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POHow to select all checkbox inside a gridview?
 

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  1. POHow to select all checkbox inside a gridview?
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    <p>I want to Check the checkboxes inside a ListView which is Placed inside a Gridview. The Gridview is having many rows and Each row is having a List view with associated recrods. Each row contains a CheckBox called select all. I want to check the checkboxes of the child ListView control which accompanies that particular Row. </p> <p>I have a Server side code from which Im able to do this. but its taking too much time.. ie almost around 1-2 mins to select records if there are more than 1000 records. I want this to be done using a Javascript. how can i achieve this.</p> <p><img src="https://i.stack.imgur.com/eepNb.png" alt="Image"></p> <p>This is the image representing the GridView and ListView. GridView is Groups and Contacts is the ListView When i select the "SelectAll" button in the GridView the Appropriate contacts should be selected.</p> <p>How can I achieve this using Javascript.</p> <p>This is the code of the grid view</p> <pre><code> &lt;asp:GridView ID="GridViewGroups" runat="server" AutoGenerateColumns="False" onrowdatabound="GridViewGroups_RowDataBound" Width="100%" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" onselectedindexchanged="GridViewGroups_SelectedIndexChanged" meta:resourcekey="GridViewGroupsResource1" &gt; &lt;Columns&gt; &lt;asp:TemplateField HeaderText="Groups" meta:resourcekey="TemplateFieldResource1" HeaderStyle-CssClass="tSubHead"&gt; &lt;ItemTemplate&gt; &lt;div align="left" &gt; &lt;asp:Panel ID="PanelContainer" runat="server" Width="100%" meta:resourcekey="PanelContainerResource1" &gt; &lt;asp:Panel ID="PanelHeaderList" runat="server" meta:resourcekey="PanelHeaderListResource1" CssClass="tSubHead2" style="cursor:pointer;"&gt; &lt;asp:ImageButton ID="Image1" runat="server" ImageUrl="../micons/IC_Plus.png" CssClass="tImage" AlternateText="Expand or Collapse" meta:resourcekey="Image1Resource1"/&gt; &lt;asp:Label ID="LabelGrpName_sm" runat="server" Text='&lt;%# string.Format("{0} ({1})", Eval("Grp_Name"),Eval("CountNo")) %&gt;' meta:resourcekey="LabelGrpName_smResource1" /&gt; &lt;/asp:Panel&gt; &lt;div style="float:left;width:200px;" &gt; &lt;asp:HiddenField ID="hfGrpID" runat="server" Value='&lt;%# Eval("Grp_ID") %&gt;' /&gt; &lt;asp:CheckBox ID="CheckBoxSelect" runat="server" AutoPostBack="True" class='&lt;%#Eval("Grp_ID") %&gt;' OnCheckedChanged="GroupCheckChanged" meta:resourcekey="CheckBoxSelectResource1" /&gt; &lt;b&gt; &lt;asp:Label ID="Grp_NameLabel" runat="server" Text="Select All" meta:resourcekey="Grp_NameLabelResource1" /&gt; &lt;/b&gt; &lt;/div&gt; &lt;br /&gt; &lt;p&gt; &lt;asp:Panel ID="PanelGroupsItem" runat="server" Width="100%" meta:resourcekey="PanelGroupsItemResource1" &gt; &lt;asp:Panel ID="MyGroups" runat="server" ScrollBars="Vertical" Height="300px" Width="100%" Visible='&lt;%# GetFlag(Convert.ToInt32(Eval("Grp_ID"))) %&gt;' meta:resourcekey="MyGroupsResource1"&gt; &lt;asp:ListView ID="ListViewContactsInGrp" runat="server" onitemdatabound="ListView1_ItemDataBound" &gt; &lt;LayoutTemplate&gt; &lt;table id="Table1" runat="server" style="width:100%;"&gt; &lt;tr id="Tr1" runat="server"&gt; &lt;td id="Td1" runat="server"&gt; &lt;table ID="itemPlaceholderContainer" runat="server" border="0" style="width:100%;"&gt; &lt;tr id="Tr2" runat="server" style=""&gt; &lt;th id="Th1" runat="server" colspan="2" class="tSubHead2"&gt; Contacts&lt;/th&gt; &lt;/tr&gt; &lt;tr ID="itemPlaceholder" runat="server"&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr id="Tr3" runat="server"&gt; &lt;td id="Td2" runat="server" style=""&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/LayoutTemplate&gt; &lt;ItemTemplate&gt; &lt;tr style=""&gt; &lt;td class="tListViewAlignment" style="width:10px"&gt; &lt;asp:CheckBox ID="chkFlag" runat="server" meta:resourcekey="chkFlagResource1" class='&lt;%#Eval("grp_id") %&gt;' /&gt; &lt;/td&gt; &lt;td class="tListViewAlignment"&gt;&lt;asp:Label ID="LabelContacts" runat="server" Text='&lt;%# Eval("cont_name") %&gt;' meta:resourcekey="LabelContactsResource1"&gt;&lt;/asp:Label&gt; &lt;asp:HiddenField ID="hfGSM" runat="server" Value='&lt;%# Eval("cont_gsm") %&gt;' /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/ItemTemplate&gt; &lt;/asp:ListView&gt; &lt;/asp:Panel&gt; &lt;/asp:Panel&gt; &lt;/p&gt; &lt;asp:CollapsiblePanelExtender ID="CollapsiblePanelExtender1" runat="server" Collapsed="True" TargetControlID="PanelGroupsItem" CollapseControlID="PanelHeaderList" ExpandControlID="PanelHeaderList" ImageControlID="Image1" ExpandedImage="~/micons/IC_minus.png" CollapsedImage="~/micons/IC_Plus.png" SuppressPostBack="True" Enabled="True"&gt; &lt;/asp:CollapsiblePanelExtender&gt; &lt;/asp:Panel&gt; &lt;/div&gt; &lt;/ItemTemplate&gt; &lt;ItemStyle BorderColor="Silver" /&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;HeaderStyle BorderColor="Silver" /&gt; &lt;RowStyle BorderColor="Silver" /&gt; &lt;/asp:GridView&gt; </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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