Oracle 9i has not BOOLEAN data type. CheckBoxes in ASP.NET are BOOLEAN controls are they not?
So using a CHAR(1) column with Y or N values in the Oracle table, how do I bind to a CheckBox or CheckBoxList or RadioButton or RadioButtonList control on an ASP.NET 2.0 web form?
I'm using VB, 'specially since I'm a noobie.
I would set the value to 1 or 0 and have an int datatype
Related
in my project I need to copy all the rows of GridView into a DataTable. Can any one tell this can be done in C# ASP.NET
You can use its DataSource property
DataTable myDataTable = myGridView.DataSource as DataTable;
When I connect some data source to checkboxlist I can define attributes:
DataTextField="column1" DataValueField="column2"
Then I can use in cs file .Text and .Value Properties respectively.
Columns 1 and 2 are taken from some sql select instruction.
Is there any way to store more than that 2 columns from database.
Something like CustomDataField="column3" ?
Thanks
As per the builtin properies of DropDownList there is no way to store more than 2 columns from database.The properties like DataTextField,DataValueField of DDl are defined in ListControl class of System.Web.dll.
My Asp.net page has multiple textboxes and DropDownLists that populate from a selection in the Gridview. My problem is multiple, I have a keyfield in the gridview that is a uniqueidentifier used to insert, update, and delete records from my database. I do not want theis column to be seen, I have used a css
.hideCol
{
display: none;
}
But it isn't working, I also tried setting Visible = "False" and it will not populate the textboxes. I need to find out how to hide that column so the user doesn't see it.
My new problem is my DropDownLists consist of a sql query from one table and concatenating multiple columns.
SELECT [Column1] + ' | ' + [Column2]
FROM [Table1]
ORDER BY [Column2]
So my result looks like this is the DropDown:
123456 | Name
When I try and populate my DropDownLists and Textboxes from the selected row of my gridview I get an error on the DropDownList because it is not recognized as a value.
123456 is what is in the database I need it to populate based on those numbers but display in the format above? Does this make sense? any suggestions?
UPDATE:
AllowPaging="True" CellPadding="4" CssClass="td3" ForeColor="#333333">
I have an ASP.NET 3.5 web form with a DropDownList bound to a table of company names in a database. I also have a data bound GridView which I would like to update with data from the database depending on the company name selected in the DropDownList, so that the SelectCommand for the GridView's SqlDataSource is:
SELECT Registration, Telephone, Profile FROM {CompanyName}_VehicleData
Where {CompanyName} is whatever is selected in the DropDownList. I've used the Command and Parameter Editor to create a ControlParameter pointing to the SelectedValue of the DropDownList, but I don't know how to write the SelectCommand query to concatenate the parameter to '_VehicleData'. Any thoughts.
If you are using a sqldatasource you could set the select command in the code behind.
<sqldatasource>.SelectCommand = "select registration, telephone, profile " & _
"from " & <dropdown>.selectedvalue & "_VehicleData"
<sqldatasource>.SelectType = SqlDataSourceCommandType.Text
#Colin: You said that the solution is writing a stored procedure that evaluates whether the concatenated value (DropDown.SelectedValue + "_VehicleData") maps to a real table using the INFORMATION_SCHEMA.TABLES view before injecting it into a SQL command. Can you please give a code snippet for the stored proc?
With a gridview control bound to a sql data source, i want to display a column named ID. The ID should display the row number for each row. How would I go about binding this to rowindex instead of the ID column from the database?
For that I would use the ROW_NUMBER() function which is new in SQL Server 2005.
This function returns rownumber in the recordset that is being returned.
There is an excellent post by ScottGu.
HTH,
Valve.