GridView (Multiple check Boxes Selection / Get Checked Check Boxes)

Grid View

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">

<Columns>

<asp:BoundField DataField="Column1" HeaderText="Column" />

<asp:TemplateField HeaderText="TextBox">

<ItemTemplate>

<asp:TextBox ID="txt_TextBox" runat="server"></asp:TextBox>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Select">

<HeaderTemplate>

Select All

<input id="chkAll" onclick="javascript:SelectAllCheckboxes(this);" runat="server"

type="checkbox" />

</HeaderTemplate>

<ItemTemplate>

<asp:CheckBox ID="chk_Selected" runat="server" />

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

JavaScript

<

script language="javascript">

function SelectAllCheckboxes(spanChk){

var oItem = spanChk.children;

var theBox= (spanChk.type=="checkbox") ?

spanChk : spanChk.children.item[0];

xState=theBox.checked;

elm=theBox.form.elements;

for(i=0;i<elm.length;i++)

if(elm[i].type=="checkbox" &&

elm[i].id!=theBox.id)

{

if(elm[i].checked!=xState)

elm[i].click();

}

}

</

script>

Code Behind

string str_Result = "";

for (int i = 0; i < gv_SearchedDocuments.Rows.Count; i++)

{

GridViewRow gv_row = GridView1.Rows[i];

bool isChecked = ((CheckBox)gv_row.FindControl("chk_Selected")).Checked;

if (isChecked)

{

str_Result += GridView1.Rows[i].Cells[0].Text;

TextBox txt_Temp = ((TextBox)gv_row.FindControl("txt_ViewOrder"));

str_Result +=

txt_Temp.Text+"<,br/>";

}

}

lbl_Message.Text = str_Result ;