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Hello,
Does anybody have SDK of Digital Persona Finger Reader 4000B? or any help material regarding this.
Thank and best regards,
waqasb4all@yahoo.com
|Muhamad Waqas Butt|
waqasb4all@yahoo.com
www.sktech.freewebspace.com
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After reading this post, what do you think the first website would be that anyone is going to go to to find this?
What do you think they'll type into the little search box?
How much do you want to bet that what you seek will be the first item listed in the results?
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Hi,
I'm assigning value to a DataSet ds (from SQL database) in button A Click event and I set this dataset as DataSource for my grid.
Next if I check the value of this DataSet ds in another button click event, I can't get its value. ds is a Class variable, but I still can't get its value.
The DataSet has one table, which I can see in button A Click event, but in another button event click if i Check the values of ds.Tables.Count, its zero. I'm not manipulating the DataSet anywhere. Could anyone tell me why this happens?
Regards,
Blumen
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Your post contains some ambiguity.
blumenhause wrote: ds is a Class variable
What do you mean by class variable?
Do you mean:
* static field
* member instance field
blumenhause wrote: but I still can't get its value.
blumenhause wrote: The DataSet has one table, which I can see in button A Click event, but in another button event click if i Check the values of ds.Tables.Count, its zero.
So, which is it? Either you can see the dataset or you can't.
Is this an ASP.NET application? If so, remember that state is not maintained between postbacks.
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Colin Angus Mackay wrote: Your post contains some ambiguity.
Yes, this is a private Class variable or a field (its declared inside the class outside all Methods)
This is an ASP.NET code-behind file. But there is no post back here. I click Button A and dataset gets filled with data. Now I put a break point in button B click event and inside that button I check if this dataset using Quick Watch in VS 2003. But although inside Button A click event handler the ds showed 1 Table, inside B's click handler its showing zero Tables.
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Is this in ASP.NET pages?
You might have a postback problem...?
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Hi,
This is an ASP.NET code-behind file. But there is no post back here. I click Button A and dataset gets filled with data. Now I put a break point in button B click event and inside that button I check if this dataset using Quick Watch in VS 2003. But although inside Button A click event handler the ds showed 1 Table, inside B's click handler its showing zero Tables.
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I think the page is redeclaring the DS when you click the first button.
Try to add the DS to viewstate.
Then in the 2nd button, use the DS from viewstate.
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ViewState is not returning data as well, I am now populating a DataSet everytime I need to get the data.
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How do i writ a code to extract a file and save it in a folder?
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I actually need a code in c# to extract files from a folder that was extracted from a SWIFT machine
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What is a SWIFT machine ? Is the folder compressed ? As a zip, or something else ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Its just an ordinary folder (very large though) that has a lot of files and i need a code to extract these files and save into different folders for easy accessibility
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Use
System.IO.StreamReader;<br />
System.IO.StreamWriter;
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after using
System.IO.StreamReader;
System.IO.StreamWriter;
then what next.I actually need a procedure,thanks
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Hope this helps:
try<br />
{<br />
string fileContents;<br />
<br />
using (StreamReader sr = new StreamReader(FileName))<br />
{<br />
fileContents = sr.ReadToEnd();<br />
}<br />
return fileContents;<br />
}<br />
catch (Exception exc)<br />
{<br />
return exc.Message;<br />
}
To write contents to a file use StreamWriter instead of StreamReader.
Then use yourStreamWriterObject.Write(ContentWritten); to write the contents to a file.
Hope this is helpful enough to you.
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If you're just moving/copying files from one place to another then File.Copy and File.Move may interest you.
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I am having a samll problem i want to add no of days to a dte variable using c#.net. Say suppose the date variable is haveing a date 25/05/2007. If i add 7 day to it i should get 01/06/2007. Can any one help me in this regard.
thanx in advance
prashanth,
s/w Engineer,
Syfnosys.
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hi,
adding days,months,... is not that hard. the DateTime structure provides the function for that.
just do the following:
DateTime dt = DateTime.Now; //getting present date and time
dt.AddDays(7);// adding 7 days to it
dt.AddDays(-4);// subtracting 4 days
hope this helps
regards
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DateTime dt = new DateTime(2007, 05, 25);<br />
dt = dt.AddDays(7);
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You can use Datetime.AddDays method
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Bitmap bm = new Bitmap(@"c:\Hamtaro.jpg");
Graphics gr = Graphics.FromImage(bm);
gr.DrawString("Hello Graphics", new Font("Verdana", 10),
new SolidBrush(Color.Tomato), 1, 40);
Error 1 Cannot implicitly convert type 'System.Drawing.Image' to 'System.Drawing.Bitmap'. An explicit conversion exists (are you missing a cast?)
And sorry, how do you save it eventually??
Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)
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hi,
i don't see why the code doesn't work??
i tried the code below and it worked fine.
you can use the save function to save the new image.
Bitmap bm = new Bitmap(@"c:\testimage.jpg");<br />
Graphics gr = Graphics.FromImage(bm);<br />
gr.DrawString("Hello Graphics", new Font("Verdana", 10),new SolidBrush(Color.Tomato), 1,40);<br />
gr.Dispose();<br />
bm.Save(@"c:\testimage2.jpg");
regards
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Funny, it's working real fine now
Thank you so much 1119![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)
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