Check All Checkbox In GridView To Bulk Edit Update ASP.NET

This example explains how to use Check All Checkbox In GridView To Bulk Edit Or Update in ASP.NET with C# and VB.NET. I have put a checkBox in header Template of gridview which on checking will check all rows in gridview using server side code to implement CheckAll CheckBox functionality.

CheckAll CheckBox In GridView to Edit and Update


Html SOURCE OF GRIDVIEW
<asp:GridView ID="GridView1" runat="server" 
              DataSourceID="SqlDataSource1" 
              AutoGenerateColumns="false" 
              CellPadding="2" ForeColor="#333333" 
              GridLines="Both" 
              DataKeyNames="ID" 
              OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="CheckAll">
<HeaderTemplate>
<asp:CheckBox ID="chkSelectAll" runat="server" 
              AutoPostBack="true" 
              OnCheckedChanged="chkSelectAll_CheckedChanged"/>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" 
              AutoPostBack="true" 
              OnCheckedChanged="chkSelect_CheckedChanged"/>
</ItemTemplate>
</asp:TemplateField>

<asp:BoundField DataField="ID" HeaderText="ID" 
                SortExpression="ID"/>
<asp:TemplateField HeaderText="Name" SortExpression="Name">
<ItemTemplate>
<asp:TextBox ID="txtName" runat="server" 
             Text='<%# Bind("Name") %>' ForeColor="Blue" 
             BorderStyle="none" BorderWidth="0px" 
             ReadOnly="true" >
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderText="Location" SortExpression
="Location">
<ItemTemplate>
<asp:TextBox ID="txtLocation" runat="server" 
             Text='<%# Bind("Location") %>' 
             ForeColor="Blue" BorderStyle="none" 
             ReadOnly="true">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [ID], [Name], [Location] FROM [Details]" 
DeleteCommand="DELETE FROM Details WHERE (ID = @ID)" 
UpdateCommand="UPDATE [Details] SET [Name] = @Name, 
               [Location] = @Location WHERE [ID] = @ID">
<DeleteParameters>
<asp:Parameter Name="ID" />
</DeleteParameters>

<UpdateParameters>
<asp:Parameter Name="Name" />
<asp:Parameter Name="Location" />
<asp:Parameter Name="ID" />
</UpdateParameters>
</asp:SqlDataSource>

<asp:Button ID="btnUpdate" runat="server" 
            OnClick="btnUpdate_Click" Text="Update" />
<asp:Button ID="btnDelete" runat="server" 
            OnClick="btnDelete_Click" 
            Text="Delete" />

C# CODE
protected void chkSelectAll_CheckedChanged
                               (object sender, EventArgs e)
{
 CheckBox chkAll = 
    (CheckBox)GridView1.HeaderRow.FindControl("chkSelectAll");
 if (chkAll.Checked == true)
 {
   foreach (GridViewRow gvRow in GridView1.Rows)
   {
    CheckBox chkSel = 
         (CheckBox)gvRow.FindControl("chkSelect");
    chkSel.Checked = true;
    TextBox txtname = (TextBox)gvRow.FindControl("txtName");
    TextBox txtlocation = (TextBox)gvRow.FindControl("txtLocation");
    txtname.ReadOnly = false;
    txtlocation.ReadOnly = false;
    txtname.ForeColor = System.Drawing.Color.Black;
    txtlocation.ForeColor = System.Drawing.Color.Black;
   }
 }
 else
 {
  foreach (GridViewRow gvRow in GridView1.Rows)
  {
   CheckBox chkSel = (CheckBox)gvRow.FindControl("chkSelect");
   chkSel.Checked = false;
   TextBox txtname = (TextBox)gvRow.FindControl("txtName");
   TextBox txtlocation = (TextBox)gvRow.FindControl("txtLocation");
   txtname.ReadOnly = true;
   txtlocation.ReadOnly = true;
   txtname.ForeColor = System.Drawing.Color.Blue;
   txtlocation.ForeColor = System.Drawing.Color.Blue;
   }
  }
}

VB.NET
Protected Sub chkSelectAll_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
    Dim chkAll As CheckBox = DirectCast(GridView1.HeaderRow.FindControl("chkSelectAll"), CheckBox)
    If chkAll.Checked = True Then
        For Each gvRow As GridViewRow In GridView1.Rows
            Dim chkSel As CheckBox = DirectCast(gvRow.FindControl("chkSelect"), CheckBox)
            chkSel.Checked = True
            Dim txtname As TextBox = DirectCast(gvRow.FindControl("txtName"), TextBox)
            Dim txtlocation As TextBox = DirectCast(gvRow.FindControl("txtLocation"), TextBox)
            txtname.[ReadOnly] = False
            txtlocation.[ReadOnly] = False
            txtname.ForeColor = System.Drawing.Color.Black
            txtlocation.ForeColor = System.Drawing.Color.Black
        Next
    Else
        For Each gvRow As GridViewRow In GridView1.Rows
            Dim chkSel As CheckBox = DirectCast(gvRow.FindControl("chkSelect"), CheckBox)
            chkSel.Checked = False
            Dim txtname As TextBox = DirectCast(gvRow.FindControl("txtName"), TextBox)
            Dim txtlocation As TextBox = DirectCast(gvRow.FindControl("txtLocation"), TextBox)
            txtname.[ReadOnly] = True
            txtlocation.[ReadOnly] = True
            txtname.ForeColor = System.Drawing.Color.Blue
            txtlocation.ForeColor = System.Drawing.Color.Blue
        Next
    End If
End Sub



Hope this helps.

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18 comments:

Anonymous said...

that was really grat .. awsome.. jst awsom..
infact .. m newbie ,, nn i cd't eva expect tat as i ld run this code,, it ld run widout any exception ..

Nnn Mr Amit ,, u did it ..


Anonymous said...

Thanks Amit


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Anonymous said...

In this article the code for delete and update is done with asp.net. but can u please provide me the c# code for update and delete button.
when we check on check box the name and location fields are become updatable mode. then the user enter some txt, now we have to update that text into database. can u plz provide that code for me my email id is:hemanth43@gmail.com


Anonymous said...

Thanks..helped me a lot...


Anonymous said...

thanxxx after searching 2 hours i got the best code


Anonymous said...

it's very nice


Anonymous said...

This is great, an example that is very clear and in the correct languages. It was extremely useful Bev


Anonymous said...

fudu...... BM


Shiv said...

Thanks Amit.


Anonymous said...

Unquestionably, I love it, useful and well-founded thoughts. Make sure you come up with more fascinating content in your.


Anonymous said...

Absolutely, I love it, important and well-founded thoughts. Remember to create more appealing content articles in your.


Anonymous said...

Hi Amitji,
I need your favour please do let me know that is how to update selected rows in database using Gridview checkbox. and also i want to get seleted checkbox should be checked when i get refresh the page.
i shall be ever remain your grateful if u help out.

regards
Santa
santalai@rediffmail.com


Kappal Vyabari said...

i want to connect the database using connection string.....wat are the changes shld i do in the above coding...

regards
karthik


amiT jaiN said...

@Kappal Vyabari:

Hi kappal,

Read Edit Update Multiple Records/Rows In Gridview With Checkbox .. to know how to use connection string with gridview


Anonymous said...

Reakky thank you so much
it helps true


Mansoob said...

can u please sed me c# code for the same example but the problem is that i have grid view and retrieve data from database can u do it ? plz help i want it badly.
mail me on mansoob.baig@gmail.com


amiT jaiN said...

@Mansoob: You can download source from download link at the end of post and i too have used database in this example


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