DataSource Controls :: How To Tell A SQLParameter Value To Use The Default Value
Jun 23, 2010
I have a <asp:Parameter Name="Person_ID" Type="String" />. My Updatecommand contains, among other things: Person_ID = @Person_ID. That's all fine.
In my code behind, how to I say that I don't want to specify a value for this parameter, but rather want it to use the default value (which in this case is NULL?)
Or rather than telling it to use the Default value, is it possible to set it to Null? I tried setting the value to Null, but the sql code that got generated was Person_ID = "NULL", which of course, is wrong. How do I get it to generate Person_ID=NULL?
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Apr 17, 2010
If Request.QueryString("departmentId").ToString() = "0" Then
SqlDataSource1.SelectParameters.Add("departmentId", TypeCode.Int32, 0.ToString())
I want to add a null value instead of 0.string() for the sqlparameter departmentId how do I do this?
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Apr 5, 2010
Protected Sub FormView1_ItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewUpdateEventArgs) Handles FormView1.ItemUpdating
Dim IsPresCheck As CheckBox = CType(FormView1.FindControl("IsPrestigeChkBx"), CheckBox)
If IsPresCheck.Checked = "True" Then
SqlDataSource1.SelectParameters.Add("IsPrestige", System.TypeCode.Int32, 1.ToString)
Else
SqlDataSource1.SelectParameters.Add("IsPrestige", System.TypeCode.Int32, 0.ToString)
End If
but for some reason it's not seeing the parameter and returning an error
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Apr 17, 2010
I want to check if an sqlparameter exists before adding a new one so I don't get the error - @param was supplied multiple times. IS this possible?
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May 2, 2010
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Jun 30, 2010
I am about to write a method that uses SQLParameter to insert some data into SQL server. However, do I "have" to specify a DBType? If not how is this handled?
Here is an example of the code I intend to write:
[Code]....
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Jun 30, 2010
I am trying to display a profile page on my website using the SQL Datasource_Selecting and when the page loads I get this error "An SqlParameter with ParameterName '@UserName' is not contained by this SqlParameterCollection."
The code is:
[Code]....
and the sql code is:
[Code]....
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Jan 4, 2011
Some of you might know that I am currently working on a simple blog (thread with full details here). There is a slight problem however ! After achieving the post filtering, the blog doesn't show any posts, unless; I click on of the categories. I was hoping that the blog would show ALL posts at first, and THEN if a user clicks a Category, the filtering would occur. So I went over the code again, and there was this:
[Code]....
The DefaultValue="0" caught my eye, so I changed the number to "1" and I got all the posts in the [ General ] category, I tried "2" and I got the posts from the [ Programming ] category ..etc So I was thinking how I'd go about solving this problem, because (initially) I want the posts from ALL categories to show. Is it possible to add more than one defaultValue ? for example: DefaultValue = "1,2,3"
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Jul 4, 2010
is it possible to change the default date values accepted by sql server to dd,mm,yyyy instead of the default mm,dd,yyyy?
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Jun 18, 2010
I've created a table with a userId column of type uniqueidentifier, and have set that column as the primary key. In the column properties, under the Default Value or Binding, I've put (newid()). I thought that this would create a new uniqueidentifier if no value is specified in the insert statement.
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Nov 5, 2010
I am using SqlDataSource control that retrieves information based on a city value from another control (textbox) on the page entered by the user.
[Code]....
The query works fine when the user enters a name of a city. However, if I leave the textbox blank and enter nothing, no records are returned by the query.I need all records to be returned when user leave the textbox blank and there is no value of the city.How to do that?is there a default value can do that?
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Sep 23, 2010
I'm trying to pass default value to a sql parameter which is
[Code]....
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Apr 17, 2010
When I opened sql server configuration manager I am not able to see default databases like master etc. Does anybody know the reason? Did I miss any installation?
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Apr 19, 2010
I'm trying to execute a simple insert statement with the GUID and timestamp populated by default from the server. I have both of their default values set as (newid()) and (getutcdate()) respectively in SQL server. However, I receive the error when I try and execute the command "Insert Error: column name or number of supplied values does not match table definition". How do I construct my sql insert so my id and timestamp columns use their default values as assigned in sql server?
[Code]....
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Sep 2, 2010
I am using the query listed below which includes multiple joins, in the result of the query I need to do some value replacement valuesExample: db.ASSETS.BUILDING_ID=300 that ID does not exist in db.BUILDINGS, in that case I need to return BUILDING_ID=0, db.BUILDINGS.NAME="Unassigned"
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Apr 18, 2010
I have a web project with more than 100 input boxes , so in every INSERT and UPDATE to sql server in front of sql statement I must put the golden N word, so it will be in UNICODE mode. Do we have some alternative of this? How can i make it in EVERY UPDATE and INSERT to sql server in data layer level- make it like u insert UNICODE (without N word) How can you get MSSQL server to accept Unicode data by default into a VARCHAR or NVARCHAR column?
I know that you can do it by placing a N in front of the string to be placed in the field but to by quite honest this seems a bit archaic in 2008 and particuarily with using SQL Server 2005. Example:
cmd = New SqlCommand(sql, ConnectionFromEnum(whichDatabase))
cmd.Connection.Open()
i = cmd.ExecuteNonQuery()
so....
the question is : Am I suppose to make something with SQLCOMMAND to set- "enter evthng like it is UNICODE, with N auto"? or i must specify UNICODE by default in somewhere else? just to indicate that i already set in web.config
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So global questions HOW TO MAKE INSERT AND UPDATE Unicode by default in every insert and update methods, without placing N word in front of literal string?
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Apr 23, 2010
I have a Dynamic Data Website that I created after watching the video tutorials on this website (I'm new to programming, but not computers).I have a SQL Table named 'Adult' that has a 'DOB' column. I would like to add an asp:label to the Default.aspx that does a LINQ to SQL query to determine if it's someones birthday today and if so display their name and age.
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Feb 13, 2010
I am using DAAB with stored procedures. I use stored procedures more then once if possible. If I add a parameter later in stored procedure, I have to supply value for this in functions where it is even not being used as well, other wise it shows an error that number of parameters are not same. if I add parameter in last of parameter list in stored procedure and set a default value for it and I may have not to provide value for this from functions where I am not using it.
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Dec 13, 2010
I have a DataSet with multiple DataTables and I use an ObjectDataDataSource to bind my DataGrid to it. One of my tables is correctly displayed in the grid. My problem is, that the grid displays the wrong table.
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[Code]....
How can I configure the DataSet to display the table "Variables" by default?
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Oct 5, 2010
How do we get Text as a member of 'System.Data.SqlClient.SqlParameter'
See example of 'System.Data.SqlClient.SqlParameter', below:
[Code]....
Here is the snippet code to insert the Text as a member of 'System.Data.SqlClient.SqlParameter'
[Code]....
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Oct 14, 2010
I am an ASP beginner, I have a stored precodure which accepts two input parameters. In my ASP project, I have a button click event
protected void OnAddClick(object sender, EventArgs e)
{
string concept = txtConcept.Text;
string keyword = txtKeyword.Text;
.......
int result = Helper.ConceptInsert(concept,keyword);
}
In my Helper.cs, I have a method as
public static int ConceptInsert(string description, string keyword)
{
int result = -1;
string connString = ConfigurationManager.ConnectionStrings["MySpaceConnectionString"].ConnectionString;
string commString = "exec dbo.Concept_Insert @description";
using (SqlConnection conn = new SqlConnection(connString))
{
using (SqlCommand comm = new SqlCommand(commString, conn))
{
comm.Parameters.Add(new SqlParameter("@description", description));
comm.Parameters.Add(new SqlParameter("@keyword", keyword));
conn.Open();
result = comm.ExecuteNonQuery();
}
}
return result;
}
But when I run the code, error message is always Procedure or function 'Concept_Insert' expects parameter '@keyword', which was not supplied. How can I pass those two parameters together to the stored procedure?
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Jan 29, 2010
I am using forms authentication and authorization through roleManager. I have two Roles - "Customers" and "Employees". The redirection to the default page for the "Customers" role is working fine, but I get an oledb error stating that one or more parameters are not being passed when I redirect a user from the "Employees" role. The following is the code in login.aspx that handles the authentication of the user:
If myReader.Read() Then ' We have a match
If myReader(1) Then ' This is true if an Employee and false otherwise
If Not Roles.IsUserInRole(logInUser.UserName, "Employees") Then
Roles.AddUserToRole(logInUser.UserName, "Employees")
End If
ElseIf Not Roles.IsUserInRole(logInUser.UserName, "Customers") Then
Roles.AddUserToRole(logInUser.UserName, "Customers")
End If
FormsAuthentication.RedirectFromLoginPage(logInUser.UserName, logInUser.RememberMeSet)
Else
Response.Write("Invalid credentials")
End If............................................
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Sep 29, 2012
I am trying to follow this sample of inserting data through gridview rowcommand. But somehow Im missing the sqlparameter add method whilst the namespace was already added.
Code:
//sqlparameter declaration of list type
private List<SqlParameter> insertParameters = new List<SqlParameter>();
mygridview_rowcommand(...){
SqlParameter _prm_guid = new SqlParameter("@pk_guid", SqlDbType.VarChar);
_prm_guid.Direction = ParameterDirection.Input;
_prm_guid.Value = thisguid;
insertParameters.add(?); //error on add()
}
Some other part of the code which related to insertParameters variable it give an error
Code:
for statement cannot operate on variables of type List<System.Data.SqlClient.SqlParameter> because List<System.Data.SqlClient.SqlParameter> does not contain a public definition of GetEnumerator
Am I missing a file reference?
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Aug 28, 2013
how to set sqlparameter list(of sqlparameter ) to a gridview??
Code:
Dim l As New List(Of System.Data.SqlClient.SqlParameter)
l.Add(New System.Data.SqlClient.SqlParameter("@name", "joy"))
l.Add(New System.Data.SqlClient.SqlParameter("@class", "neel"))
grd1.DataSource = l.ToList
grd1.DataBind()
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Mar 10, 2014
I have been getting this error for a long time now.
SqlParameter outparm2 = new SqlParameter("@OrderID", SqlDbType.Int);
outparm2.Direction = ParameterDirection.Output;
while (count < GridView1.Rows.Count)
{
cmd = new SqlCommand("Insert_Orders", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(outparm2);
[code].....
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