Asp.net, Nested Grid

Question

0.00/5 (No votes)

See more:

Hi all, I have a gridiview, called parent gridview, under parent one more gridview is there called as child Gridview. Under Parent gridview I have an image button called Expand/Collapse. If i click on Expand the corresponding row will expand and show the innter gridview. Suppose i open more no of inner grid's, now i want to close all the inner gridviews at a time. By using one image buttion at parent gridview header. Plz give me script idea to collapse all inner gridviews at a time. Can any body help me.

The gridview code

Sorry for the English, thanks in advance

Murthy

ASP.NET

<asp:GridView ID="grvRecords" runat="server" AutoGenerateColumns="false" Font-Bold="True"
                                    Font-Names="Trebuchet MS" Font-Size="10px" AllowPaging="True" Font-Underline="False"
                                    OnRowCommand="grvRecords_RowCommand" OnPageIndexChanging="grvRecords_PageIndexChanging"
                                    AllowSorting="True" OnSorting="grvRecords_Sorting" PageSize="10"                                     OnRowDataBound="grvRecords_RowDataBound" Width="98%" >
                                    <columns>
                                    <asp:TemplateField>
                                            <HeaderTemplate>
                                                <input id="chkAllItems" type="checkbox"  önclick="CheckAllDataGridCheckBoxes('chkItemChecked',document.forms[0].chkAllItems.checked)"
                                                    value="Check">
                                            </HeaderTemplate>
                                            <itemtemplate>
                                                <asp:CheckBox ID="chkBulk" runat="server" Width="30px" AutoPostBack="False">
                                            </itemtemplate>
                                        
                                       <asp:TemplateField ItemStyle-Width="20px">
                                            <itemtemplate>
                                                <asp:Image runat="server" ID="img1" ImageUrl="images/Expand.GIF" />
                                            </itemtemplate>
                                        
                                        
                                        
                                        <asp:TemplateField Visible="false">
                                            <itemtemplate>
                                                <asp:Label ID="lblCodingId" runat="server" Text='<%#Eval("iCodingId") %>'>
                                            </itemtemplate>
                                        
                                                                                <asp:BoundField DataField="UploadDate" HeaderText="UploadDate" SortExpression="UploadDate" />
                                        <asp:BoundField DataField="vcRequest" HeaderText="Request" />
                                        <asp:BoundField DataField="vcStudentName" HeaderText="PName" />
                                                                                <asp:BoundField DataField="DOB" HeaderText="DOB" />
                                        <asp:BoundField DataField="DOJ" HeaderText="JOin.Date" />
                                        <asp:BoundField DataField="Course" HeaderText="Course" />
                                        <asp:TemplateField HeaderText="Category">
                                            <itemtemplate>
                                                <asp:Label ID="lblCategory" runat="server" Text='<%# Eval("Category")%>'>
                                                <asp:Literal runat="server" ID="lit1" Text="<tr id="trCollapseGrid" style="display:none"><td colspan="2"><td colspan="8" align="right">" />
                                                <asp:GridView ID="gvChild" AutoGenerateColumns="False" runat="server" EnableViewState="False" Width="100%"
                                                    ForeColor="#006666" HeaderStyle-HorizontalAlign="Center"  >
                                                    <rowstyle backcolor="#EFF3FB" />
                                                    <alternatingrowstyle backcolor="#EFF3FB" />
                                                    <columns>
                                                                                             <itemtemplate>
                                                        <asp:LinkButton ID="lnk1" runat ="server" Text='<%#Eval("RegNo") %>' CommandName="RegNo" CommandArgument='<%#Eval("RegNo") %>' >
                                                        </itemtemplate>
                                                        --%>
                                                        <asp:BoundField DataField ="vcCPT" HeaderText ="CPT" ItemStyle-HorizontalAlign="Center" />
                                                        <asp:BoundField HeaderText="Address1" DataField="Address1" ItemStyle-HorizontalAlign="Center" >
                                                        
                                                        <asp:BoundField HeaderText="Address2" DataField="Address2" ItemStyle-HorizontalAlign="Center" >
                                                        
                                                        <asp:BoundField HeaderText="Phone1" DataField="Phone1" ItemStyle-HorizontalAlign="Center" >
                                                        
                                                        <asp:BoundField HeaderText="Phone2" DataField="Phone2" ItemStyle-HorizontalAlign="Center" >
                                                        
                                                       <HeaderText="Remarks" DataField="vcRemarks" ItemStyle-HorizontalAlign="Center"  >
                                                        
                                                    </columns>
                                                    <HeaderStyle BackColor="#82c0ff" Font-Bold="True" ForeColor="White" />
                                                
                                                <asp:Literal runat="server" ID="lit2" Text="</td></td></tr>" />
                                            </itemtemplate>
                                        
                                    </columns>
                                    <HeaderStyle Font-Bold="True" Font-Underline="False" ForeColor="#0033CC" BackColor="#6699FF"
                                        Font-Names="Trebuchet MS" Font-Size="12px" />

C# code

C#

protected void grvRecords_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        try
        {
        if (e.Row.RowType == DataControlRowType.DataRow)
            {
                DataTable dtChildTable = BindChildGridview();
                DataTable dtCloneChildTable = dtChildTable.Clone();
                //Image img = (Image)e.Row.Cells[1].FindControl("img1");
                Image img = (Image)e.Row.FindControl("img1");
                Literal ltrl = (Literal)e.Row.FindControl("lit1");
                ltrl.Text = ltrl.Text.Replace("trCollapseGrid", "trCollapseGrid" + e.Row.RowIndex.ToString());
                string str = "trCollapseGrid" + e.Row.RowIndex.ToString();
                e.Row.Cells[1].Attributes.Add("OnClick", "OpenGridTable('" + str + "','" + img.ClientID + "')");
                e.Row.Cells[1].RowSpan = 1;
                System.Web.UI.WebControls.GridView gvChild = (System.Web.UI.WebControls.GridView)e.Row.FindControl("gvChild");
                Label lbliPatId = (System.Web.UI.WebControls.Label)e.Row.FindControl("lbliPatientId");
                //DataRow[] gvChildRows = dtChildTable.Select("iPatientId = " + e.Row.Cells[0].Text);
                DataRow[] gvChildRows = dtChildTable.Select("iPatientId = " + Convert.ToInt32(lbliPatId.Text));
                foreach (DataRow gvChildRow in gvChildRows)
                {
                    dtCloneChildTable.ImportRow(gvChildRow);
                }
                gvChild.DataSource = dtCloneChildTable;
                gvChild.DataBind();
            }
        }

Script for Expand individual inner gridview

JavaScript

<script language="javascript" type="text/javascript">
        //debugger;
        function OpenGridTable(trRow, imgId) {
            object = document.getElementById(trRow);
            if (object.style.display == "none") {
                object.style.display = "";
                document.getElementById(imgId).src = "Images/Collapse.gif";
            }
            else {
                object.style.display = "none";
                document.getElementById(imgId).src = "Images/Expand.gif";
            }
        }
    </script>

Posted 9-Jul-12 23:37pm

Murthy_RDV

Updated 10-Jul-12 0:23am

Sandeep Mewara

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

_Amy · Answer 1 · 2012-07-10T00:57:00

Hi,
Set the command name to the buttion at parent gridview header as "CollapsAll". Handle "CollapsAll" command as follows:

C#

protected void gvEmpDetails_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "CollapsAll")
        {
            fnCollapsAll();
        }
    }

Now in fnCollapsAll set the all child grid-view data source to null as follows:

C#

private void fnCollapsAll(){
    foreach(DataRow row in grvRecords.Rows){
          GridView gv=(GridView)row.FindControl("gvChild");
          gv.DataSource=null;
          gv.DataBind();
          //If you don't want to set the datasource as null just make it 
          //gv.Visible = false;
    }
}

All the best.
--Amit