|
OK, now we're getting somewhere!
Rather than passing a separate bool flag, you can use a nullable type[^] to pass your enum:
void SomeMethod(SomeEnum? theEnum)
{
if (theEnum.HasValue)
{
switch (theEnum.Value)
{
case SomeEnum.Item1:
{
...
}
}
}
else
{
}
}
SomeMethod(SomeEnum.Item1);
SomeMethod(null);
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
modified 18-Dec-12 15:08pm.
|
|
|
|
|
How silly. I don't see what all the confusion is about. Just do it the "standard" way.
enum eType
{
None = -1,
Enum1 = 0,
Enum2 = 1,
etc.
}
void SomeMethod()
{
SomeMethod(eType.None);
}
void SomeMethod(eType e)
{
}
|
|
|
|
|
According to MSDN[^]:
A procedure cannot detect at run time whether a given argument has been omitted or the calling code has explicitly supplied the default value
You have a few choices. You can overload the method and have a private one with a bool flag:
public void Method()
{
Method(true, 0);
}
public void Method(YourEnum yourEnum)
{
Method(false, yourEnum);
}
private void Method(bool ignoreEnum, YourEnum yourEnum)
{
if(ignoreEnum)
{
}
else
{
}
}
You can use nullable as suggested in an answer above.
You can add a value to the enum Invalid = -1 and use that as the default parameter value.
|
|
|
|
|
< Insert scatalogical humor >
|
|
|
|
|
Hello,
I'm currently developing an Integration Package for VS 2010. When I'm debugging the project, it does normally start an experimental hive that includes my package.
My problem: Changes in *.vsct file does not have an effect on the loaded package [at the hive]. Changes in .cs files are accepted normally to the hive package after debug.
The way I found to fix this is to reinstall the package in the hive, but this is definitly no suitable solution.
Thanks for help.
|
|
|
|
|
here is the aspx code for my page
<asp:GridView ID="examgrid" runat="server" AutoGenerateColumns="false"
AllowPaging="true" OnPageIndexChanging="examgrid_pageindexchanging"
onrowdatabound="examgrid_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Exam">
<ItemTemplate>
<asp:Label ID="quesname" runat="server" Text='<%Eval(Ques_Name) %>'></asp:Label>
<br />
<asp:RadioButton ID="op1" runat="server" Text='<%Eval(Option1) %>' /><br />
<asp:RadioButton ID="op2" runat="server" Text='<%Eval(Option2) %>' /><br />
<asp:RadioButton ID="op3" runat="server" Text='<%Eval(Option3) %>' /><br />
<asp:RadioButton ID="op4" runat="server" Text='<%Eval(Option4) %>' /><br />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
can any tells me how do i can show the values from database into radio buttons and in label which is reside into gridview in a single column
i use that code in c#
for (int i = 0; i <= dt.Rows.Count - 1; i++)
{
string ques = dt.Rows[i][0].ToString();
string opt1 = dt.Rows[i][1].ToString();
string opt2 = dt.Rows[i][2].ToString();
string opt3 = dt.Rows[i][3].ToString();
string opt4 = dt.Rows[i][4].ToString();
examgrid.Rows[i].Cells[0].Text = ques;
RadioButton op1 = (RadioButton)examgrid.FindControl("op1");
RadioButton op2 = (RadioButton)examgrid.FindControl("op2");
RadioButton op3 = (RadioButton)examgrid.FindControl("op3");
RadioButton op4 = (RadioButton)examgrid.FindControl("op4");
op1.Text = opt1;
op2.Text = opt2;
op3.Text = opt3;
op4.Text = opt4;
}
but in tht code radio shows null each one,
can anyone help me in it
modified 18-Dec-12 8:04am.
|
|
|
|
|
You may get a better chance of help in the ASP.NET forum.
One of these days I'm going to think of a really clever signature.
|
|
|
|
|
Hey guys,
Long story short:
I have a number of classes that are structured like this:
class ClassA
{
[WantToCopy]
public Property1 { get; set; }
public Property2 { get; set; }
}
class ClassB : ClassA
{
public Property1 { get; set; }
public Property2 { get; set; }
}
class ClassC
{
public ClassB { get; set; }
public Property1 { get; set; }
public Property2 { get; set; }
}
I am trying copy the ClassA values (marked with a specific attribute) from an instance of ClassB to a new instance of ClassA.
This is what I am doing:
T resp = GetClassC();
var types = resp.GetType().GetProperties();
foreach (var type in types)
{
if(type.PropertyType.IsSubclassOf(this.GetType()))
{
List<PropertyInfo> fields = GetFields(type.PropertyType);
foreach (var field in fields)
{
var value = field.GetValue(resp , null);
field.SetValue(this, value , null);
}
}
}
The problem is I get a TargetException when I try and get a ClassA value from a ClassC instance (which makes sense).
ClassC is a generic type. I don't know anything about the ClassB member.
Does anyone have any tricks that could help me out here? Or will I have to use an interface?
P.S I am keen to keep this code to <= .NET 3.5 if possible.
Thank you,
Mark
Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen
|
|
|
|
|
You're trying to read the value of a property defined in ClassA from an instance of ClassC , which doesn't inherit from ClassA .
Try something like this instead:
Type myType = this.GetType();
List<PropertyInfo> propertiesToCopy = GetFields(myType);
foreach (PropertyInfo property in resp.GetType().GetProperties())
{
if (property.PropertyType.IsSubclassOf(myType) || property.PropertyType == myType)
{
var propertyValue = property.GetValue(resp, null);
if (propertyValue == null) continue;
foreach (PropertyInfo propertyToCopy in propertiesToCopy)
{
var value = propertyToCopy.GetValue(propertyValue, null);
propertyToCopy.SetValue(this, value, null);
}
}
}
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
|
|
|
|
|
Thanks Richard that looks like it will do what I am trying to achieve, cheers mate!
Mark Brock
I'm pretty sure there's a lot more to life than being really, really, ridiculously good looking
|
|
|
|
|
As you seem to have access to the code, why not add a copy constructor or Clone method to ClassA?
|
|
|
|
|
Thanks for your response. That is a good suggestion, but in this particular case I am trying to avoid using that approach.
Much appreciated anyway
Mark Brock
I'm pretty sure there's a lot more to life than being really, really, ridiculously good looking
|
|
|
|
|
hi.i want make a report that have 60 filed.and its very hard to me for make report in crystal report in one page,please help me to make several pages in crystal report.
|
|
|
|
|
You can add page breaks in the design interface in CR (spit)
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
How can i transfer files from a specified location to my server using FTP.
|
|
|
|
|
Look at the MSDN Sample below:
[^]
|
|
|
|
|
I want to move all the files in the given directory path to server Using FTP.
|
|
|
|
|
Is this a C# question? If not then you just need to use the FTP commands to send the files. If you are trying to transfer through some code then you should take a look at the FtpWebRequest Class[^].
One of these days I'm going to think of a really clever signature.
|
|
|
|
|
I see voting still hasn't been restored, so here's a for the post.
"I've seen more information on a frickin' sticky note!" - Dave Kreskowiak
|
|
|
|
|
One of these days I'm going to think of a really clever signature.
|
|
|
|
|
Maybe you have to use a foreach loop and different threads to upload the stuff...
foreach(string file in Directory.GetFiles("C:\Temp\FtpUpload"))
{
FTPClass.UploadFile(file);
}
|
|
|
|
|
I have developed master-detail relationship in two grids, but i want in one grid. Is it possible or not in windows Application?
|
|
|
|
|
Mis$Fit wrote: Is it possible or not in windows Application?
It's possible.
------------------------------
Author of Primary ROleplaying SysTem
How do I take my coffee? Black as midnight on a moonless night.
War doesn't determine who's right. War determines who's left.
|
|
|
|
|
|
You'll either have to use a 3rd party grid control that supports it or develop you're own (not easy!). The DatGridView doesn't support it.
|
|
|
|