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Hello frnd
I declared one variable(like dim num as integer=0),if i click the button1 i want to assign 1(num=1) if i click button2 i want to assign 2(num=2),but every time if i click the button the value is assigned properly but immedialy leaving that function again that variable value is zero,how to solve this problem?
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Probably you are declaring the variable inside the functions. If you do that, a local variable is created which hides the member variable. The only code you want in the function is num = 4. If you have dim num as integer in the method, that's your problem.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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hi frnd
i didn't declare the variable inside function,i declared that variable ,variable declaration part.
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use static variable for that 
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Just to be clear, that does not solve the problem, but if the problem was the value being different between class instances, this would be the solution.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I declared the static variable in declaration part like " static num as int16=10" but is showing error,if i declare that variable inside function means that not showing error.how i want to declare static variable in declaration part.
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ps.srinivasan wrote: declaration part.
What is this declaration part ? A static variable in VB.NET can be declared like
Static Myvar As Integer = 1 I don't think that declaring variable into static won't solve the problem. Where you declared the variable now ?
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N a v a n e e t h wrote: Static Myvar As Integer = 1
I declared the variable like that.
N a v a n e e t h wrote: I don't think that declaring variable into static won't solve the problem.
so how i want to solve that problem.my question is simple if i click different button i want to assign different value for variable. Where i want declare that variable?,how i want to declare that varible?
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ps.srinivasan wrote: Where i want declare that variable?,how i want to declare that varible?
You need to declare your variable inside the form.
Public Class Form1
Inherits System.Windows.Forms.Form
Dim Flag As Integer = 1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Flag = 1
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Flag = 2
End Sub
End Class
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N a v a n e e t h wrote: Public Class Form1
Inherits System.Windows.Forms.Form
sorry frnd my question for web from not window form
Public Class WebForm2
Inherits System.Web.UI.Page
Dim Myvar As Int16 = 0'this code is executing when ever i click the button.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Myvar = 1
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Myvar = 2
End Sub
End Class
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ps.srinivasan wrote: sorry frnd my question for web from not window form
Why don't you tell this before ?  As Guffa told, HTTP is stateless and it can't keep objects/values on postbacks. You can assign the value to a viewstate/cookies/session.
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Abhijit Jana wrote: use static variable for that
Static variables can't be used that way in a web application. Every user would share the same variable.
Unless you have data that should be shared between all users, static variables are useless in a web application.
Experience is the sum of all the mistakes you have done.
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Problem is CG said, adding to his post, you can declare the variable inside the class not inside the function. Variables declared inside the function will be having scope only in the function.
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Making the variable an instance member doesn't help a bit, as the instance of the Page class doesn't survive between postbacks.
Experience is the sum of all the mistakes you have done.
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Guffa wrote: Making the variable an instance member doesn't help a bit, as the instance of the Page class doesn't survive between postbacks.
Yes you are right. But he didn't explained that he is doing this in webforms. I thought it's in winforms.
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N a v a n e e t h wrote: But he didn't explained that he is doing this in webforms.
Well, he posted in the ASP.NET forum...
Experience is the sum of all the mistakes you have done.
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Guffa wrote: Well, he posted in the ASP.NET forum...
 Grin
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A page object only lives while the response is created on the server. Once the response has been created and sent to the browser, the page object goes away.
If you declare a variable in the page object, it will only live as long as the page object lives. Once the response is sent to the browser and the page object goes away, the variable doesn't exist any more.
When you press the button, a new request is sent to the server, a new page object is created to handle the request, and the new page object contains a new instance of the variable that is assigned the initial value of zero.
Web pages are stateless. If you want to keep a value between requests, you have to either send the value back and forth between the server and the browser (using a cookie, viewstate or a hidden field), or assign it to a session variable.
Experience is the sum of all the mistakes you have done.
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Hi...
If u want to keep total count of some thing...
use static variables...
Aswini
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Problem : Need to enter password in which there may be atleast one special character between 2 to 6 position of input string
I dont need this in Javascript (Need only regular expression)
Vikky
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Hi....
use this expression..
[a-z,0-9]{2}[special characters][a-z,0-9]{4}[special characters][a-z,0-9]*
1st 2 char are from a to z or 0 to 9...
[special characters] -- define special char here
same for the next chars...
Aswini
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I have to generate the nested gridview.in order to do it, is it mandatory that i have to drag drop the sql datasouce?
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Sonia Gupta wrote: is it mandatory that i have to drag drop the sql datasouce?
No it's not mandatory. SQLDataSource is for newbies which makes things very easy. You can put a template column on the main gridview and put another gridview inside the template column. On GridViews' RowDatabBound event, find the child GridView and bind it.
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i am doing in the Folowing manner
protected void gvCars_rowDataBound(object sender, GridViewRowEventArgs e)<br />
{<br />
if (e.Row.RowType == DataControlRowType.DataRow)<br />
{<br />
GridView gv = (GridView)e.Row.FindControl("gvModels");<br />
AccessDataSource asd = new AccessDataSource(@"App_Data\SkinSample.mdb", "SELECT carmodel_name,carmodel_engine,carmodel_color FROM carmodel WHERE carmaker_id=" + ((DataRowView)e.Row.DataItem)["carmaker_id"].ToString());<br />
gv.DataSource = asd;<br />
gv.AutoGenerateColumns = false;<br />
BoundField bfModelName = new BoundField();<br />
bfModelName.DataField = "carmodel_name";<br />
BoundField bfEngine = new BoundField();<br />
bfEngine.DataField = "carmodel_engine";<br />
BoundField bfColor = new BoundField();<br />
bfColor.DataField = "carmodel_color";<br />
gv.Columns.Add(bfModelName);<br />
gv.Columns.Add(bfEngine);<br />
gv.Columns.Add(bfColor);<br />
gv.DataBind();<br />
}<br />
}
seems a little busy process because i have 15000 rows and doing paging @ 10
Sir , I have to show it in something like , there is a button in gridview in each row, on clicking the button at the particular row , it should view it's pertaining information into the same row.
i think , i should use the edit item template ?
-- modified at 2:14 Friday 16th November, 2007
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Sonia Gupta wrote: i should use the edit item template ?
No you can show the inner gridview on click of a button without any postback using javascript. Put your inner Gridview inside a HTML <div> element and make it's visibility to none. Assigns a JS function to the button which changes this div's display status to block. It will be very easy for the user to view the records.
Sonia Gupta wrote: AccessDataSource asd = new AccessDataSource(@"App_Data\SkinSample.mdb", "SELECT carmodel_name,carmodel_engine,carmodel_color FROM carmodel WHERE carmaker_id=" + ((DataRowView)e.Row.DataItem)["carmaker_id"].ToString());
This is not at all a secure method. You have to use parameterized queries which won't cause SQL injection problems.
Sonia Gupta wrote: i have 15000 rows and doing paging @ 10
In performance perceptive, selecting 15000 records and doing paging is not recommended. You need to look into custom paging.
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