
I have a web page with an object data source that is connect to an object access layer which retrirevs an Id, Name_En and Name_Local from some table, the object data source is connected to a GirdView, In the girdview i have a template control with a label inside it, i want to change the binding expression for the label depending on the current states of localization so for example if the page is arabic the label should bind to "Name_Local", if it's english then it should bind to "Name_En"
View 1 RepliesI've got a gridiew with I've bound data to using a linq query as a datasource.The issue I have now is that I'm not sure how i can go about adjusting the appearance of the results in the fields.For example, if I want to turn the results in field 1 into a hyperlink (per record, e.g. record 1's hyperlink would point to url "x" and record's hyperlink 2 would point to url "y") which points to a location determined by a db query based on the record's value, how can I do that?And how would I go about adding columns that aren't present in the results, like a checkbox for each record?I suppose the stumbling block for me is that when using a linq query as a datasource, I am not presented with a layout of any kind in the aspx page, unless I use a linqtoSQL datasource (Which I would rather not use as I can't use complex queries with it....can I?
View 7 RepliesI have a gridview with a template field in it.How can i do paging in a gridview with template fields?
View 3 RepliesI have a datatable with the following column names
ProviceID, ProvinceName, Year,
TPM, PM 10, PM 2.5, B(a)p
I'm trying to display data from this table in a gridview using template fields. Here's an example of a label in my item template
[Code]....
When i bind data to this grid view, i get an error saying column "PM 2" was not found. For some reason, the program is dropping the .5 from the column name. I am exploring the possibility of replacing the number with alphabets only but this may not be possible as the end user may not find it user friendly. Is there a way for me to get around this problem? I get a similar problem with B(a)p, it drops everything after the B. Any ideas on how to get the gridview to bind column names with special chars in it?
I am using gridview to display some columns with autogenerate column as 'true' and not added boundfields,headers.
And i am used stored preocedure for data source in gridview and i used dataset for gridview databind.
The gridview columns comes dynamically for each time.
I'm trying to retrieve all the data in the fields of the selectedRow in my gridview. Meaning that i get every field into separated values.
View 5 RepliesI am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
View 1 RepliesI have a gridview that is populating from a SQL DB and working fine. However, based upon certain data I find in fields in the SQL table, I want to place a 'n' or a 'y' in extra columns in the gridview that I am assuming need to be templatefields. My thought was I could maybe add 8 template columns and then I could put a 'y' in the appropriate column based upon the data I find the table. For the life of me, I cannot figure out how to do this. I want to do this at rowdatabound time ( i think) but I just cannot find out how to, in my code, put that 'y' in the columns. Is this the right way to do this or do I need to do it another way? How do I get that 'y' in the proper column?
View 3 RepliesI have a grid view attached to a custom query. The query selects data and the address data in the database is split into different fields like street_address1, mail_zip etc. etc. What I would like to do is display all the address data fields in my database in one field on the Grid View.
View 1 Repliesi would like to create custom columns in the GridView Control.For example:After performing SQL query, there are 4 columns bound to the control:
1. ID
2. Name
3. LA
4. LE
Now, for each row, I would like to add column5. Custom - which would read LA and LE values from each row, assign them to variables vLA and vLE respectfuly, and then, I'd take vLA and vLE to perform custom calculations every time the page is displayed.I know how to make a custom colum to display calculated result, butCan someone please help me how to read LA and LE values for each row?
Im a newbie, hoping any experts can lend a hand. I have a gridview table connected to an SQL database. I have auto generated the update and delete methods to allow me to edit the gridview.
However, I would like the editable data in the gridview to be replaced by a selectable drop-down box. The drop down box is referencing an sql table for selection.
i was wondering if it is possible to make a gridview show only specific fields according to other fields in the grid view....
such as showing a button for one row but not the other due to different field values
I have a gridview which sources information dynamically from database.Here when i go for the default "AllowSorting" flag equal to true, i am able to achieve sorting of all displayed columns except the textBox control column whose values refreshes to zero.
View 5 RepliesI'm using Visual Web Developer 2010 against SQL Server 2008 R2.
I have a number of GridViews and FormViews working now, with edit functionality. However I have one field in my main database table that is of type 'Text'. With that one field, the edits won't take. I click Edit, change the text in the GridView, and click Update, but it just reverts back to the unchanged text.
It seems like I've tried everything. Is there a way to make that work without having to code it the hard way with a Textarea control?
I have a need to call Oracle stored procs to populate a gridview. I'm able to call one stored proc to get the column header text and another one to get the corresponding data. Currently I'm using a datareader, but I want my gridview to have sorting and paging enabled, so likely I'll need to read the data into a datatable and then bind the gridview to it.I've never had to manually configure a gridview - usually just use autoformatting.1. Do I essentially set up the columns manually in the gridview since it has no data to go off of in design mode? I'm guessing most of these will be Bound fields. A few of my columns are going to display date values that need to be formatted a certain way
and one column will be a link that needs to call a second method to populate a different grid. I'm not sure what the syntax for this is.
I have a sql database and want to store the image format into the database. I want to then display the image in a gridview. For the database I have entered the location of the image and not sure if this is the right thing to do. I'm not very good at this stuff so could you make it as simple as possible.
View 3 RepliesI have Two fileds the names are QtyRec and QtyReq in my table when These two are identical(10=10) then corresponding recrod should not listed in Gridview. Can any one provide solution
Gridview Code is
Public Sub retriveDataToDataGrid()
Try
Dim connectionString As String = "Database=pjt;" & "Data Source=localhost;" & "User Id=root;Password=prasad123"
Dim query As String = "Select WONumber,paertno,mfgpart,manufacturer,QtyRec,QtyReq,QtyShort,Duedate,Notes from ilist order by WOnumber"
Dim connection As New MySqlConnection(connectionString)
Dim da As New MySqlDataAdapter(query, connection)
Dim ds As New DataSet()
If da.Fill(ds) Then
GVIL.DataSource = ds.Tables(0)
GVIL.DataBind()
End If
connection.Close()
Catch ex As Exception
Console.WriteLine(ex.Message)
End Try
End Sub