What Is Difference Between Two Data Types String
Dec 25, 2010Both of these used same function. So why these two have been provided?
Secondly Why there is Not a constructor like:
String abc=new String("Hello");
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VS 2008 Difference Between Double And Decimal Data Types?
Nov 3, 2010The biggest difference between double and decimal is that double is a floating point variable type whereas decimal is a fixed point variable .What it means?? Please Explain the abovePoint with Example.According to me both are used to store the folating numbers,then whats the difference between two?
View 1 RepliesIs String Or Other Data Types A Class?
May 11, 2010I am confused that predefined datatypes like String,Integer Int32 etc. are Class or something else? Since there symbols that appears through intellicence are different than other classes. The predefined datatypes have different Symbols than Classes. What could have been written inside those datatypes?
View 14 RepliesConfiguration :: Difference In The Different Types Of Installers?
Jun 4, 2010Can i get the following into one installer ?
I have to install 3 web apps. can this be done in one installer ? or can i have a bunck of linked installers ? is that possible ?
UDL files - they are saved as text ? so i can i edit them with a custom dialogbox ?
I need to search database add database.
update table,row
after the 3 web apps are installed.
i also have to install VLC for my steaming sofrware to work. can i make the one installer stop and install this at some point ?
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whats the difference in the different types of installers ?
SQL Server :: For A Full Text Index, What Is The Difference In These Types Of Population Schedules?
Oct 11, 2010I am using SQL2008 and created a full-text index on 1 of my tables. Going through the wizard, I was offered (2) types of population schedules as follows:New Table Schedule: Define a population schedule for a table.New Catalog Schedule: Define a population schedule for a full-text catalog.I am familiar with a 'Catalog' schedule for population which I do nightly and was similar to configuration on SQL2000 for a full text index. However, what is the difference for a 'Table' schedule vs the 'Catalog' population schedule? I have the definitions above, but if someone with knowledge could offer a better in depth explanation in comparison, and if I should use both or not (I have just a Catalog population scheduled currently),
View 1 RepliesWhat Is The Difference Between String (S Capital) And String (s Small)
Jan 4, 2011What is the difference between
String (S capital)
and
string (s small)
Where to use String and where string?
Architecture :: Method Return Types Object Vs String/bool
May 27, 2010If I'm returning an object, then it's pretty straight-forward. However, if I'm just trying to return whether or not the method was successful or not, what's the best option? Sure ... bool seems obvious - but what if you need to debug or get some additional details out of the method than just "yes/no"? Well that's where a string becomes more obvious, right? You can leave it empty to say that the method was successful or chock it full of details in the case of an error. But this can make it less intuitive to others who may have to run your functions and it also jumbles up everything you wanted to pass back into one large string.
View 3 RepliesArchitecture :: Class Design - Application Allows Admins To Add Types Such As Document Types?
Oct 12, 2010 I have an application that allows admins to add types such as document types and training types that are in seperate tables with a foreign key in a transaction table.
When structuring my class I decided to go with an abstract-like pattern (without the factory methods though). So I have a Type abstract class that defines my Save, Delete, and GetList methods. I have a training type class that inherits this class. The thing is all types have 3 main properties - defined in the abstract base - but have different source tables and thus different store procedures in my DbCommand object. So basically I repeat setting up the same parameters on all the derived classes. I would like to implement the common stuff in the base but I am getting thrown off by the difference in data sources.
C# - What Is The Difference Between Xxx.tostring() And (string)xxx
Jan 24, 2011whats the difference in the two string methods below?
string str1 = dr["RAGStatusCID"].ToString();
string str2 = (string)dr["Description"];
Finding Types Of Websites And Types Of Categories
Mar 1, 2011i Dont know how many types of asp.net websites.
ie. asp.net webiste types of categories.
Give me the deatiled Information.
Web Forms :: Difference Between .ToString And Convert.To String?
Dec 10, 2010I want to Know What is the difference between .ToString and Convert.To string?
View 4 RepliesForms Data Controls :: Validating TextBox Data Against Multiple Types Of Data
Dec 22, 2010I m Using a GridView: Columns: "Ser_type" tells what type of data is it i.e. VC for Varchar, NU for Numeric, DT for DateTime etc, for the time being i m using datavalidation controlls at design time. this is not a good approach. I just wan to do is that, DataValidationControlls should be created at RunTime and TextBox should validate data at runtime only. i.e. if Data required in the TextBox is of Type VC then it should validate only at runtime, if DT then validate DateTime only at Runtime similarly for all dataType:
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" >
</asp:ScriptManager>
<div>
<div>
<asp:Panel ID="Panel1" runat="server" Height="150px" Style="left: 0px; position: relative;
top: 0px" Width="970px">
<asp:Image ID="Image1" runat="server" ImageUrl="~/Images/Home.jpg" Style="position: relative" /></asp:Panel>
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<asp:Panel ID="Panel2" runat="server" BackColor="PaleTurquoise" Height="350px" Style="left: 0px;
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<asp:Label ID="lbl_Home" runat="server" Font-Bold="True" Font-Size="XX-Large" ForeColor="#404040"
Style="position: relative" Text="Welcome to AutoSoft Dynamics" Width="700px"></asp:Label> <br />
<table style="left: 0px; position: relative; top: 0px">
<tr>
<td colspan="2" style="height: 21px">
<asp:Label ID="lbl_messege" runat="server" Style="position: relative" Font-Bold="True" Font-Size="16pt" ForeColor="#0000C0" Width="100%"></asp:Label></td>
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<tr>
<td colspan="2">
<asp:Label ID="lblExpMessage" runat="server" Style="position: relative" Width="100%" Font-Bold="False" Font-Size="12pt" ForeColor="Red"></asp:Label></td>
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<td style="width: 464px">
<asp:Button ID="Button1" runat="server" Style="position: relative" Text="Button" />
<asp:Button ID="Button2" runat="server" PostBackUrl="~/EmpDetails.aspx" Style="position: relative"
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<td style="width: 162px">
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</asp:Panel>
<asp:Panel ID="Panel3" runat="server" BackImageUrl="~/Images/Footer.bmp" Height="50px"
Style="left: 0px; position: relative; top: 0px" Width="970px">
</asp:Panel>
<br />
<cc1:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
BackgroundCssClass="modalBackground"
PopupControlID="Panel_Popup"
CancelControlID="btnRemindLater"
TargetControlID="Button1" >
</cc1:ModalPopupExtender>
<asp:Panel ID="Panel_Popup" runat="server" Width="540px" HorizontalAlign="Center" >
<br />
<table width="100%" style="left: 0px; position: relative; top: 0px; background-color: inactivecaptiontext">
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<td colspan="4">
<asp:Label ID="lbl_Title" runat="server" BackColor="Desktop" Font-Bold="True" ForeColor="White"
Height="28px" Style="font-weight: bold; font-size: 15pt; vertical-align: middle;
position: relative; text-align: center" Width="100%"></asp:Label></td>
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<tr>
<td style="width: 11px">
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<td style="width: 583px">
<asp:GridView ID="GridView_Popup" runat="Server" AutoGenerateColumns="False" BorderColor="Navy"
BorderStyle="Solid" BorderWidth="2px" CellPadding="3" DataKeyNames="ser_no" EmptyDataText="No recored found"
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OnRowDataBound="GridView_Popup_RowDataBound" Style="position: relative">
<EmptyDataRowStyle BorderColor="Navy" BorderWidth="2px" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lbl_ser_no" runat="server" Font-Size="1pt"
Text='<%# Bind("ser_no") %>' ForeColor="ActiveCaptionText" >
</asp:Label>
</ItemTemplate>
<HeaderStyle BackColor="GradientInactiveCaption" />
<ItemStyle HorizontalAlign="Left" Width="5px" ForeColor="ActiveCaptionText" />
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<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:Label ID="lbl_description" runat="server" Font-Size="Small" Text='<%# Bind("description") %>'
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<asp:TextBox ID="txt_DeclaredValue" runat="server" CausesValidation="True" Font-Size="Small"
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<HeaderStyle BackColor="GradientInactiveCaption" Font-Bold="True" Font-Size="Small"
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<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="205px" />
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<asp:TemplateField>
<ItemTemplate>
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<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="15px" />
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<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lbl_ser_type" runat="server" Font-Size=".5pt" ForeColor="inactivecaptiontext"
Text='<%# Bind("ser_type") %>' Width="15px"></asp:Label>
</ItemTemplate>
<HeaderStyle BackColor="GradientInactiveCaption" />
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="15px" />
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:RequiredFieldValidator ID="rfv_declaredVal" runat="server" ControlToValidate="txt_DeclaredValue"
ErrorMessage="*" >
</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="rfv_num" runat="server"
ControlToValidate="txt_DeclaredValue" Display="Dynamic" Enabled="false" ErrorMessage="Only (0-9)"
ValidationExpression="^[0-9]*$" Font-Size="10pt" >
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<asp:RegularExpressionValidator ID="rfv_NonNumeric" runat="server" ControlToValidate="txt_DeclaredValue"
Enabled="false" ErrorMessage="Only (a-z/A-Z)" ValidationExpression="^[a-zA-Z'.s]{1,40}$" Font-Size="10pt" >
</asp:RegularExpressionValidator >
<asp:CompareValidator ID="cv_txtDate" runat="server"
ControlToValidate="txt_DeclaredValue" ErrorMessage="dd/MM/yyyy only"
Operator="DataTypeCheck" Type="Date" Font-Size="10pt" >
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<asp:RegularExpressionValidator ID="rev_Decimal" runat="server" ErrorMessage="Only Decimal"
ControlToValidate="txt_DeclaredValue" Style="position: relative" Font-Size="10pt"
ValidationExpression="(?!^0*$)(?!^0*.0*$)^d{1,18}(.d{1,2})?$" />
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<HeaderStyle BackColor="GradientInactiveCaption" />
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" />
</asp:TemplateField>
</Columns>
<HeaderStyle BorderColor="Navy" BorderStyle="Solid" BorderWidth="1px" ForeColor="#0000C0"
Height="25px" HorizontalAlign="Left" VerticalAlign="Middle" />
</asp:GridView>
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<td style="width: 10px">
</td>
</tr>
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<td style="width: 11px; height: 26px">
</td>
<td style="width: 583px; height: 26px">
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<tr>
<td style="width: 63px; height: 26px">
<asp:Button ID="btnSubmit" runat="server" Style="left: 0px;
position: relative; top: 0px" Text="Submit" OnClick="btnSubmit_Click1" />
</td>
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<asp:Button ID="btnRemindLater" runat="server" OnClientClick="winclose()"
Style="left: 0px; position: relative" Text="Remind Me Later" UseSubmitBehavior="False"
Width="120px" />
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<td style="vertical-align: middle; width: 304px; height: 26px; text-align: right">
<asp:Label ID="lbl_LastDatePopup" runat="server" Font-Bold="False" Font-Size="Small"
ForeColor="Red" Style="position: relative" Width="100%"></asp:Label></td>
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<asp:Label ID="Label1" runat="server" BackColor="InactiveCaptionText" Style="position: relative">
</asp:Label><asp:ValidationSummary ID="ValidationSummary1" runat="server" HeaderText="Please correct the mandatory fields labeled with * "
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C# - Getting Two Different Data Types From IEnumerable?
Jun 29, 2010I have IEnumerable object with value1 and value2. value2 is an array and value1 is string. I want to databind this object to Listview like that. So both value1 and value2[0] (always first item in array) could be accessed via <%# Eval("value1") %> and <%# Eval("value2") %> .
How to write expression to handle both items ?
ListViewItems.DataSource = f.Items.Select(t => t.value1, t.value2[0]);
ListViewItems.DataBind();
C# - Is There A Class To Convert Between .NET Data And XML Types
Oct 13, 2010I need to convert .NET data to XML types and viceversa and I wonder if there is any class already on the .NET framework to do it. UPDATE I want to perform a data type conversion.
View 2 RepliesWCF / ASMX :: Finding Information About Data Types
Aug 26, 2010Well i am just trying to test interoperability between ASP.net And Java web services, wanted to know what are the INTEROPERABILITY issues concering DATA TYPES that are there between the 2?
View 3 RepliesWeb Forms :: Regular Expressions For MSSQL Data Types?
Mar 26, 2010I am getting ready to just write my own, but I have a need for some regular expressions that will validate strings to make sure they are in an acceptable format to be inserted/updated into a database field. I figure it may just be to find a list of them someone has already posted somewhere and just use those.
View 3 RepliesMVC - Posting A Form With Custom Fields Of Different Data Types?
Dec 10, 2010In my ASP.NET MVC 2 web application, I allow users to create custom input fields of different data types to extend our basic input form. While tricky, building the input form from a collection of custom fields is straight-forward enough.However, I'm now to the point where I want to handle the posting of this form and I'm not certain what the best way to handle this would be. Normally, we'd use strongly-typed input models that get bound from the various statically-typed inputs available on the form. However, I'm at a loss for how to do this with a variable number of input fields that represent different data types.A representative input form might look something like:
My date field: [ date time input
control ]
My text field: [ text input
field ]
My file field: [ file upload
control ]
My number field: [ numerical input control ]
My text field 2: [text input field ]
etc...
Ideas I've thought about are:Sending everything as strings (except for the file inputs, which would need to be handled specially).Using a model with an "object" property and attempting to bind to that (if this is even possible).Sending a json request to my controller with the data encoded properly and attempting to parse that.Manually processing the form collection in my controller post action - certainly an option, but I'd love to avoid this.Has anyone tackled an issue like this before? If so, how did you solve it?Update:My "base" form is handled on another input area all together, so a solution doesn't need to account for any sort of inheritence magic for this. I'm just interested in handling the custom fields on this interface, not my "base" ones.Update 2:Thank you to ARM and smartcaveman; both of you provided good guidance for how this could be done. I will update this question with my final solution once its been implemented.
SQL Server :: Data Types Uniqueidentifier Specified Cast Is Not Valid?
Nov 16, 2010have a table that keeps track of customer data that is beyond the scope of the Membership Class, this table I am also using the Membership.CreateUser() generated user ID.When I use my INSERT statement however to create a new row in my table I keep getting the Specified cast is not valid error.This is my SQL Command (The ...refer to other fields)
Dim mySqlCommand As String = "INSERT INTO Customers (UserID, ...) VALUES (@UserID, ...)"
I send it to my Write_Database(mySqlCommand, Membership.GetUser(txtUserName.Text).ProviderUserKey, ...) function which then
I also tried sending he UserID as: CType(Membership.GetUser(txtUserName.Text).ProviderUserKey, SqlGuid)
Neither Works...both cause errors...My Write_Database Function is declared as follows:
Public Function Write_Database(ByVal MysqlQuery As String, ByVal UserID As System.Data.SqlTypes.SqlGuid, ...)
However Visual Studio shows that the error originates in the function calling code...
Data Controls :: Exporting GridView To Various File Types?
Sep 11, 2012Exporting the GridView to various file types. I have got the PDF working great and also want to add Excel. When I use the code I get a message that the file I am trying to open is a different file format from the extension I am trying to open. If i click OK it opens and alls is fine. Trying to get rid of this errors so customers and sales staff doesn't see it. Excel is version 2010.
View 1 RepliesData Types Text And Varchar Are Incompatible In The Equal To Operator?
Dec 4, 2010Here is the code:
Code:
Dim intusercount As Integer = 0
Using connection As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database.mdf;Integrated Security=True;User Instance=True")
Using command As New SqlCommand("SELECT [ID] FROM [Members] WHERE [Username]=@Username AND [Password]=@Password", connection)
command.Parameters.Add("@Username", Data.SqlDbType.VarChar).Value = TextBox1.Text
command.Parameters.Add("@Password", Data.SqlDbType.VarChar).Value = TextBox2.Text
connection.Open()
intusercount = command.ExecuteScalar
connection.Close()
If intusercount > 0 Then
MsgBox("Good")
Else
MsgBox("Bad")
End If
End Using
End Using
Error:
The data types text and varchar are incompatible in the equal to operator.
Source Error:
Quote:
Line 11: command.Parameters.Add("@Password", Data.SqlDbType.VarChar).Value = TextBox2.Text
Line 12: connection.Open()
Line 13: intusercount = command.ExecuteScalar
Line 14: connection.Close()
Line 15: If intusercount > 0 Then
Stack:
Code:
[SqlException (0x80131904): The data types text and varchar are incompatible in the equal to operator.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +2030802
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009584
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275
System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
System.Data.SqlClient.SqlDataReader.get_MetaData() +86
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +311
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +987
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteScalar() +139
_Default.Button1_Click(Object sender, EventArgs e) in C:UsersUserDocumentsVisual Studio 2010WebSitesWebSite13Default.aspx.vb:13
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563
Database:
C# - Creating Custom Umbraco Data Editor Setting Types?
Feb 17, 2011I can't seem to find anything on how to edit the data editor settings before umbraco 6.2 (Juno). Is there any simple way, it must be possible. If you don't understand what i mean i want to do the same as [URL]
View 2 RepliesDataSource Controls :: Data Types For Derived Or Calculated Columns?
Apr 26, 2010I spent an hour googling and trying. No success. I want to get the digits behind the dot or comma for my calulcated column:
[code]...
But it just shows me a 0 and no other digits.
Crystal Reports :: Storing Multiple Data Types In A Class?
Aug 31, 2010I need help writing a class that will contain three values per item. I'll be passing parameters to a report: Parameter Name, Data type (int, string, date, etc), and Value. When I pass those values to the report using the class they should be in original form (i.e. an integer should be a numeric, a string should be a string, etc.).
I can do it converting the data's value to strings on one end, and reconverting to the original data type on the other, which seems like a lot of runaround. Is there a simple way? Also, if I'm able to store & retrieve the data in it's native format I don't need the "Data type" stored.
Forms Data Controls :: Object Cannot Be Cast From DBNull To Other Types
Sep 9, 2010Object cannot be cast from DBNull to other types. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Object cannot be cast from DBNull to other types. Source Error:
[Code]....
Line 292:
Line 293: If DataBinder.Eval(e.Row.DataItem, "Casette") IsNot Nothing Then
Line 294: stcassette += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Casette"))
Line 295: End If
Line 296:
Forms Data Controls :: Object Cannot Be Cast From DBNull To Other Types?
Mar 10, 2010There are two dropdowns for date (Fromdate and Todate) in my webpage and by default when the page loads for the first time the dropdowns loads with the last date (currentdate), if I select some previous date in Fromdate dropdown and reload the page then it displays runtime i.e.
Object cannot be cast from DBNull to other types.
Following code is written under GridView RowDataBound Event.
[Code]....
The error found at following line:
less7daysTotal += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "less7days"))
If I comment this line then the error moves to next line till following line.
grt28daysTotal += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "grt28days"))
I fruther want to inform that some columns in the grid are showing 0 if there is no record but I replaced 0 to - then some 0s replaced and some not. What is the reason?