ASP.NET

11-Jul-08 2:30

Hi I thought I had sorted this but I was wrong.
Basically Ive need to get a column value for the current row I am trying to update. The update is happening on a dropdownselectedchange click event. I thought that if I added in:
string strID = GridView1.DataKeys[x].Values[1].ToString();

it would work but it doesnt perform the update. I need to get another column id for the current row I am updating
any help on this would be great
thanks! Smile | :)

public void dd_OnSelectedIndexChanged(object sender, EventArgs e)
{
for (int x = 0; x < GridView1.Rows.Count; x++)
{
GridViewRow row = GridView1.Rows[x];
string strID = GridView1.DataKeys[x].Values[1].ToString();

SqlCommand cmd_update_activity_order = new SqlCommand("update_activity_order", con);
cmd_update_activity_order.CommandType = CommandType.StoredProcedure;

Sherin Iranimose11-Jul-08 4:32

11-Jul-08 4:32

if you are trying to update only one row, Why there is a for loop inside SelectedIndexChanged event.

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

eyeseetee11-Jul-08 4:41

11-Jul-08 4:41

because another person on this forum told me to do it.
Do you know how I can get the current selected dropdownlist value and the another column value from the same row?

Sherin Iranimose11-Jul-08 4:52

11-Jul-08 4:52

.netman wrote:
current selected dropdownlist value

Because of you are going to do this in the SelectedIndexChange event,
You can you the 'sender', convert sender to dropdownlist and use selected value.

.netman wrote:
another column value from the same row

How you are going to identify the current row(index of the row)?
If you know then, What is the problem of getting the value?

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

eyeseetee11-Jul-08 5:05

11-Jul-08 5:05

Sherin Iranimose wrote:
You can you the 'sender', convert sender to dropdownlist and use selected value.

Can you explain what you mean by sender

Sherin Iranimose wrote:
How you are going to identify the current row(index of the row)?

I'm not sure how to get the current row values e.g. another column

Sherin Iranimose11-Jul-08 5:10

11-Jul-08 5:10

.netman wrote:
Can you explain what you mean by sender

I was talking about the sender object in the OnSelectedIndexChanged Event handler

In the OnSelectedIndexChanged Event, you can use something like below...

DropDownList dropdown=(DropDownList)sender;
dropdown.SelectedValue <-- gives the selected value

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

Sherin Iranimose11-Jul-08 6:13

11-Jul-08 6:13

.netman wrote:
I'm not sure how to get the current row values e.g. another column

One way of doing this is to store the row number in the value field of the dropdown,

Eg:

in first row dropdown
Text value
1     1_1
2     2_1
3     3_1
4     4_1

1_1 will change to 1_2,2_1 to 2_2 and so on in the second dropdown

If you select 4 from 3rd row you will get 4_3 as value

So that you can retrieve the row index from this value field as follows

string val=drop.SelectedValue;
string rowNum=val.Substring(val.IndexOf("_")+1);

Hope this will help you Smile | :)

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

HttpContext.Current.Request.AnonymousID return null value

Herman<T>.Instance16-Jul-08 1:50

Herman<T>.Instance

16-Jul-08 1:50

Use DataKeyMember and DataKeyValue in your GridView.

In the OnSelectedIndexChanged(object sender, EventArgs e)

DropDownList ddl = (DropDownList)sender;
GridViewRow row = (GridViewRow)ddl.NamingContainer;

In that case you have the data of the GridViewRow that caused the Event.

GridView.SelectedIndex = row.RowIndex;
You know know the rownumber and with GridView.SelectedValue you know the DataKeyValue.

AT the end of the Eventhandler you state:
GridView.SelectedIndex = -1;

Good Luck

shames(Sam)11-Jul-08 2:07

shames(Sam)

11-Jul-08 2:07

Good evening

i done the setting in web.config
<anonymousidentification enabled="true">
cookieTimeout="120000"
cookieRequireSSL="false"
cookieSlidingExpiration="true"
cookieProtection="Encryption">

and assign it in variable like
string temp=HttpContext.Current.Request.AnonymousID.ToString();

but AnonymousID contains null value.

what am i doing wrong don't know same code run on another system on same Application.

thanks
s Confused | :confused:

Web Developer

Re: HttpContext.Current.Request.AnonymousID return null value

Paddy Boyd11-Jul-08 3:59

Paddy Boyd

11-Jul-08 3:59

Have you got cookies disabled?

Re: HttpContext.Current.Request.AnonymousID return null value

shames(Sam)11-Jul-08 4:24

shames(Sam)

11-Jul-08 4:24

No I have all ready enable cookies

Web Developer

Re: HttpContext.Current.Request.AnonymousID return null value

shames(Sam)11-Jul-08 4:24

shames(Sam)

11-Jul-08 4:24

No I am all ready enable cookies

Web Developer

video converter

nithydurai11-Jul-08 1:30

nithydurai

11-Jul-08 1:30

i want to convert the any video file into .flv format.. it is worked local server perfectly.. but it is not worked in web server... security exception will be displayed.. i used ffmpeg.exe tool only... pls help me

Process ffmpeg; // creating process
string video;
string mpg;
video = Page.MapPath("movie.wmv");
mpg = Page.MapPath("") + "\\video.flv"; // thumb name with path !
ffmpeg = new Process();
ffmpeg.StartInfo.Arguments = "-i " + video + " -f flv -vcodec flv -qscale 10 -s 480x360 -ar 44100 -acodec libmp3lame " + mpg; // arguments !
ffmpeg.StartInfo.FileName = Page.MapPath("ffmpeg.exe");
ffmpeg.Start();

i receive this error what is this error tell me pls

Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request failed.

Source Error:

[No relevant source lines]

Source File: App_Web_1lwzeoop.0.cs Line: 0

Stack Trace:

[SecurityException: Request failed.]
_Default.Button1_Click(Object sender, EventArgs e) +0
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7350
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +213
System.Web.UI.Page.ProcessRequest() +86
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.default_aspx.ProcessRequest(HttpContext context) in App_Web_1lwzeoop.0.cs
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +358
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Re: video converter

Ashfield11-Jul-08 1:38

Ashfield

11-Jul-08 1:38

Assuming you are running this from a web page, you do not by default have permission to write to the file system, so I suspect that is your problem.

Bob
Ashfield Consultants Ltd

Re: video converter

nithydurai11-Jul-08 1:55

nithydurai

11-Jul-08 1:55

what is the solution of this problem

Re: video converter

Ashfield11-Jul-08 9:38

Ashfield

11-Jul-08 9:38

Grant the necessary permissions on the applicable folders.

Bob
Ashfield Consultants Ltd

Two Dimensional Array into Dataset or datatable

Bharani_Ram11-Jul-08 1:05

Bharani_Ram

11-Jul-08 1:05

i have a two dimensional array of string[,] i want to convert or fill it into the dataset or datatable

and also i need to fill with null value also

iam unable to do this

i tyed this

dataset.Tables.Add(Original_Table); //error says string[*,*] cannot be converted to datatable

Please help me.

Bharani

Re: Two Dimensional Array into Dataset or datatable

Ashfield11-Jul-08 1:32

Ashfield

11-Jul-08 1:32

You need to create a datatable and add your data to it, you cannot cast an array to a datatable. If you want to allow nulls in the columns you will have to decalre them as nullable too.

This should get you started

dt = new DataTable();
dt.Columns.Add(new DataColumn("x", typeof(String)));
DataRow dumRow = dt.NewRow();
dumRow[0] = "All";
dt.Rows.Add(dumRow);

Bob
Ashfield Consultants Ltd

Re: Two Dimensional Array into Dataset or datatable

NeverHeardOfMe11-Jul-08 3:37

NeverHeardOfMe

11-Jul-08 3:37

well I don't know about casting, as per previous answer, but you can certainly bind an array to a datatable... clickety[^]

picture in datalist

strawberrysh11-Jul-08 0:53

strawberrysh

11-Jul-08 0:53

I have a datalist that there is a picture control in it.name of the picture is in database and the picture in a folder on server. how can I change the size of picture that I show in datalist?

Re: picture in datalist

eyeseetee11-Jul-08 1:25