C# - Get Values From String?
Oct 30, 2010How to get the error number and error description from this string
s = "ERR: 100, out of credit";
error should equal "100"
error description should equal "out of credit"
How to get the error number and error description from this string
s = "ERR: 100, out of credit";
error should equal "100"
error description should equal "out of credit"
I am using Asp.net 3.5 listview control. In item_updating event I am using this code...
dim country as string = Dim country As String = e.NewValues("country_name").ToString.Replace(" ", "")
It's updating record correctly. for example if I update USA to USA 1 1 then it's updating like as it. But I want it to be USA11
I want to split a string that taking both string and integer values like (Cmp_12). I want to use them in Separately.
View 4 RepliesI have a SQL query I'm running in an ASP.NET page. The final parsed SQL needs to contain a list of string values in the WHERE [columnname] IN [values] format. For example, the final query might look something like this:
SELECT PRODUCTNAME FROM PRODUCT WHERE PRODUCTCODE IN ('ABC','DEF','GHI','JKL', /* etc */);
However, the string values in the WHERE clause need to be dynamic. Normally I use parametrized queries to make my code convenient and safe, so conceptually I'd like to do something like this:
String[] productCodes = { "ABC", "DEF", "GHI", "JKL" };
SqlCommand cmd = "SELECT PRODUCTNAME FROM PRODUCT WHERE PRODUCTCODE IN (@ProductCodes)";
cmd.Parameters.Add("@ProductCodes", productCodes);
However, this sort of functionality doesn't appear to exist in .NET. How should I go about implementing this? I could use a foreach loop on the array and run a query with a single value as a parameter for each value, but there could potentially be a hundred or so different values in the array and it seems like querying them separately would be very inefficient.
I've read another question where someone suggested a solution for strongly-typed int parameters, but that method would make me nervous about SQL injection when used with String values, especially since the client may very well be able to influence the input values.
How would you implement this query functionality?
EDIT with DB Details:
The database is SQL Server 2005.
i have added one textbox as a template in my gridview.i want to get the values of textbox to a string when i enter values to the textbox.
View 1 RepliesI have a string that contains comma separated values that I want to get into a DropDownList on a View.
Expample:
"Valve, Body, Handle, Cover, None" I'd like each value in that string to appear as a selection choice in a DropDownList, with the KeyValue 1, 2, 3, 4, 5 etc (corresponding the the index location within the string.
Valve = 1
Body = 2
Handle=3
Cover = 4
None = 5
i have a string of format ( 3.7 cm - 5.4 cm ) now i want to get the to numbers in the string into two variables for comparision
View 8 Repliesi have a sql connection string being stored in the web.config.
how can i pull items liek server name, username, password... insode of c# asp.net code?
I am developing a Webpage that gives the user selection criterial before running a report. There is a asp.net ListBox that I need to get the selected values from. It is obviously a multi select listbox.
I need to pass the selected values as a comma separated string to a parameter used in an SQL query of the ObjectDataSource for the report. I was hoping some how to get the selected items, and load their value into a string array and then use the join( stringArray , "," ) to get the selected values into a string to send as a parameter to my objectdatasource but I cant seem to figure this out.. Ideally if code worked my way I would want to do something like this: Declare StringArray for each selected item in Mylistbox Add selected value to StringArray Set parameter = join( StringArray , "," ) Obviously this is what I need syntax for.. I pretty much just need to know how to get a string array or all selected values.
I am trying to set up a page that has two behaviors. I'm seperating them by URL: One behavior is accessed via /some-controller/some-action, the other is via /some-controller/some-action?customize. It doesn't look like the Request.QueryString object contains anything, though, when I visit the second URL...I mean, the keys collection has one element in it, but it's null, not 'customize'. Anyone have any ideas about this or how to enable this. I'd like to avoid manually parsing the query string at all costs :).
View 2 Replies For some time I have been desperately meddling with an Autocompleted textbox. After trying several snippets found around, I now have something that works in my solution.
A function, LoadData returns a list of streetnames, used to feed the autocompleted textbox. It works perfectly when using a teststring (see code below)
My problem is now to somehow read all the values in the field 'Gade' from the database and whip them into a string, seperated by spaces. I have been fiddling with datareaders and some more or less optimistic stuff, but not found anything that works Its probably quite simple but I am totally stuck.
[Code]....
how can i dissect or retrieve string values
Here's the sample code that im working on now
private void SplitStrings()
{
List<string> listvalues = new List<string>();
listvalues = (List<string>)Session["mylist"];[code]....
now that i'am able to retrieve List values in my session, how can i separately get the values of each list using foreach or for statement? what i want to happen is to programmatically split the values of the strings depending on how many is in the list.
My code for splitting the strings is working however, i still need to use the splitted string my page. How can i achieve this? Here's my current code
private void SplitStrings()
{
List<string> listvalues = new List<string>();
listvalues = (List<string>)Session["mylist"];[code].....
how can i replace the response.write with any label or literal? when i tried to use a literal on the code it displays one single string not all of the strings that's been splitted.
I have a Sql string something like this.string sqlstring = "Select field1, field2 from table1 where field1 = 1 and field2 = 'xxx' group by field1, field2 order by field1 asc" Question: During runtime, based on the user selection, I have to replace 1 and xxx in the sql string.What is the best way to do this?
View 3 Repliesi have two tables which are related (school and departments). school_table (school_id, school_name) and department (dept_id, dept_name, school_id). page 1 creates the school - i take school name via textbox and school_id is auto generated in database. so informatics = 1, science = 2, etc page2 creates department - i take department name via textbox, dept_id is auto generated, and now i need a way to take school_id from this page to create the relationships (so we know which department belongs to which school). however, i don't really want the user to enter school Id that gets auto generated in the schools_table, instead i want to create a drop down list and populate it with the school_name values taken from page one. but these drop down values should represent an int value behind the scene since it needs to go to school_id (department_table) but how can i convert the drop down values from string to int so that if i enter informatics from drop down the value will be 1 in the school_id column?
View 2 Repliescompare Array Values with String?
[Code]....
I'm just stumped on what to do with this code, I'm just trying to implement a 'no duplicates' catch on my insert customer form, but it just slips through my if statement to the else everytime. This is the source. Also I tried a .Equals with the same results :(
Protected Sub srcAllClients_Inserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Handles srcAllClients.Inserting
'Establish Variables
Dim emailAddress As String
Dim srcUsers As SqlDataSource = New SqlDataSource()
srcUsers.ConnectionString = ConfigurationManager.ConnectionStrings("ISSD21ConnectionString").ConnectionString
Dim view As DataView
view = DirectCast(srcUsers.Select(DataSourceSelectArguments.Empty), DataView)
srcUsers.SelectCommand = "SELECT EmailAddress FROM ISSDClients"
srcUsers.DataSourceMode = SqlDataSourceMode.DataReader
Dim reader As IDataReader
reader = DirectCast(srcUsers.Select(DataSourceSelectArguments.Empty), IDataReader)
emailAddress = FormView1.FindControl("txtEmail").ToString
While reader.Read()
If reader("EmailAddress") = (emailAddress) Then
lblError.Text = "Your Email is NOT Unique!"
'this is where we cancel the update and return an error
Else
lblError.Text = "Your Email is Unique!"
'nothing needs to happen, maybe just tell them that it went through
End If
End While
reader.Close()
End Sub
if i have url in string format like
"redirect.aspx?id=1 &name=n1 &add=abc"
is there sum in built function in asp.net to retrieve querystring values from this considering this as url.
how to pass more than one value in query string??
Response.Redirect("wardno180.aspx?ab=" + TextBox3.Text);
i want to pass the value of one more text box in this query string
what changes should i make??
I am passing on a public String from C# to JavaScript that looks like this:
"AaSP1,,,,,,,,,"
My task is to extract the 2 first values from this commaDelimited String where the First is "AaSP1" and the second is ""
But the problem as seen in the code is that the variable: two == "AaSP1," wich I dont understand why it can be ? That statement executes in this case.
Shouldn´t two be an empty string ?
[Code]....
i dont understand where is the problem with my code. i need to pass the request_id to another page but it is always passing the integer values as 0. whenever it comes to pass integer values it is passing it as 0 even if i perform conversion of string to int.
[Code]....
I have a textbox AND 3 checkboxes; checkbox1, checkbox2, checkbox3
In textbox we have 1,2,3
If I type in textbox1 = 1,2 then
checkbox1 and checkbox2 will be checked and checkbox3 will remain unchecked.....
How to do this in vb.net
I'm using parameterized sql query to get data from database
string query = "Select * from employee where employee_city in (@value)";
strign city ="'NewDelhi','Bangalore','Mumbai'";
I'm using following code to achive this
[code]...
But this is not giving the result. If run the query in SQLServer query window as "Select * from employee where employee_city in ('NewDelhi','Bangalore','Mumbai')", records are there.
But the same query will not return any records from ADO.Net.
For coonverting Linq to DataTable I am using the following Extension Method(Taken from Stackoverflow)
L[code]....
The Extension Method creates XML file.But for null values no element is created in XML file.Say if Commission field is null then commission element is missing in Xml generation.
I want to insert element with empty string for null values (ref type) and (0.00) for decimals and (0) for integers. where do i need to make change?
I have a page that lists products from a table based on the querystring. So if I say foo.aspx?fam=1 all the products from family 1 will be listed. How can I make my code list all the values if query string is empty? My SQL command would have to be different...can't really see how I can do this.
<asp:SqlDataSource ID="ds_produtos" runat="server"
ConnectionString="<%$ ConnectionStrings:LocalSqlServer2 %>"
SelectCommand="SELECT DISTINCT [IdProduct], [Name], [Description], [IdFamily], [Price], [Stock] FROM [Product] WHERE ([IdFamily] = @IdFamily )">
<SelectParameters>
<asp:QueryStringParameter Name="IdFamily" QueryStringField="fam" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>