Re: Datagrid - ASP.NET Discussion Boards

Re: Complex security + role based

chopps27-Jul-06 11:46

chopps

27-Jul-06 11:46

how do you have pages in sitemap.xml file that dont show on navigation structure?

Dynamically created controls disappearing

toptone7827-Jul-06 6:38

toptone78

27-Jul-06 6:38

Hi,
I am trying to sort out creating dynamically created buttons.
For example, i have an input button (HtmlInputSubmit) on my page. This has onserverclick="click1" say.

click1 will then dynamically create another HtmlInputSubmit button, e.g.:
HtmlInputSubmit b = new HtmlInputSubmit();
b.Value = "mmm";
b.ID = "testID";
b.Load += new EventHandler(click2);
b.ServerClick += new EventHandler(click2);

click2 would then do something (e.g. change this new HtmlInputSubmit button's text. I would only use either b.Load or b.ServerClick.

My problem is that if i use b.ServerClick, run the page, when i click on the dynamically created button with text "mmm" the page reloads and the button disappears without calling the click2 method. If i use b.Load click2 gets called when i click on the original button to create the new button, so it gets created with text "new text".

Am i right in thinking that the button is disappearing because of something to do with the viewstate? I want to be able to assign this new button an onclick(onserverclick) event, but at the moment i can't because it keeps disppearing if i click it.

Can anyone help?
Thanks.

Re: Dynamically created controls disappearing

ToddHileHoffer27-Jul-06 6:59

ToddHileHoffer

27-Jul-06 6:59

Please refer to the following link. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/viewstate.asp[^]

Scroll down to View State and Dynamically Added Controls

Good luck.

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Re: Dynamically created controls disappearing

toptone7827-Jul-06 7:42

toptone78

27-Jul-06 7:42

I think i get it. I have to create my dynamic controls at page_init for them to be remembered?

Re: Dynamically created controls disappearing

toptone7827-Jul-06 7:49

toptone78

27-Jul-06 7:49

Actually i think i understand it better now. I have managed to create a button dynmaically in Page_Init and that button then calls my other onclick method. I cannot ever have a button that creates another button though which calls my other onclick method because everytime the page reloads on that click the button will be removed?

Re: Dynamically created controls disappearing

ToddHileHoffer27-Jul-06 7:57

ToddHileHoffer

27-Jul-06 7:57

Exactly, you'd have to add an event handler on every page init. I think you're getting it.

Datagrid

sunilkgopinath27-Jul-06 6:37

sunilkgopinath

27-Jul-06 6:37

I am using c# and asp.net. I have some text boxes,listboxes and a datagrid. when i press "Add" button i nne the vales and the text in the textboxes and the listboxes shold display in the grid witout sending to database. when i press "Save" the rows in the grid should be updated in the database.

Helpme please...

Sunil

Re: Datagrid

ToddHileHoffer27-Jul-06 6:56

ToddHileHoffer

27-Jul-06 6:56

What you need to do is save the DataTable in the viewstate and rebind the grid after the save button is clicked.

I have a user control I wrote that does this so here is some sample code. It starts off with an empty grid. Below is the method that creates the initial datatable and stores it in view state.

<br />
void intiGrid()<br />
    {<br />
        DataTable dt = new DataTable();<br />
        DataColumn c = new DataColumn();<br />
        c.ColumnName = "ClassCode";<br />
        c.DataType = System.Type.GetType("System.String");<br />
        dt.Columns.Add(c);<br />
        <br />
<br />
        c = new DataColumn();<br />
        c.ColumnName = "Required";<br />
        c.DataType = System.Type.GetType("System.Boolean");<br />
        dt.Columns.Add(c);<br />
<br />
        c = new DataColumn();<br />
        c.ColumnName = "ClassDesc";<br />
        c.DataType = System.Type.GetType("System.String");<br />
        dt.Columns.Add(c);<br />
        DataRow row;<br />
        row = dt.NewRow();<br />
        row[0] = "New";<br />
        row[1] = true;<br />
        row[2] = "";<br />
        dt.Rows.Add(row);<br />
<br />
        DataColumn[] columns = new DataColumn[1];<br />
        columns[0] = dt.Columns["ClassCode"];<br />
        dt.PrimaryKey = columns;<br />
        <br />
        this.GVRequiredClassCodes.DataSource = dt;<br />
        this.GVRequiredClassCodes.DataBind();<br />
        ViewState[this.ClientID.ToString() + "DataTable"] = dt;<br />
    }<br />

This next snippet is how I add a new row to the grid.

<br />
  DataTable DT = new DataTable();<br />
           DT = (DataTable) ViewState[this.ClientID.ToString() + "DataTable"];<br />
           DataView DV = new DataView(DT);<br />
           DV.Sort = "ClassCode";<br />
<br />
 //Add the new classcode and bind to the gridview<br />
            DataRow R;<br />
            R = DT.NewRow();<br />
            R[0] = sNewClassCode;<br />
            R[1] = cb.Checked;<br />
            R[2] = classDescription;<br />
            DT.Rows.Add(R);<br />
            this.GVRequiredClassCodes.DataSource = DV;<br />
            this.GVRequiredClassCodes.DataBind();<br />
            ViewState[this.ClientID.ToString() + "DataTable"] = DV.ToTable();<br />

Master page menu click event handleable by content?

Member 9627-Jul-06 5:56

Member 96

27-Jul-06 5:56

I'm writing an asp.net application which will have at least 30 pages that need to be created for editing business objects which I'm porting from a winform app.

They all have a consistent menu so I thought I would put it into a master page and put the different bits in content pages, however from what I can see if I have a save option (for example) on my master page menu, there is no way when a user clicks on it to send that event to the content page for processing.

Re: Master page menu click event handleable by content?

Not Active27-Jul-06 6:09

Not Active

27-Jul-06 6:09

You have access to the content page through the ContentPlaceHolder.Page property. From that you could call a Save method on the page.

only two letters away from being an asset

Re: Master page menu click event handleable by content? [modified]

ToddHileHoffer27-Jul-06 6:17

ToddHileHoffer

27-Jul-06 6:17

Yes you can do so. Add an event handler to the page init
Here is the vb.net if you need c# let me know I'll try to convert.

Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init<br />
'FInd the control in your master page and add the event handler<br />
   Dim ddl As DropDownList<br />
        ddl = CType(Me.Master.FindControl("ddlStates"), DropDownList)<br />
        AddHandler ddl.SelectedIndexChanged, AddressOf ddlStates_SelectedIndexChanged<br />
<br />
'ddlState_SelectedIndexChanged <br />
<br />
end sub<br />
<br />
'Method called on post back after user click<br />
    Protected Sub ddlStates_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)<br />
'Code to fire from master page event<br />
end sub<br />

-- modified at 12:17 Thursday 27th July, 2006

Re: Master page menu click event handleable by content?

Member 9628-Jul-06 4:57

Member 96

28-Jul-06 4:57

Yeah that's it! I extended it into a generic message with object parameter event so I could handle all manner of clicks and various events from the master page.

thanks

Re: Master page menu click event handleable by content?

minhpc_bk27-Jul-06 16:13

minhpc_bk

27-Jul-06 16:13

Another option in my humble opinion is that you can define a public event in the Master page, say Save, then any content page would want to handle this event should subscribe it.

hey , i wanna select multiple rows in the gridview

Mohammed Amine27-Jul-06 5:39

Mohammed Amine

27-Jul-06 5:39

Hi, i finally added a checkbox into my gridview ,great but i still want something to do with Poke tongue | ;-P

well , i want when i check this checkbox to select the row that this checkbox belong to & i also did it but it just select 1 row not more & i want for each selected or checked checkbox to select its row , so do you have any idea abt that stuff ?

i selected the row with that code :

gridview.rows(i).selectedindex = 0

i selected the first row with that code

when i do a for clause to select mutliple rows the previous row lose the select because

row.selectedindex can select just 1 row

& there is no selected index collection neither a select mode i think

thank you

try to be good if you can't be the best

Re: hey , i wanna select multiple rows in the gridview

Not Active27-Jul-06 6:00

Not Active

27-Jul-06 6:00

GridView is not multi-select. You can simulate this behavior by changing the background of the rows as needed however.

only two letters away from being an asset

Re: hey , i wanna select multiple rows in the gridview

Mohammed Amine27-Jul-06 6:05

Mohammed Amine

27-Jul-06 6:05

you mean just illusion isn't it ?
good trick , you win 1-0 Smile | :)

i will try it but if i get something i need your help

thank you

try to be good if you can't be the best

I want to only allow users to use IE exclusively

widget127-Jul-06 5:13

widget1

27-Jul-06 5:13

I am making an internal application with very stringent display requests. It will only display properly in IE 5.5 or greater. The end usrs want me to block anyone else's browser so that they are forced to view through IE - how can I set this up with a custom message page explaining that. I am not sure how to proceed - where to put the code etc. . . .

I have to deliver the finished product shortly and really need some assistance,
Thx, T

Re: I want to only allow users to use IE exclusively

_AK_27-Jul-06 5:15

_AK_

27-Jul-06 5:15

If you want to check type of the browser then this you can do with javascript.

Best Regards,
Apurva Kaushal

Re: I want to only allow users to use IE exclusively

Colin Angus Mackay27-Jul-06 5:57

Colin Angus Mackay

27-Jul-06 5:57

But people can turn off javascript so it could never get run.

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Re: I want to only allow users to use IE exclusively

widget127-Jul-06 7:21

widget1

27-Jul-06 7:21

Is there not a way to check if the browser is not an IE version and then display a page stating that the requirements require it to be run through IE - this is just an internal application and will not be for public consumption - sorta speak. I would prefer not to use javascript in case it is turned off. I am using some CSS styles that are not viewable in firefox which is one I want to exclude.

Thx, T

Well lets see

Ennis Ray Lynch, Jr.27-Jul-06 5:28

Ennis Ray Lynch, Jr.

27-Jul-06 5:28

If it will only display in IE 5.5 or greater there is a bigger problem.

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"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."

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Re: Well lets see

_AK_27-Jul-06 5:33

_AK_

27-Jul-06 5:33

I guess what exactly the need would be that the page will function completely, otherwise the data won't be displayed properly. Smile | :)

Best Regards,
Apurva Kaushal

Is it possible to store data in database

sabby200627-Jul-06 4:59

sabby2006

27-Jul-06 4:59

Is it possible to store data in database through code.
in asp .net 2.0. i am using textbox to do that it is possible througn prored prodedure. but is there any other way

Please help

Sarbjeet Singh

Re: Is it possible to store data in database

_AK_27-Jul-06 5:17

_AK_

27-Jul-06 5:17

Ofcourse it is possible to store data through code(either you can use sqlquery or the stored procedure for that purpose.)

Best Regards,
Apurva Kaushal

Re: Is it possible to store data in database

J4amieC27-Jul-06 5:18

J4amieC

27-Jul-06 5:18