Forms Data Controls :: Displaying Individual Cell Values From A Database Table
Mar 18, 2010
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've been reading and trying to figure out a way for half a day yesterday, and any solutions seems to fit to this. Overview: My solution is building up xml files from different folders on another server. After the xml is built up, I can run a "File Mapping" which will grab the appropriate information from the a specific xml selected with a dropdown and pass it to the asp:repeater. The binding is done on load, reading all the xml elements and passing it to a collection of object that will be bound to the repeater( results.DataSource = listOfObjects; results.DataBind(); )
Now here is the problem. In each row of the table there is columns containing static informations and the last cell of the row is an img button that represent a gray checkmark and that on click should change to green. However, onclick now I only change the data to the xml, and on next "File map" it'll be there. I cannot simply refresh the page, because it takes a fairly long amount of time to refresh because most of the times there is over 350 records to load and above that, you cannot simply refresh page because the page is call through ajax and a refresh will bring you back to the default.aspx. I've already built a function to get the param back through jQuery, however I really have no clue how to bind it to the image. Current line with image:
IsQAComplete being the bool used used for checkmark which is referring to the listObject. <--- the listObjects Collection remains unchanged Get what the checkbox state should be referring to xml file.
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
What I have below is currently working on my site to display information within an article. What I am wondering is that within a lot of stories I have more than one 'SchoolID' included. All of these IDs are in our database within the 'ArticleSchool' table and linked to an 'ArticleID.' The statement below is only displaying the first 'SchoolID' listed within an article. Is there a way I would be able to display every 'SchoolID' within an article to grab information from? Will it not work in a label if there are multiple values? The 'ArticleSchool' table has rows for every article and a new instance if more than one 'SchoolID' is attached.
I copy in a DataTable a GridView to display this GridView in a another page. It works but the gridview's content is not encoded in UTF-8.
This is the code which copy the gridview in a DataTable :
protected void ButtonDisplay_Click(object sender, EventArgs e) { // On copie dans un DataTable toute GridView filtré DataTable dt = new DataTable(); for (int i = 0; i < GridView1.Columns.Count; i++)
I am using a simple Login function and need to record individual field values from MySQL database to compare with inputs.
My connection code:
Dim myConnection As MySqlConnection Dim myDataAdapter As MySqlDataAdapter Dim strSQL As String myConnection = New MySqlConnection("Database=mydatabase;Data Source=xx.xxx.xx.x;port=3362;UId=myID;Password=1234;") strSQL = "SELECT username,password FROM Login WHERE ID = '" & 1 & "'" myDataAdapter = New MySqlDataAdapter(strSQL, myConnection) myDataSet = New Dataset() myDataAdapter.Fill(myDataSet,"Login")
I have confirmed it is connecting by adding the following GridView.
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.
In my application Iam using GridView, in this there are fields (Quantity, Price, Amount) the user can enter Quantity Field value which is a template field (textbox). Iam calculating Amount(Quantity * Price) using Javascript and assigning to the Amount Column cells as below
Gridviewcell.innerText=Quanity * price.
and when user clicks on the Save button I want to add these details of Gridview to the database.
when I try to access the values of the gridview using below code
For i=0 to GridView.rows.count-1
GridView.Rows(i).Cells(2).toString ( for Example)
Next i
It is not displaying the changed value instead it is displaying the default value before calculating the amount.
Before implementing the Javascript part, I had done this in the code behind and it was working fine... Now I just dont want the page to get load so I used javascript.
able to access the value of Gridview cells which are assigned using Javascript.
I have an aspx page with a div containing an asp:Table with 1 row, 1 cell. From the codebehind, I read a user supplied text file and add rows/cells (vb). I would like my output to have indented text in certain rows. Example follows:
I have a dynamic Gridview that I build on the fly. It works great. Now, I want to put paging on it. I have put the following code as an event on Pageindexchanging. When I do, the system tells me that the BindGridControl is not declared. The other lines have no error on them. What am I doing wrong? The name of the Datagrid is MyGridview. If I comment out the BindGridControl the system does not get an error but it of course does not show the second page when I click on it.
[Code]....
I did it with DIV tags rather than trying dynamic page building
My gridview has a dropdownlist when the user clicks "Edit". my question is: How to I retrieve the value of the cell that contains a dropdownlist (when the user clicks on "Select")?
I am able to retrieve the information from the cell that has a textbox (textbox is displayed ONLY when the user clicks on Edit). But when I try to retrieve information from any cells that has a dropdownlist (dropdownlist is displayed ONLY when the user clicks on Edit), it comes up blank.
In order to retrieve the cell I have used the following below:
I have a datagrid whose columns are autogenerated (based on the results from an SQL SELECT query). However, I need to retrieve values from certain cells across the datagrid, using the following code to step through the results.
[Code]....
I need to specify all my columns using TemplateField?
So I have a gridview control and I am binding it's datasource dynamically base on a dropdownlist. The gridview contains autogenerated columns with auto generated edit buttons. The datasource binded to the gridview is IQueryable<T> where T will be different for different datasource.
My detail problem is below:
A GridView binded to datasource dynamically with all autogenerated columns. When user click edit link, it will display value in autogenerated textboxes.
When user click update link, I am able to capture the user entered value in the textboxes in RowUpdating event, then pass those values to Linq update function to update the database. Now, the problem begin when I try to dynamically add validation controls to each editing row. In RowDataBound event, I am checking the editrowindex then adding validation control to gridview cell and pointing to cell.controls[0] which is the textbox control when the row is in edit mode, I am dynamically setting the textbox control id so that the validation control can set controltovalidate property. The validation control works, but the updating function is setting everything on the grid to empty string.
I am check the textbox text value in the loop, which returns "" for all cells except the id column. It was returning the correct value before I add the validation control. I guess since I added the validation control on rowdatabound event, will it rerender it's own autogenerated textbox in edit mode so that the text value of textbox no longer available in rowupdating event?
Is there a better or correct way to get the cell textbox value? I am using ((TextBox)dc.Controls[0]).Text where dc is DataControlFieldCell in rowupdating event.
A DropDownList is put in a GridView's TemplateField. Its corresponding table cell at runtime shows three controls (verified by checking gv.Rows[iSelected].Cells[iColumn].Controls). The three controls are: 1. Literal; 2. DropDownList; 3. Literal. It is not the case for other controls, at least not for TextBox which I usually access by something like gv.Rows[iSelected].Cells[iColumn].Controls[0]. This is not a big problem because I can always access it by its static ClientID, but I am curious why so and whether other controls have the behavior.
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.
Im displaying a Gridview full of data but the column "Country" is displaying the CountryID and I want it to display the Country 'Name'", same with State/Prov and a Status column I have. I've looked around at BoundField Properties and such and can't seem to find where I can configure this. Is it straight within my DataSource? Here's my code:
GridView Code
[Code]....
Here is my DataSource Code
[Code]....
Is it within the SELECT statement of the DataSource where I can need to configure using "Country" not "CountryID"or "Status" not "StatusID"?
I have one gridview with two columns.. I am fetching data which is like invno, invno, invno, invno, invno, invno, invno, invno,.......... in one column.. but problem is when ifetch more data its Growing Across Gridview and Table.. i used following code
