Griview + Checkboxes

Please support our C# advertiser: Programming Forums - DaniWeb Sister Site
Thread Solved

•
•
Join Date: Apr 2008
Posts: 75
Reputation: mansi sharma is an unknown quantity at this point 
Solved Threads: 0
mansi sharma mansi sharma is offline Offline
Junior Poster in Training

Griview + Checkboxes

 
0
  #1
Apr 1st, 2009
I bound gridview with databse..property Checkbox -true .
I have three columns roll,name ,roll.

I want that on button_click, roll nos are displayed whose checkboxes are checked in gridview--
SOURCE TAB
C# Syntax (Toggle Plain Text) 
  1. <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">   
  2.  
  3.    <Columns>      
  4.  
  5.  <asp:TemplateField >  
  6.  
  7.     <ItemTemplate >     
  8.  
  9.      <asp:CheckBox ID ="chk" runat ="server"  />       
  10.  
  11.                </ItemTemplate>    
  12.  
  13.         </asp:TemplateField>     
  14.  
  15.    <asp:BoundField HeaderText="Roll" DataField ="roll" />            
  16.  
  17.    <asp:BoundField HeaderText="Name"  DataField ="name"/>                       
  18.  
  19.  <asp:BoundField HeaderText="Marks" DataField ="marks"/>             
  20.  
  21.            </Columns>    
  22.  
  23.   </asp:GridView>
  24.  
  25. <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"> 
  26.  
  27. <Columns> 
  28.  
  29. <asp:TemplateField > 
  30.  
  31. <ItemTemplate >
  32.  
  33.  <asp:CheckBox ID ="chk" runat ="server" /> 
  34.  
  35. </ItemTemplate>
  36.  
  37.  </asp:TemplateField> 
  38.  
  39. <asp:BoundField HeaderText="Roll" DataField ="roll" /> 
  40.  
  41. <asp:BoundField HeaderText="Name" DataField ="name"/> 
  42.  
  43. <asp:BoundField HeaderText="Marks" DataField ="marks"/> 
  44.  
  45. </Columns>
  46.  
  47.  </asp:GridView>


C# Syntax (Toggle Plain Text) 
  1. public partial class Default3 : System.Web.UI.Page
  2. {
  3. string query;
  4. SqlConnection conn = new SqlConnection("Data Source=SQLEXPRESS;Initial catalog=mansi;Integrated Security=true");
  5. SqlCommand cmd;
  6. protected void Page_Load(object sender, EventArgs e)
  7. {
  8. query = "Select * from Information";
  9. conn.Open();
  10. cmd = new SqlCommand(query, conn);
  11. SqlDataAdapter da = new SqlDataAdapter(cmd);
  12. DataSet ds=new DataSet ();
  13. da.Fill (ds );
  14. GridView1.DataSource = ds;
  15. GridView1.DataBind();
  16. conn.Close();
  17. }
  18.  
  19.  
  20. protected void Button1_Click(object sender, EventArgs e)
  21. {
  22. bool bchecked;
  23.  
  24. for (int i = 0; i < this.GridView1.Rows.Count; i++)
  25. {
  26. bchecked = ((CheckBox)GridView1.Rows[i].FindControl("chk")).Checked;
  27.  
  28. }
  29. }
  30. }



Suppose i have three rows in Gridview & I Uncheck first & third checkboxes,& check the second checkbox,
But everytime in varable bchecked false is coming...y so???Plz help me out..
Last edited by mansi sharma; Apr 1st, 2009 at 2:34 am.
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2007
Posts: 34
Reputation: vizy is an unknown quantity at this point 
Solved Threads: 6
vizy's Avatar
vizy vizy is offline Offline
Light Poster

Re: Griview + Checkboxes

 
0
  #2
Apr 1st, 2009
Hi
The code mentioned in PageLoad.. gets repeated for every postback,
try this way...

•
•
•
•
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostback)
{
query = "Select * from Information";
conn.Open();
cmd = new SqlCommand(query, conn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds=new DataSet ();
da.Fill (ds );
GridView1.DataSource = ds;
GridView1.DataBind();
conn.Close();
}
}
Njoy koding... >>>
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2008
Posts: 75
Reputation: mansi sharma is an unknown quantity at this point 
Solved Threads: 0
mansi sharma mansi sharma is offline Offline
Junior Poster in Training

Re: Griview + Checkboxes

 
0
  #3
Apr 1st, 2009
Thx Very much,It worked...........
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2008
Posts: 75
Reputation: mansi sharma is an unknown quantity at this point 
Solved Threads: 0
mansi sharma mansi sharma is offline Offline
Junior Poster in Training

Re: Griview + Checkboxes

 
0
  #4
Apr 1st, 2009
hi frnd, Now i got the checboxes status,But now I want to get the cell value of second column whose corresponding checkboxes are checked.

On Net,I found but its not working....Help me out...

C# Syntax (Toggle Plain Text) 
  1. protected void Button1_Click(object sender, EventArgs e)
  2.     {
  3.         string sName;
  4.         bool bchecked;
  5.  
  6.         for (int i = 0; i < this.GridView1.Rows.Count; i++)
  7.         {
  8.             bchecked = ((CheckBox)GridView1.Rows[i].FindControl("chk")).Checked;
  9.             if (bchecked == true)
  10.             {
  11.                 Label lblName = (Label)GridView1.FindControl("Name") ;
  12.                 sName = lblName.ToString ;
  13.  
  14.             }
  15.  
  16.  
  17.         }
  18.  
  19.  
  20.     }


SOURCE TAB
C# Syntax (Toggle Plain Text) 
  1. <asp:BoundField HeaderText="Roll" DataField ="roll" />
  2.             <asp:BoundField HeaderText="Name"  DataField ="name"/>
  3.        <asp:BoundField HeaderText="Marks" DataField ="marks"/>
Last edited by mansi sharma; Apr 1st, 2009 at 4:04 pm.
Reply With Quote Quick reply to this message  
•
•
Join Date: Dec 2007
Posts: 34
Reputation: vizy is an unknown quantity at this point 
Solved Threads: 6
vizy's Avatar
vizy vizy is offline Offline
Light Poster

Re: Griview + Checkboxes

 
0
  #5
Apr 2nd, 2009
Hi,

For the Control Values.. U need to convert your Bound Controls to TemplateFields. chk this

•
•
•
•
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label runat="server" ID="Name" Text='<%# Bind("name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
then you can FindControl these values.. in your .cs file
Njoy koding... >>>
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2008
Posts: 75
Reputation: mansi sharma is an unknown quantity at this point 
Solved Threads: 0
mansi sharma mansi sharma is offline Offline
Junior Poster in Training

Re: Griview + Checkboxes

 
0
  #6
Apr 3rd, 2009
thx very much.......
Reply With Quote Quick reply to this message  
Reply

Quick Reply to Thread
This thread has been marked solved.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Other Threads in the C# Forum


Views: 592 | Replies: 5
Thread Tools Search this Thread



Tag cloud for C#
.net access ado.net algorithm array barchart bitmap box broadcast button buttons c# chat check checkbox class client color combobox control conversion csharp custom database datagrid datagridview dataset datetime degrees development drawing encryption enum event excel file files form format ftp function gcd gdi+ http httpwebrequest image index input java list listbox listener login mandelbrot math mouseclick mysql networking object oracle path photoshop picturebox pixelinversion post prime programming radians regex remote remoting resource richtextbox save saving serialization server sleep socket sql statistics stream string table tcp text textbox thread time timer treeview update usercontrol validation view webbrowser windows winforms wpf xml
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC