Forms Data Controls :: Adding Values To A Table From Another Table Via Dropdown
Jan 3, 2010
I am fairly new to ASP.Net and web programming in general and I am having issues trying to add values from a dropdown list in my gridview to another table.
Here is my scenario. I have 2 tables in my SQL Express DB. When editing the values of table2 in a gridview, I would like to show some data from table1 in a dropdown so users can select a value from table 1 and enter that value in table 2.
I have the Gridview setup to show table2 data.
I created a field template and inserted my dropdown list and linked it to my table1 data source.
When I run my web form, I can click to edit one of the fields in the gridview, and my dropdown list correctly displays the data from table 1, but when I try to update the table2 with the dropdown value, it doesn't correctly update. The row in table2 never updates.
posting the dropdown value from table 1 into the appropriate field in table2..
Again, I am new to this and have been following the tutorials etc on this site, but can't find one pertaining to this topic.
I guess the code is totally right and doesn't require any change in it,, however am getting an error which says "Conversion failed when converting the varchar value '11/11/2010' to data type int."check the attached file ..
I have two tables for storing language translations - tblEN and tblES. They have the same structure which is nvcEnglish and nvcLocal - both nVarChar fields.
In nvcLocal of the Spanish table, I enter the Spanish translations of words and phrases used within my app. Problem is, when I add a bunch of new records to the English table I also have to go in and repeat the data entry into the Spanish table. I am wondering if there is a way to import the newly added records into the Spanish table using Transact SQL?The plain language query would be something like:
If the data in tblEN.nvcEnglish does not exist in tblES.nvcEnglish then insert a new row into tblES with the values from tblEN
I have a ASP:DropDown list which is populated by the following:
public void Fill1() { string connectionString = WebConfigurationManager.ConnectionStrings["CRM2Sage"].ConnectionString; using (SqlConnection _con = new SqlConnection(connectionString)) using (SqlCommand cmd = new SqlCommand("SELECT * FROM Products", _con)) {
I need to let my user add rows dynamically to a table, and after doing some research, it seems the best way to do this is through a GridView bound to a DataTable. However, I'm really struggling adding dropdownlists to the datatable, and this showing them in the gridview.
When the user opens the form, he or she will be presented with one row. ddl2 etc will be populated when ddl1 is selected etc etc. When appropriate, the textbox will be enabled allowing the user to enter a comment (this is to report errors, and since users are, at best, not to trust to write the same thing twice, I need to use ddls.
Now comes the question - how do I add a ddl to the datatable? I've tried several ways, but I cannot get them added.
Here I am binding a gridview. I dont know exactly how many rows it will exists. there may be from 1 to n rows possible there are 4 columns.
Now what I want , i.e. after gridciew binds records, suppose there are 4 rows are bounded to gridview, I want to send all rows data through mail, but in my html format there are fixed rows. I want to add rows according to throws which gridview having.
suppose gridview binds 3 rows the mail format should be like this
Date From Date To Place Days 12/12/2010 14/12/2010 Mumbai 2 12/12/2010 16/12/2010 Goa 4 12/12/2010 20/12/2010 Pune 8
1. first tell me how to get this data from gridview in variables so that i can put them in my mail format
2. this condition if grid bind only three records cos I have fiexd rows in my html format.. but if grid is haing 5 records then how will I add rows to table in my mail html format
I have a GridView and DetailsView on the same page. If the GridView has data, I can Select a row and it brings up the DetailsView from which I can edit that record or click NEW to create a new record. Without a record to Edit, the New link and the DetailsView control is not visible. What is considered best practices for Inserting the 1st record using a same page Gridview / DetailsView combination?
I have an asp:Table and around the mid point of the table there is a DDL with values 2-5. What I want to do is add the selected amount of rows using AJAX right after the table row that has the DDL in it. I know how to dynamicly crate the rows, the info in the rows, and how to use AJAX to make things. Problem is I can not put the ContentTemplate tag inbetween the asp:TableRow which would mark the location I want the dynamic rows to start being added. I did some searching on here but most posts I find start with making the table from code and not the asp:Table tag
I am using VB in Visual Studio 2008 and a ASP.NET web page.I have populated a gridview with data aquired from form data. For use in the current session. I am not bound to any database.I would like to pull the headers and also the data one row at a time.How can I do this?I thought I could just do something like myString=Gridview.SelectedRow.Cells.Item(1).Text
2)drop down list to select the control to be added.
3)button is an ADD button .
when the "ADD" button is clicked the text entered in the "caption" text box has to appear in the first cell of the first row in the table and the control selected from the dropdown list has to be added to the second cell of the same row. similarly many such captions and controls have to be dynamically addded to the successive rows of the table as per user selection ( note: the previously selected control and caption label must persist on furthur selections .
how do i go about the adding controls and the text into the table part ?
I am stuck in chart controls...Here is my prob... There is a ListBox containing some items...when user selects multiple items from the list box I want to generate a dynamic table with the number of columns same as that of the number items selected in the listbox. And for each selected item I want to show a seperate chart in the columns...Currently I want the same chart control for every selected item (i.e. a static hard coded chart that i will replace later by dynamic values)....I am using a method that draws a chart control using a sample dataset... I am calling it each time when a new column is created..Also the DrawChart method executes for the first column only and throws an index out of range exception! after the first execution...my code is not working...here
I have a dropdown list inside gridview which has a object data source and I am adding the list items as true, false which stores in the database table as a bit value. Even if i am addin the values 1 and 0 to the drop down list, its throwing the below error'grdDebug' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value My code to add the dropdownlist with list items are as below
I have a gridview that have some boundfield and a table inside a tamplatefield. That table have 6 input (hidden) that binds when the page load.
How can I get the values of those 6 input inside the table from server side?
I know how to get the boundfield values , with
Dim selectedRow As GridViewRow = GridDetail.SelectedRow Dim fName As String = selectedRow.Cells(1).Text Dim lName As String = selectedRow.Cells(2).Text Dim Iname As String = selectedRow.Cells(3).Text
I am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
[URL]
There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
[URL]
The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
To start with - I'm using VS 2008/.NET 3.5 and working in a company-provided template that leaves me restricted to some/many settings that go beyond the body of the page itself. That said, I need to create a page that will display data from individual cells in a database table that, when lined up would look like a normal sentence. Based on certain criteria I would have certain sections of the sentences hide (ex. if it contains a key phrase or if it's empty).
I've seen a method in which Labels could be used to achieve this effect, where I would assign it the grid coordinates of the cell in a table, but I could never get it to work. I've been successfully connected to the table (LINQDataSource) but still have a blank canvas without this fundamental display technique as that will be all that's in it.
I need to write a query to populate a gridview with minimum rates in ascending order for a month from three tables.For example i have three tables A,B,C as follows
TABLE A TABLE B TABLE C Id id id Quote_no Quote_no Quote_ no Name Rate1 Equip_name Rate2 E_rate Date R1_rate R2_rate Date
Now if the data is as follows
I need to get the Name from Table A ,minimum Rate1 and Rate2 values for a month in a dropdownlist from date field from Table B and the corresponding minimum rate(E_rate) for Equipment E1 and E2 only from Table C for the month in ascending order group by Name.
TABLE A
id Quote_no Name 1 101 XYZ
2 102 ABC TABLE B id Quote_no Rate1 Rate2 Date
1 101 105 200 12/11/2010
2 102 90 210 15/11/2010
TABLE C id Quote_no Equip_name E_rate R1_rate R2_Rate Date
I´m looking for some advice on how to create an table showing bookings, a table containing mon-sun on the horizontal axis and times at the vertical. The admin is able to edit each days bookable times (first bookable time, last bookable time) - The slottime is constant.
What I want is let the admin click on eacha cell to remove it/add it when removed. And other features as well, like create an booking for a customer.
What would be the easiest way to achive this, at the moment I use dynamic links since I cant get asp:buttons to work and the code to create an dynamic asp:table row by row and this produces some ugly code.
So any advice on how to achive such an "schedule".
I want to name the headers of the ListView control acording to values of the first rows of a table in the database. This I want to do because the number of columns varies for each cutstomer and also the name of the column.
I have a GridView control that has a SQLDataSource.
The GridView provides me with a list of musical artists (from the tblArtists)
In the Grid, I have a field, FKGenreID, that is a Foreign Key value for music Genres.
(An example of the data in that field would be "7", which upon lookup would mean Classical in the tblGenreList table.)
What I'd like to do is add a DropDownList control that looks up the tblGenreList table and populates the DropDownList with the ID and Description from the tblGenreList Lookup table.
Now the tricky part is that if the GridView field (FKGenreID) has a value, then I'd like the corresponding Genre Description to be displayed in the DropDownList
Alternately, if there is no value for FKGenreID in the GridView, then I'd like the DropDownList to show that nothing was selected, but have the list of Genres available.
Most importantly here, when the user makes a selection, I'd like the GenreID (from the DropDownList) to be entered into the FKGenreID field in the GridView field.
My thought is that a gridview record may or may not have a value in the FKGenreID field. Either way, the DropDownList is bound to that field. The DropDownList would display a list ofGenre Descriptions for the user to select from. Upon selection, the GenreID column of the DropDownList becomes the value in for the FKGenreID field in the GridView.
Is this possible?
In case it matters, I'm using ASP.NET 4, Visual Studio 2010, and coding in VB
I want to dynamically bind dataset values into datagrid's header datafield.
Is it possible? To be more clear, when you click on datagrid's (Collection) from properties window, you get selected columns created from Bound column. So in those columns I want to dynamically display dataset's table values in those columns.
i.e like ds.Tables[0].Rows[0][0].
Is it possible to do it in Datagrid ItemDataBound function like,
e.Item.Cells[1].Text = ds.Tables[0].Rows[0][0]
or something like this? I know the above code is wrong and wont work since I tried it out and while building it throwed error saying, Cannot implicitly convert type 'object' to 'string'.
