Web Form content (http://cforedu.com) is not binding to my SQL database.Are there any debug syntax errors (i.e., connectionString, etc.) found in the web.config file?web.config code reads:
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After clicking the Web Form Submit 'button', nothing binds to the SQL database. The web form is located at
page code:
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button code:
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I have a brand new VS 2008 website using 3.5 frame. Default page works but if I add a chart or Gridview I get: Parser Error Message: Could not load file or assembly 'System.Web.DataVisualization, Version=3.5.0.0
in the Web.Config file the <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:TempImageFiles];" />
I am hosting on our own fully managed server - why the DataVisualization assembly is not being found. Also I was able to load the Default.aspx page until I tried to add a GridView to it. Now it too generates the assembly error eventhough I deleted it. If I comment out the DataVisualization assembly the default and test pages load - there are no controls on these pages. Ony text. Very confused. This is my first attempt at using VS 2008, I am using the trial version.
I am currently familiarizing myself to WebMatrix. I am interested in creating a webpage. I have installed all necessary programs. I have also created a webpage but when I try to run the program I get the following message:
URL Binding Failure Cannot start the website because admin privileges are required to bind to the hostname or port.
Recommendations: I thought I might do it manually. I went to the Site Panel, on the Main Page I then tried to select 'ASP.NET Web Pages Administration'. Clicking this and anything below it cause WebMatrix to crash. It also causes it to crash if I select run and not run with IE8 (no webpage is displayed even though i have a aspx page).
.I have a search page where I would search for an item and it would dispaly the results in a gridview...
I have allowed paging and set page size to 10..now I can see the 10 results in the first page and also see the page numbers at the bottom of gridview. But now when i click on the page 2, the method gridview_pageindexchanging is triggered but the result set is not dispalyed. My code is as below..
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i understand that the data is not binding in the GridView1_PageIndexChanging method..I do not know how can I make data bind..
I'm trying to build a chart in my application which will act as a client for an ASP.NET 3.5 web service that I created. The error I get is as follows:
Series data points do not support values of type System.Data.DataViewManagerListItemTypeDescriptor only values of these types can be used: Double, Decimal, Single, int, long, uint, ulong, String, DateTime, short, ushort.
I've tried various ways to resolve this but can't. This error points at the
chtStats.DataBind() line in the code below:
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regarding getting data from XML file and binding gridview with data .
View 6 RepliesI have a GridView or DetailsView and its bound to a CslaDataSource.I noticed that the "Object_Select()" event is fired automatically with every time the page is loaded or refreshed.How I can perfrom mnaual biding between the DetailsView Control and CslaDataSource ?I want to control binding via code using the DetailsView.DataBind() method in certain cases only.
View 4 RepliesGridview data binding which already has some data?
DataTable dt = new DataTable();
not quit sure where I've go wrong with this but hopefully someone might have an idea why this isn't working:
This what I thought would work:
[code]....
But it's not! what I get for the OnClientClick attribute is: "DeleteRowKey=<%# dataBinder.Eval(Container.dataItem, "idx_mstrWord") %> "
I've tried several variations (EVAL, BIND, specifying the container and not specifying the container),
none of which gives the expected results; OnClientClick="DeleteKeyRow=12345"
If I add a label and set the text to: <%# dataBinder.Eval(Container.dataItem, "idx_mstrWord") %> I get a number which is what I should but if I try to get it to embed it so my cleint script can work with the data all I get is binding command.
What am I doing wrong? I really don't want to have to kludge around with some hidden field and then have to search through the grid to get at this data key. I need this key on the client side in order to provide additional details in my confirmation popup modal.
I have a repeater control populated with data binding expressions like in the expression below...
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I want to be able to redirect a user to default link if the LinkURL value is empty, that is for each data item, there will be a check if the LinkURL field contains a value. If not, a default value will be supplied.
when i am selecting an item in dropdown list datasource is bind and after another selection it is bind again .but i want it bind only once.
View 4 RepliesI ran into this kind of situation many times without a nice solution. Binding a data source to a gridview and one of the column require nested query. Is it possible to have a callback function other than Eval()?
something like CallbackFunc(Eval("SomeField"));
I have a Data Table which Populate from the Stored Procedure which is below
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and iam binding the Gridview with Data Table it is working .Now i have to make some thing visible and Invisible based upon some Value like below
Datatable dtTable = (Viewstate)["StatusData"]; // Same Data Table which is Data Source of Gridview Control
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Where Status.Open is an integer Enum value like Open = 1 and Close = 2 .row["Status"] is the Text Open and i want to compare with integer valueHow i compare the Values ? i have to use the same Data table or not?
with the code to present data in a gridview but without binding it to a database.
View 3 Repliesin other words, reading the content (records that lies within) of a LinqDataSource object programatically (i.e. similar to what the GridView class does internally when binding to a LinqDataSource object).
View 4 RepliesI have a grid which is binding to a objectdatasource and when it is in edit mode, i am displaying a form template and wanted to bind all the values. I have one field called ApprovedCode. In the edit mode, i am displaying all the codes drop down list box and making a bind on the selectedvalue and i dont know how to handle when it is empty. When it is empty i wanted to display "Select..."
I followed this forum post but i am getting error
[URL]
This is my code
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This is the error message that i am receiving
"ddlApprCode' has a selectedvalue which is invalid because it does not exist in the list of items
Is it possible to bind data wholly from client side in GridView using JavaSript and ASP.NET AJAX 3.5 ? I want to avoid using UpdatePanels.
View 1 RepliesI have a DataGrid bound to an ObjectDataSource, as you know once the DataSourceID on DataGrid is set, data binding happen automatically without any coding. But due to requests from end users, I need to prevent the data binding when the page is loaded the first time, i.e. data binding should only happen during PostBack. How do I do that?
View 3 RepliesWhen i bind gridview to stored procedure what i found it only shows data after enabling Autogeneratecolumns and it also doesnot show any column in boundedfield. Due to which i am unable to apply formating to individual column according to my requirement. One possible reason may be table is created in stored procedure due to which it generate fields at run time.
View 7 Replieswhat is the best way to bind a gridview with data from the database when the data is huge so that the application is fast?
View 5 RepliesI have seen several post on this but I cant seem to make any head way. I have a createUserWizard that creates a user and on my CompleteWizardStep I have a drop down that needs data bound to it. The error I am getting is 'Object reference not set to an instance of an object.' Null referenctException my code is:
Dim iSavesCounties As New dsISavesTableAdapters.tbl_countiesTableAdapter
Dim ddNewCounties As DropDownList
ddNewCounties = CType(CreateUserWizardStep1.ContentTemplateContainer.FindControl("ddCounties"), DropDownList)
ddNewCounties.DataSource = iSavesCounties.GetData()
ddNewCounties.DataTextField = "countyName"
ddNewCounties.DataValueField = "countyId"
ddNewCounties.DataBind()
Dim iSavesCounties As New dsISavesTableAdapters.tbl_countiesTableAdapter
I have a details view in asp.net which I am dynamically replacing some of the controls using code behind (e.g. converting some text boxes to dropdowns). My problem is that I am unsure how to bind these to the field from the database on postback. I.e. I am trying to find the code behind equivalent bind('currency');
I can populate the dropdown with the current value from the database but cannot find how to save a new value on updating the detailsview.
I am binding same data Table to Combo box and List Box on the WindowsForm Load.
When I select a value in Combo box automatically that value is also getting selected in List Box and same thing when I select a value in List Box that value is also getting selected in Combo Box.
Selection should be only for that particular control, how can I achieve this ?
I'm a bit of an ASP.NET newbie and I am creating a data table in memory and binding this to a gridview control. The code is as follows:
Dim DstBasket As New DataSet, TblBasket As New DataTable
With TblBasket
.Columns.Add("BskPrdCd", System.Type.GetType("System.String"))
.Columns.Add("BskPrdDesc", System.Type.GetType("System.String"))
.Columns.Add("BskQty", System.Type.GetType("System.Int16"))
.LoadDataRow(Split("12345,Test product 1,1", ","), True)
.LoadDataRow(Split("122,Test product 2,2", ","), True)
.LoadDataRow(Split("123A,Test product 3,5", ","), True)
.LoadDataRow(Split("44,Test product 4,1", ","), True)
End With
DstBasket.Tables.Add(TblBasket)
With LfnGridView("GdvBasket")
.DataSource = DstBasket
.DataBind()
End With
The data displays in the gridview control fine with both edit & delete options but when I attempt to delete, it has no effect. How do I force removal of the relevant row from both gridview and table? Most of the documentation I have unearthed shows how to achieve this when connected to a SQL table which is clearly not the case here.