ASP.NET

30-Dec-07 20:00

If we have a checkbox in a grid when we check the the checkbox a javascript function will be called and if we uncheck the same checkbox another javascript will be called.How is it possible...Its Urgent

http://www.google.com/search?source=ig&hl=en&rlz=&q=Datagrid+with+checkbox&btnG=Google+Search[^]

Michael Sync30-Dec-07 20:03

Michael Sync

30-Dec-07 20:03

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

neerubee30-Dec-07 20:08

neerubee

30-Dec-07 20:08

Check this link
http://www.c-sharpcorner.com/UploadFile/sd_patel/DataGridAndCheckBoxes11232005060439AM/DataGridAndCheckBoxes.aspx[^]

Thanks & Regards
Niranjan

Sun Rays30-Dec-07 20:43

Sun Rays

30-Dec-07 20:43

Hey,
try this..

Javascript function

var chkT;<br />
function Test(chkT)<br />
{<br />
    alert(chkT.checked);<br />
}

Add template filed. In that add checkbox and then find control in RowDataBound event of Gridview.

Code behind file.

try<br />
            {<br />
                CheckBox chk = (CheckBox)e.Row.Cells[6].FindControl("chkTest");<br />
                chk.Attributes.Add("onclick", "javascript:Test(this);");<br />
            }<br />
            catch(Exception ex)<br />
            {<br />
            }

See whats happening...

Thanks,
Sun Rays

To get something you must have to try once.

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SreejithAchutan30-Dec-07 21:15

30-Dec-07 21:15

Thanks for ur kind reply.

I tried like that and i got the click event ,but the pbm is when i uncheck the checkbox i want to call another javascript function.

Sun Rays30-Dec-07 21:39

Sun Rays

30-Dec-07 21:39

Hi,
when you will uncheck you will get item.checked = false.
so you can write if condition.

if(item.checked == true)<br />
{<br />
<br />
//call here Checked function<br />
}<br />
else<br />
{<br />
//call here Unchecked function<br />
}

Hope it will help you

Thanks,
Sun Rays

To get something you must have to try once.

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SreejithAchutan30-Dec-07 21:54

30-Dec-07 21:54

CheckBox ch = (CheckBox)e.Row.Cells[1].FindControl("ChkEdit");
if (ch.Checked == true)
{
ch.Attributes.Add("onclick", "javascript:Del(this);");
}
else
ch.Attributes.Add("onclick", "javascript:BtnAdd_onClick(this);");

I given like that but i wont work

Sun Rays30-Dec-07 22:01

Sun Rays

30-Dec-07 22:01

Hey,
u have mistaken..

Not here..
In Javascript write function...

Call only a single function from codebehind...

But make difference in Javascript...

Got it ? Smile | :)

Thanks,
Sun Rays

To get something you must have to try once.

My Articles

SreejithAchutan30-Dec-07 22:13

30-Dec-07 22:13

Is it possible to call 2 javascript function on a checkbox in a grid on onclick event.one is onclick="return Select(this);" .if possible to call another javascript function on the same onclick event..

Working with dynamically created controls

rahul.net1130-Dec-07 21:47

rahul.net11

30-Dec-07 21:47

Hi This could help.

<br />
<br />
function select_deselectAll (chkVal, idVal)<br />
{<br />
  var frm = document.forms[0];<br />
   // Loop through all elements<br />
  for (i=0;i< frm.length; i++)<br />
  {<br />
    // Look for our Header Template's Checkbox<br />
      if (idVal.indexOf ('CheckAll') != -1)<br />
      {<br />
        // Check if main checkbox is checked, then select or deselect datagrid checkboxes<br />
if(chkVal == true)<br />
{<br />
 frm.elements[i].checked = true;<br />
}<br />
else<br />
{<br />
frm.elements[i].checked = false;<br />
}<br />
// Work here with the Item Template's multiple checkboxes<br />
        }<br />
      else if (idVal.indexOf ('DeleteThis') != -1)<br />
      {<br />
    // Check if any of the checkboxes are not checked, and then uncheck top select all checkbox<br />
if (frm.elements[i].checked == false)<br />
{<br />
  frm.elements[1].checked = false;<br />
  //Uncheck main select all checkbox<br />
}<br />
       }<br />
 }<br />
}<br />
function confirmDelete (frm)<br />
{<br />
 // loop through all elements<br />
 for (i=0; i<frm.length; i++)<br="" mode="hold" /> {<br />
   // Look for our checkboxes only<br />
  if (frm.elements[i].name.indexOf("DeleteThis") !=-1)<br />
   {<br />
     // If any are checked then confirm alert, otherwise nothing happens<br />
     if(frm.elements[i].checked)<br />
     {<br />
      return confirm ('Are you sure you want to delete your selection(s)?')<br />
     }<br />
   }<br />
}<br />
}<br />
<br />
<br />
<asp:datagrid id="MyDataGrid" runat="server" width="700" backcolor="white" bordercolor="black"><br />
CellPadding="3" CellSpacing="0" Font-Size="9pt" AutoGenerateColumns="False" HeaderStyle-BackColor="darkred" HeaderStyle-ForeColor="white"><br />
< Columns><br />
< asp:TemplateColumn><br />
< HeaderTemplate><br />
< asp:CheckBox ID="CheckAll" OnCheckedChanged="javascript: return select_deselectAll (this.checked,this.id);" runat="server" /><br />
< font face="Webdings" color="white" size="4">< /font><br />
< /HeaderTemplate><br />
< ItemTemplate><br />
< asp:CheckBox ID="DeleteThis" OnCheckedChanged="javascript: return select_deselectAll (this.checked, this.id);" runat="server" /><br />
< /ItemTemplate><br />
< /asp:TemplateColumn><br />
< asp:TemplateColumn><br />
< HeaderTemplate><br />
ID<br />
< /HeaderTemplate><br />
< ItemTemplate><br />
< asp:Label ID="StoreID" Text='< %# DataBinder.Eval (Container.DataItem, "ID") %>' runat="server"/><br />
< /ItemTemplate><br />
< /asp:TemplateColumn><br />
< asp:BoundColumn HeaderText="Store" Datafield="Store" runat="server" /><br />
< asp:BoundColumn HeaderText="Address" Datafield="Address" runat="server" /><br />
< asp:BoundColumn HeaderText="City" Datafield="City" runat="server" /><br />
< asp:BoundColumn HeaderText="State" Datafield="State" runat="server" /><br />
< asp:BoundColumn HeaderText="Zip" Datafield="Zip" runat="server" /><br />
< /Columns><br />
< /ASP:DataGrid><br />
<br />
<br />
< asp:Button Text="Delete Items" OnClick="DeleteStore" ID="Confirm" runat="server" /><br />
< span id="OutputMsg" runat="server" /><br />
<br />
public void DeleteStore (Object sender, EventArgs e)<br />
{<br />
string dgIDs = "";<br />
bool BxsChkd = false;<br />
foreach (DataGridItem i in MyDataGrid.Items)<br />
{<br />
CheckBox deleteChkBxItem = (CheckBox) i.FindControl ("DeleteThis");<br />
if (deleteChkBxItem.Checked)<br />
{<br />
BxsChkd = true;<br />
// Concatenate DataGrid item with comma for SQL Delete<br />
dgIDs += ((Label) i.FindControl ("StoreID")).Text.ToString() + ",";<br />
}<br />
}<br />
// Set up SQL Delete statement, using LastIndexOf to remove tail comma from string.<br />
string deleteSQL = "DELETE from Stores WHERE stor_id IN (" + dgIDs.Substring (0, dgIDs.LastIndexOf (",")) + ")";<br />
if (BxsChkd == true)<br />
{<br />
// Execute SQL Query only if checkboxes are checked, otherwise error occurs with initial null string<br />
try<br />
{<br />
SqlHelper.ExecuteNonQuery (objConnect, CommandType.Text, deleteSQL);<br />
}<br />
catch (SqlException err)<br />
{<br />
//Exception Catching code as usual displaying message<br />
}<br />
//Refresh data<br />
BindData();<br />
}<br />
}</asp:datagrid>

People Laugh on me Because i am
Different but i Laugh on them
Because they all are same.

Anuradha61230-Dec-07 18:55

30-Dec-07 18:55

Hi,

I have an appln where in i need to create, text boxes and drop downlists dynamically, the issue here is, how do i retreive the text stored in text box and value selected in the combo.

Thanks in advance

Paul Conrad30-Dec-07 18:58

30-Dec-07 18:58

Just like you normally would. Creating the controls dynamically doesn't change how you access the properties.

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Anuradha61230-Dec-07 19:05

30-Dec-07 19:05

but i am unable to refer to the text property for textboxes,

here is how my code goes, to create control

Dim fldMetadata As TextBox
fldMetadata = New TextBox
fldMetadata.ID = "txtID"
Panel1.Controls.Add(fldMetadata)

I refer to the controls like this,

Dim ctrl As Control
For Each ctrl In Panel1.Controls
If ctrl.ID Like "txtID" Then

'Here i should be able to refer to the control's text property

End If
Next

thanks

Paul Conrad30-Dec-07 19:08

30-Dec-07 19:08

You then should be able to do ctrl.Text=".... "

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

N a v a n e e t h30-Dec-07 19:10

30-Dec-07 19:10

Paul Conrad wrote:
You then should be able to do ctrl.Text=".... "

a cast is needed I guess

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Paul Conrad30-Dec-07 19:13

30-Dec-07 19:13

N a v a n e e t h wrote:
a cast is needed I guess

Not really. I just tried it and works fine here.

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

N a v a n e e t h30-Dec-07 19:26

30-Dec-07 19:26

Paul Conrad wrote:
Not really. I just tried it and works fine here.

I think I miss something. But I am unable to get Text property for Control instance as you told.

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Paul Conrad30-Dec-07 19:31

30-Dec-07 19:31

I made a mistake by doing a winform and not a webform Blush | :O

You can get it in a winform but not webform.

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Anuradha61230-Dec-07 19:11

30-Dec-07 19:11

Thanks, I have tried out, but there is no such property

N a v a n e e t h30-Dec-07 19:09

30-Dec-07 19:09

Anuradha612 wrote:
For Each ctrl In Panel1.Controls
If ctrl.ID Like "txtID" Then

'Here i should be able to refer to the control's text property

TextBox txt = (TextBox)ctrl;

Now use txt for getting the textbox properties.

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N a v a n e e t h30-Dec-07 19:07

30-Dec-07 19:07

Anuradha612 wrote:
how do i retreive the text stored in text box and value selected in the combo.

Adding to Paul's post, are you getting some problem when retrieving value ? If you are not getting the value entered, check the event where you create dynamic controls. It should be before ASP.NET loads the viestate. Init would be appropriate for dynamic controls.

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Anuradha61230-Dec-07 19:16

30-Dec-07 19:16

Yes, i am unable to retreive the value entered, Pls can you be more clear, with the last post, i am unable to understand,

N a v a n e e t h30-Dec-07 19:41

30-Dec-07 19:41

This is a viewstate issue. Hope you know about viewstates. It's mechanism used to keep data across postbacks. For solving the problem, override oninit event and add your controls over there. Then ASP.NET will maintain viewstate for the control and you can get it from Controls collection.

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