C# - Converting A String To A Float Data Type?
Jul 1, 2010I need to convert the contents of a Textbox (which is currency) to a datatype float.
Would I convert to single?
txtPurchItemCorrectPrice.Text.Trim();
I need to convert the contents of a Textbox (which is currency) to a datatype float.
Would I convert to single?
txtPurchItemCorrectPrice.Text.Trim();
Here is the code:
[code]....
After I try to test the page, I am getting the following error:
System.Data.SqlClient.SqlException:
[b]Error converting data type nvarchar to float. [/b]
[code]....
I have a GridView. I am trying to make an Array or ArrayList of type structure. The vales that I want to make the ArrayList or Array (I don't know which one is more appropriate) from are points with latitude and longitude and are of type float. I have:
Point[] Array = new
Point[counter];
foreach (GridViewRow row
in GridView1.Rows)
{......
I want to change one of my table columns data type. Now the column data type is varchar and i want to change it to float. Updated all the column data to numeric and tried to convert the datatype with the following syntax
alter table vibration_values alter column dis_v float
but getting the error as
Error converting data type varchar to float.
The statement has been terminated.
Suprisingly every thing worked well in sqlserver 2005 and not working in sqlserver 2000.
I had a 14 digit create datetime and resolved datetime in float time format and I could parse the date using following conversion:
CONVERT(datetime, LEFT(CAST(CAST(is_resolved_datetime as BigInt) as varchar(14)),8)+' '+
SUBSTRING(CAST(CAST(is_resolved_datetime as BigInt) as varchar(14)),9,2)+':'+
SUBSTRING(CAST(CAST(is_resolved_datetime as BigInt) as varchar(14)),11,2)+':'+
SUBSTRING(CAST(CAST(is_resolved_datetime as BigInt) as varchar(14)),13,2))
If I were to extract only the time difference of two datetimes in hr:min:sec.
I am getting an error when attempting to call a stored proc from my asp.net page.
e.Message = "Conversion failed when converting character string to smalldatetime data type."
The stored proc is being called by:
The asp.net code that is calling the stored proc is:
[Code]....
I am getting an error when attempting to call a stored proc from my asp.net page.
e.Message = "Conversion failed when converting character string to smalldatetime data type."
The stored proc is being called by:
The asp.net code that is calling the stored proc is:
//Display search results in GridView;
SqlConnection con = new SqlConnection(strConn);
//string sqlItemSearch = "usp_Item_Search";
SqlCommand cmdItemSearch = new SqlCommand(sqlItemSearch, con);
[Code]....
I have a variable in the database "Amount". Data type is a float, but if I write 10.00, save 10 This is not good.
I want to save the database 10,00, and not 10.
I have a GridView with geography data in th cells. When iterating through the rows and creating a list and array, I have
GpsPoint[] GpsArray = new
GpsPoint[counter];
List<string> LineLista =
new List<string>();
foreach (GridViewRow row
in GridView1.Rows)
{
int i = 0;
GpsArray[i].Geolat = row.Cells[3];
GpsArray[i].Geolong = row.Cells[4];
LineLista.Add(row.Cells[2].Text);
i++;
}
and I got this:
Compiler Error Message: CS0029: Cannot implicitly convert type 'System.Web.UI.WebControls.TableCell' to 'float'
Source Error:
[Code]....
I have a FormView that allows a user to register for a company event. I want to do a couple of things with this form.
1. I need to write this data to a MS SQL database
2. I need to send an email confirmation of their registration to their email.
I know how to do both of these things, but i am having trouble doing both at the same time.
It would be nice if I could do it in one click, but I coded it into two pages to try to help simplify it.
The first page allows the user to input their information into a formview and when they click the submit button, it places those answers into session variables:
[Code]....
[Code]....
The Second page confirms the users information by taking those session variables and placing them into labels:
[Code]....
[Code]....
However, after I place information into the formview on the first page, it throws up this error:
"Conversion from type 'TextBox' to type 'String' is not valid".
I have this error "The given value of type String from the data source cannot be converted to type datetime of the specified target column." when I used sqlbulkcopy to do the transaction
Here is my code:
[code]....
I have a gridview which I'm trying to get the display of phonenumbers listed in a certain display format; (xxx) xxx-xxxx.If I have the code such as this, it displays the unformatted phone number and (000) 000-0000 for the null items.
[Code]....
<Conversion failed when converting the varchar value 'ID' to data type int.>am trying to insert datavalueField for a drop down list into a table column, its type is int. am using this syntax
[Code]....
I have 1,2,3,4,5,6,7,8,9 stored as nvarchar inside Level in my db.
I then have a dropdownlist with values 1,2,3,4,5,6,7,8,9. When a user makes a selection (i.e 1) (Level.SelectedValue.ToString). This builds an sql query via a param like this:
"Select things From MBA_EOI Where level = 1"
When I run the select I get the following error:
Syntax error converting the nvarchar value '1,2,3,4,5,6,7,8,9' to a column of data type int.
I was under the impression that I was dealing with an Nvarchar field and the selected value as string, where does the int conversion come in?
p.s I have also tried Level.SelectedItem.ToString
when i am trying to uedit my recods in gridview this error is coming. I am using SQLDatasource with gridview and for edit purpose i am using stored procedure. I have manually executed the SP and its woring fine. my SP is here
[Code]....
and my SQLDataSource is here
[Code]....
and gridview is here
[Code]....
I have a table for R&D which has following cols:
EmpID|EmpName|EmpLname|
and i want to insert values using parameters from Stored procedure as:
declare @EMPID int;
declare @EmpName varchar(50);
Declare @EmpLname varchar(50);
Declare @aa varchar(max);
[code]...
once executing, I am getting following error: Conversion failed when converting the varchar value 'insert into Employee(EMPID,EMPNAME,EMPLname) select ' to data type int.
i am getting this error this my c# code
Collapse | Copy Code
string Patient_name = NameTxtBx.Text, Export_TO = ToTxtBx0.Text;
int PatNoVal;
PatNoVal = Convert.ToInt32(PatNo.Text);
PatNoVal = int.Parse(PatNo.Text);
decimal PatID = decimal.Parse(PatID_NO.Text);
[Code] .....
how can in sql server show two columns as one column.. one of them is nvarchar and the other is int from two tables i have did this but it give error
select depart.depart_name+input_comp.no_of_depart as department,dbo.depart.depart_id from dbo.depart inner join dbo.input_comp on dbo.depart.depart_id=dbo.input_comp.depart_id group by depart.depart_name,dbo.depart.depart_id,input_comp.no_of_depart
the depart_name is nvarchar datatypeand the no_of_depart is int datatype
the error is
Conversion failed when converting the nvarchar value to data type int.
I'm trying to pass email addresses from an array to a stored procedure, then display the results in my gridview. I get the following error:No mapping exists from object type System.String[] to a known managed provider native type.On this line: Dim DR As SqlDataReader = MyCommand.ExecuteReader
[Code]....
I'm getting the following error base on dropdownlist selectindexchanged: error converting data type nvarchar to bigint
Below is my dropdownlist code:
Protected Sub ddlTaxName_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlTaxName.SelectedIndexChanged
Dim strConnString As String = ConfigurationManager.ConnectionStrings("BytConnectionString").ConnectionString()
Dim strQuery As String = "select TaxName, [Rate(%)] from Sale_Tax where" & " TaxID = @TaxID"
Dim con As New SqlConnection(strConnString)
[Code] .....
protected void Update(object sender, EventArgs e)
{
foreach (GridViewRow row in gvStudeff.Rows)
{
[Code].....
i am binding the datalist using this code and store procedure. the code works fine if i pass only 1 id, but i have an array which have multiple id's separated by comma like 1,3,5, and i want to use this in the @Id parameter , but i get below conversion error: An exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll but was not handled in user code Additional information: Conversion failed when converting the varchar value '1, 3, 4, 5, 6, 7' to data type int. Code behind code is:
private void PageBind(Int32 pno) {
Int32 nor, repcol;
nor = Convert.ToInt32(DropDownList1.SelectedValue);
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "Display_Search_Records";
[Code] ....
I am using a viewstate to store the company Ids and splitting at hyphen.
protected void onCompanychange(object sender, EventArgs e) {
ViewState["companyID"] += companydropdown.SelectedValue + "-";
String companyids = ViewState["companyID"].ToString();
string pattern = "-";
company_array = Regex.Split(companyids, pattern);
company_length = company_array.Length;
}
Company array is a string array where i have stored the company ids
the problem is company_array[0] has the initial value of the dropdownlist(company) --select company which is why m getting the error(cannot convert data type nvarchar to int) . I have used the same logic in many places in my project it did not give any error.
int count = 0;
company_length = company_length - 1;
while (count < GridView3.Rows.Count && compid_counter < company_length ) {
cmd = new SqlCommand("insertWorkDetais", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@trainerId",trainerID);
[Code] .....
I am using the abobe code to encrypt and decrypt a query string ID number.Any ideas to how to make this work with id numbers?Bellow is the code and store procdure.
[Code]....
This is the code i have used to get LocationID from database with MerchantID. I am getting an exception from Fill dataset part. The error is Error converting data type varchar to bigint.
public DataSet getLocationID(long MerchantID)
{
//long LOCID = null;
try
{
SqlParameter[] parameters = new SqlParameter[]
{
new SqlParameter("@merchantID",MerchantID)
};
string strCommandText = "Select LocationID from Merchant_Location where MerchantID ='@merchantID' order by LocationID ASC";
Debug.WriteLine(strCommandText);
DataSet pds = new DataSet();
SqlHelper.FillDataset(DbConnString, System.Data.CommandType.Text, strCommandText, pds, new string[] { "LocID" }, parameters);
return pds;
}
catch (Exception ex)
{
//LogError("Error Occurred When Retrieving LocationID: " + MerchantID.ToString(), ex);
return null;
}
}