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How to assign methods to a dynamic created Gridview?

I have the following class which is the class for creating a gridview dynamic:
public class DynamicGridViewImageButtonTemplate : ITemplate
{
string _ColName;
DataControlRowType _rowType;
int _Count;
int _Kind;
public DynamicGridViewImageButtonTemplate(string ColName, DataControlRowType RowType, int Kind)
{
_ColName = ColName;
_rowType = RowType;
_Kind = Kind;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.DataRow:
if (_Kind == 0)
{
Label lbl = new Label();
lbl.DataBinding += new EventHandler(this.lbl_DataBind);
container.Controls.Add(lbl);
}
else
if (_Kind == 1)
{
ImageButton vImageButton = new ImageButton();
vImageButton.ID = "btnGetVoucher";
vImageButton.CommandArgument = string.Format("<%# Eval({0}) %>", "Voucher");
vImageButton.CssClass = "divButton";
vImageButton.Height = 25;
vImageButton.Width = 25;
vImageButton.Command += new CommandEventHandler(btnGetVoucher_Command);
vImageButton.DataBinding += new EventHandler(this.imgBtn_DataBind);
container.Controls.Add(vImageButton);
}
break;
default:
break;
}
}
and the following c# code for assigning methods runtime to the imagebutton which I have created in a column:
protected void btnGetVoucher_Command(object sender, CommandEventArgs e)
{
ImageButton btn = sender as ImageButton;
}
protected void gridview_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
ImageButton vImageButton = (ImageButton)e.Row.FindControl("btnGetVoucher");
vImageButton.Command += new CommandEventHandler(btnGetVoucher_Command);
}
}
and the creating of the gridcolumn is as follows:
GridView vGridView = new GridView();
vGridView.RowCreated += new GridViewRowEventHandler(gridview_RowCreated);
vTemplateField = new TemplateField();
vTemplateField.HeaderTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.Header, 0);
vTemplateField.ItemTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.DataRow, 1);
vGridView.Columns.Add(vTemplateField);
And at last the databind here:
private void imgBtn_DataBind(Object sender, EventArgs e)
{
ImageButton btn = (ImageButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
btn.CommandArgument = DataBinder.Eval(row.DataItem, "Voucher").ToString();
}
But I can't step into the method btnGetVoucher_Command :-( I think that everything has been made correctly - but there must be something I have missed somewhere...
I can access the button in my Row_Created routine - but afterwards not use the GetVoucherCommand :-( the event is not fired :-(
So my question is why can't I step into that routine?
Thanks in advance,
Michael
Update:
The full class is here...
public class DynamicGridViewTextTemplate : ITemplate
{
string _ColNameText;
DataControlRowType _rowType;
public DynamicGridViewTextTemplate(string ColNameText, DataControlRowType RowType)
{
_ColNameText = ColNameText;
_rowType = RowType;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColNameText + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
ImageButton vImageButton = new ImageButton();
vImageButton.ID = "btnGetVoucher";
vImageButton.ImageUrl = "~/Images/Icons/icons8-download-from-the-cloud-50.png";
vImageButton.PostBackUrl = "#DownloadVoucher";
vImageButton.CommandArgument = string.Format("<%# Eval({0}) %>", "Voucher");
vImageButton.ToolTip = "Se og download bilag";
vImageButton.CssClass = "divButton";
vImageButton.Height = 25;
vImageButton.Width = 25;
vImageButton.DataBinding += new EventHandler(this.imgBtn_DataBind);
vImageButton.CommandName = "DownloadVoucher";
vImageButton.Command += new CommandEventHandler(btnGetVoucher_Command);
container.Controls.Add(vImageButton);
break;
default:
break;
}
}
private void imgBtn_DataBind(Object sender, EventArgs e)
{
ImageButton btn = (ImageButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
btn.CommandArgument = DataBinder.Eval(row.DataItem, _ColNameText).ToString();
}
}
public class DynamicGridViewImageButtonTemplate : ITemplate
{
string _ColNameText;
DataControlRowType _rowType;
public DynamicGridViewImageButtonTemplate(string ColNameText, DataControlRowType RowType)
{
_ColNameText = ColNameText;
_rowType = RowType;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColNameText + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
ImageButton vImageButton = new ImageButton();
vImageButton.ID = "btnGetVoucher";
vImageButton.ImageUrl = "~/Images/Icons/icons8-download-from-the-cloud-50.png";
vImageButton.PostBackUrl = "#DownloadVoucher";
vImageButton.CommandArgument = string.Format("<%# Eval({0}) %>", "Voucher");
vImageButton.ToolTip = "Se og download bilag";
vImageButton.CssClass = "divButton";
vImageButton.Height = 25;
vImageButton.Width = 25;
vImageButton.DataBinding += new EventHandler(this.imgBtn_DataBind);
vImageButton.CommandName = "DownloadVoucher";
vImageButton.Command += new CommandEventHandler(btnGetVoucher_Command);
container.Controls.Add(vImageButton);
break;
default:
break;
}
}
protected void btnGetVoucher_Command(object sender, CommandEventArgs e)
{
ImageButton btn = sender as ImageButton;
}
private void imgBtn_DataBind(Object sender, EventArgs e)
{
ImageButton btn = (ImageButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
btn.CommandArgument = DataBinder.Eval(row.DataItem, _ColNameText).ToString();
}
}
The events is here...
protected void gridview_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
ImageButton vImageButton = (ImageButton)e.Row.FindControl("btnGetVoucher");
}
}
protected void gridview_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
ImageButton vImageButton = (ImageButton)e.Row.FindControl("btnGetVoucher");
}
}
protected void gridview_RowCommand(object sender, CommandEventArgs e)
{
if (e.CommandName == "DownloadVoucher")
{
int index = Convert.ToInt32(e.CommandArgument);
GridView grid = sender as GridView;
GridViewRow row = grid.Rows[index];
ImageButton vImageButton = (ImageButton)row.FindControl("btnGetVoucher");
}
}
The creating of the gridview is here...
GridView vGridView = new GridView();
vGridView.AutoGenerateColumns = false;
vGridView.ShowHeaderWhenEmpty = true;
vGridView.ShowHeader = true;
vGridView.HeaderStyle.BackColor = System.Drawing.ColorTranslator.FromHtml("#C6E0B4");
vGridView.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;
vGridView.RowCreated += new GridViewRowEventHandler(gridview_RowCreated);
vGridView.RowDataBound += new GridViewRowEventHandler(gridview_RowDataBound);
vGridView.RowCommand += new GridViewCommandEventHandler(gridview_RowCommand);
vTemplateField = new TemplateField();
vTemplateField.HeaderTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.Header);
vTemplateField.ItemTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.DataRow);
vGridView.Columns.Add(vTemplateField);

micheal.
in this code, i can't see event handling code in InstantiateIn method.
ex) like this.
lbl.DataBinding += new EventHandler(this.btnGetVoucher_Command);
DynamicGridViewTextTemplate class constructor args are 3 count.
but, when using DynamicGridViewTextTemplate constructor,
used only 2 count args.
where is kind?
try it.
vTemplateField.HeaderTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.Header, 0);
vTemplateField.ItemTemplate = new DynamicGridViewImageButtonTemplate("Voucher", DataControlRowType.DataRow, 1);
best example in msdn
https://learn.microsoft.com/ko-kr/dotnet/api/system.web.ui.webcontrols.templatefield.-ctor?view=netframework-4.8
I hope this answer helps you.

Creating Row Dynamically based on selecting dropdownlist

I written a code for creating dynamically table. the table containing textbox and Dropdownlist.
i try to do creating table based on selected dropdowlist value when i select dropdown list like "Splitter1:5" than Table row will creating 5 . first time it has done successfully when i try to second time i did not get the value of dropdown list.
i am sharing my code please help me.
html code:
<body>
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="ddlTextBoxes" runat="server">
<asp:ListItem Value="2" Text="Splitter1:2" />
<asp:ListItem Value="4" Text="Splitter1:4" />
<asp:ListItem Value="8" Text="Splitter1:8" />
<asp:ListItem Value="1" Text="Joint" />
<asp:ListItem Value="0" Text="OLT" />
</asp:DropDownList>
<asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click" /><br />
<asp:Panel ID="container" runat="server" Visible="false"> <asp:Button ID="btnSubmit" runat="server" Text="Process" OnClick="Submit" /></asp:Panel>
</div>
</form>
</body>
behind code:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class testform : System.Web.UI.Page
{
DropDownList DDL; int i;
ArrayList arry_value = new ArrayList(); object[] obj;
Panel pn;
protected void Page_Load(object sender, EventArgs e)
{
//ViewState["droplist"] = obj;
}
protected void btnAdd_Click(object sender, EventArgs e)
{
int numOfTxt = Convert.ToInt32(ddlTextBoxes.SelectedItem.Value);
// DataTable dt = new DataTable();
//dt.Columns.Add("First Textbox");
// dt.Columns.Add("Dropdownlist");
// dt.Columns.Add("Last Textbox");
var table = new Table();
for (i = 0; i < numOfTxt; i++)
{
var row = new TableRow();
var cell = new TableCell();
// var thr = new TableHeaderRow();
// var heading = new TableHeaderCell();
//TableHeaderCell thPNumber = new TableHeaderCell();
// cell.Attributes.Add("runat", "server");
TextBox textbox = new TextBox();
textbox.ID = "Textbox" + i;
textbox.Text = "text" + i;
textbox.Width = new Unit(180);
TextBox textbox1 = new TextBox();
textbox1.ID = "Textbox1" + i;
textbox1.Text = "text1" + i;
textbox1.Width = new Unit(180);
DDL = new DropDownList();
DDL.ID = "DDL1" + i;
DDL.Items.Add("Select Splitter");
DDL.Items.Add(new ListItem("Splitter1:2", "2"));
DDL.Items.Add(new ListItem("Splitter1:4", "4"));
DDL.Items.Add(new ListItem("Splitter1:8", "8"));
DDL.Items.Add(new ListItem("Joint", "1"));
DDL.Items.Add(new ListItem("ONT", "0"));
DDL.AutoPostBack = true;
DDL.TextChanged += dropDown_TextChanged;
// dt.Rows.Add(textbox1);
cell.Controls.Add(textbox1);
cell.Controls.Add(DDL);
cell.Controls.Add(textbox);
//dt.Rows.Add(DDL);
//string val = DDL.SelectedItem.Value;
// string val = DDL.SelectedValue;
// dt.Rows.Add(textbox);
row.Cells.Add(cell);
// row.Cells.Add(thr);
table.Rows.Add(row);
arry_value.Add(DDL.ID);
foreach (object obj in arry_value)
{
var idcollection = new string[] { obj.ToString() };
}
//for (int i1 = 0; i1 < arry_value.Count; i1++)
//{
// //var empty1 = new string[] {arry_value[i].ToString() };
// obj = new object[] { arry_value[i]};
//}
//string count += (DDL.ID.SelectedItem.Value).toString();
}
pn = new Panel();
pn.ID = "pan" + i + 1;
this.form1.Controls.Add(pn);
container.Visible = true;
Button btnSubmit = new Button();
btnSubmit.ID = "btnSubmit";
btnSubmit.Text = "Processone";
btnSubmit.Click += new System.EventHandler(Submit);
container.Controls.Add(table);
//pn.Controls.Add(btnSubmit);
// container.Controls.AddAt(0, table);
}
void dropDown_TextChanged(object sender, EventArgs e)
{
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Record Inserted Successfully')", true);
}
protected void Submit(object sender, EventArgs e)
{
//Student stud = (Student)ViewState["CurrentStudent"];
//DropDownList ddl = (DropDownList)container.FindControl("DDL1"+i);
// int numOfTxt = 4;
int numOfTxt = 5;
string drpvalue;
for (int j = 0; j < Convert.ToInt32(ddlTextBoxes.SelectedItem.Value); j++)
{
drpvalue = "DDL12" + i + ".SelectedItem.Value";
//int te = Convert.ToInt32(drpvalue);
// numOfTxt += Convert.ToInt32(DDL120.SelectedItem.Value);
}
//int numOfTxt = Convert.ToInt32(ddlTextBoxes.SelectedItem.Value);
var table = new Table();
DataTable dt = new DataTable();
for (int i = 0; i < numOfTxt; i++)
{
var row = new TableRow();
var cell = new TableCell();
// dt.Columns.Add("TextOne1");
cell.Attributes.Add("runat", "server");
TextBox textbox = new TextBox();
textbox.ID = "Textbox" + i;
textbox.Text = "text" + i;
textbox.Width = new Unit(180);
TextBox textbox1 = new TextBox();
textbox1.ID = "Textbox1" + i;
textbox1.Text = textbox1.Text;
textbox1.Width = new Unit(180);
DropDownList DDLs = new DropDownList();
DDLs.ID = "DDL12" + i;
// count= Convert.ToInt32( DDL.ID = "DDL12" + i);
DDLs.Items.Add("Select Splitter");
DDLs.Items.Add(new ListItem("Splitter1:2", "2"));
DDLs.Items.Add(new ListItem("Splitter1:4", "4"));
DDLs.Items.Add(new ListItem("Splitter1:8", "8"));
DDLs.Items.Add(new ListItem("Joint", "1"));
DDLs.Items.Add(new ListItem("ONT", "0"));
//DDLs.AutoPostBack = true;
DDLs.TextChanged += dropDown_TextChanged;
// dt.Rows.Add(textbox1);
cell.Controls.Add(textbox1);
// dt.Columns.Add("ListDropdown");
cell.Controls.Add(DDLs);
// dt.Columns.Add("Textbodx");
cell.Controls.Add(textbox);
row.Cells.Add(cell);
table.Rows.Add(row);
}
Button btnSubmit = new Button();
btnSubmit.ID = "btnSubmit";
btnSubmit.Text = "Process";
btnSubmit.Click += new System.EventHandler(Submit);
Panel pans = new Panel();
pans.ID = "panss";
this.form1.Controls.Add(pans);
pans.Controls.AddAt(0, table);
pans.Controls.Add(btnSubmit);
pans.Visible = true;
//pn.Visible = true;
}
}

Prevent to add a column twice to the datagridview

I have a MetroFramework.Controls.MetroGrid in my windows forms application. In frmPatientList_Shown I call a method loadPatientList(). I also add a DataGridViewLinkColumn after binding the dtb to the gridview.
Clicking the link opens a new form where I update Patient data, and on formEditPatient.FormClosed I call the loadPatientList() method again, This time the DataGridViewLinkColumn is being added twice. How can I prevent to Add the link twice ?
Here is my code:
private void frmPatientList_Shown(object sender, EventArgs e)
{
loadPatientList();
}
private void loadPatientList()
{
DataTable dtb = Patient.getPatientList();
bindToGrid(dtb);
}
private void bindToGrid(DataTable dtb)
{
dataGridView1.DataSource = null;
using (dtb)
{
dataGridView1.DataSource = dtb;
dataGridView1.AutoGenerateColumns = false;
dataGridView1.AllowUserToAddRows = false;
dataGridView1.Columns[0].Name = "PatientId";
dataGridView1.Columns[0].HeaderText = "ID";
dataGridView1.Columns[0].DataPropertyName = "PatientId";
// more code here.
}
DataGridViewLinkColumn EditLink = new DataGridViewLinkColumn();
EditLink.UseColumnTextForLinkValue = true;
EditLink.HeaderText = " Edit ";
EditLink.DataPropertyName = "lnkColumn";
EditLink.LinkBehavior = LinkBehavior.SystemDefault;
EditLink.Text = "Edit";
dataGridView1.Columns.Add(EditLink);
}
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 8 && e.RowIndex >= 0)
{
using (frmEditPatient formEditPatient = new frmEditPatient(id))
{
formEditPatient.FormClosed += FormEditPatient_FormClosed;
formEditPatient.ShowDialog();
}
}
}
private void FormEditPatient_FormClosed(object sender, FormClosedEventArgs e)
{
loadPatientList();
}
Any help would be appreciated.

You check if the column exist,
bool hasEditColumn = false;
foreach (DataGridViewColumn item in dataGridView1.Columns)
{
if (item.GetType() == typeof(DataGridViewLinkColumn) && item.HeaderText == "Edit")
{
hasEditColumn = true;
break;
}
}
if (!hasEditColumn)
{
DataGridViewLinkColumn EditLink = new DataGridViewLinkColumn();
EditLink.UseColumnTextForLinkValue = true;
EditLink.HeaderText = "Edit";
EditLink.DataPropertyName = "lnkColumn";
EditLink.LinkBehavior = LinkBehavior.SystemDefault;
EditLink.Text = "Edit";
dataGridView1.Columns.Add(EditLink);
dataGridView1.Refresh();
}

In frmPatientList_Shown function you add the link
private void frmPatientList_Shown(object sender, EventArgs e)
{
DataGridViewLinkColumn EditLink = new DataGridViewLinkColumn();
EditLink.UseColumnTextForLinkValue = true;
EditLink.HeaderText = " Edit ";
EditLink.DataPropertyName = "lnkColumn";
EditLink.LinkBehavior = LinkBehavior.SystemDefault;
EditLink.Text = "Edit";
dataGridView1.Columns.Add(EditLink);
loadPatientList();
}
In bindToGrid function you do not add the link
private void bindToGrid(DataTable dtb)
{
dataGridView1.DataSource = null;
using (dtb)
{
dataGridView1.DataSource = dtb;
dataGridView1.AutoGenerateColumns = false;
dataGridView1.AllowUserToAddRows = false;
dataGridView1.Columns[0].Name = "PatientId";
dataGridView1.Columns[0].HeaderText = "ID";
dataGridView1.Columns[0].DataPropertyName = "PatientId";
// more code here.
}
//DataGridViewLinkColumn EditLink = new DataGridViewLinkColumn();
//EditLink.UseColumnTextForLinkValue = true;
//EditLink.HeaderText = " Edit ";
//EditLink.DataPropertyName = "lnkColumn";
//EditLink.LinkBehavior = LinkBehavior.SystemDefault;
//EditLink.Text = "Edit";
//dataGridView1.Columns.Add(EditLink);
}
I hope it will help you.

Event on dynamically created checkbox asp.net

I started to programming with asp.net, I have a table with some checkboxes.
The problem is, I can't create static tables, because this action is linked with some parameters. Anyway.. When I click on the First checkbox I want to invert the other checkboxes in this table.
How can I catch this event?
<%# Page Title="Fragebogen generieren" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Generate.aspx.cs" Inherits="MAXXREC.Generate" SmartNavigation="True" %>
<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
<h2><%: Title %>.</h2><br /> <br />
<asp:Panel id="pCustomize" runat="server"></asp:Panel> <br /><br />
<asp:Button id="btnSave" class="btn btn-default" Text="Save" runat="server" OnClick="btnSave_Click"></asp:Button>
</asp:Content>
private bool SelectTheData()
{
dtQuestionBlock = taQuestionBlock.GetData();
try
{
int rows = dtQuestionBlock.Rows.Count;
for (int i = 0; i < rows; i++)
{
UpdatePanel updatePanel = new UpdatePanel();
updatePanel.ID = "up" + dtQuestionBlock.Rows[i][1].ToString();
Label lbl = new Label();
lbl.ID = "lbl" + dtQuestionBlock.Rows[i][1].ToString();
lbl.CssClass = "h4";
lbl.Attributes.Add("runat", "server");
lbl.Text = dtQuestionBlock.Rows[i][1].ToString();
pCustomize.Controls.Add(lbl);
pCustomize.Controls.Add(new Literal() { ID = "br" + i, Text = "<br /><br />" });
HtmlTable tbl = new HtmlTable();
tbl.Width = "100%";
tbl.Attributes.Add("class", "table");
tbl.ID = "htmltbl" + dtQuestionBlock.Rows[i][1].ToString();
HtmlTableRow htr = new HtmlTableRow();
HtmlTableCell hcella = new HtmlTableCell();
CheckBox acb = new CheckBox();
acb.ID = "cb" + dtQuestionBlock.Rows[i]["name"].ToString();
//acb.CheckedChanged += new EventHandler(cb_CheckedChanged);
hcella.Width = "30px";
hcella.Controls.Add(acb);
htr.Cells.Add(hcella);
HtmlTableCell hcellf = new HtmlTableCell();
hcellf.InnerText = "Frage";
hcellf.Style.Add("font-weight", "bold");
hcellf.Style.Add("font-size", "15px");
htr.Cells.Add(hcellf);
tbl.Rows.Add(htr);
string cont = dtQuestionBlock.Rows[i]["ID"].ToString();
dtQuestion = taQuestion.GetDataBy1(Convert.ToInt32(cont));
nCountTables = i;
for (int j = 0; j < dtQuestion.Rows.Count; j++)
{
HtmlTableRow tr = new HtmlTableRow();
HtmlTableCell cell = new HtmlTableCell();
acb = new CheckBox();
acb.ID = "cb" + dtQuestion.Rows[j]["content"].ToString();
cell.Width = "30px";
cell.Controls.Add(acb);
tr.Cells.Add(cell);
cell = new HtmlTableCell();
cell.InnerText = dtQuestion.Rows[j]["content"].ToString();
cell.ID = "cell" + j + "_" + dtQuestion.Rows[j]["content"].ToString();
tr.Cells.Add(cell);
tbl.Rows.Add(tr);
}
updatePanel.ContentTemplateContainer.Controls.Add(tbl);
//tbl.Visible = false;
pCustomize.Controls.Add(updatePanel);
pCustomize.Controls.Add(new Literal() { ID = "br" + i + rows, Text = "<br />" });
}
return true;
}
catch (Exception ex)
{
Type cstype = ex.GetType();
ClientScriptManager cs = Page.ClientScript;
String cstext = ex.ToString();
cs.RegisterStartupScript(cstype, "PopupScript", cstext, true);
return false;
}
finally
{
taQuestionBlock.Dispose();
dtQuestionBlock.Dispose();
}
}

you can try this code
List<CheckBox> lstChckBox;
protected void Page_Load(object sender, EventArgs e)
{
// you can create controls programaticaly or html page, doesnt important
//only you should know controls ID and all controls share same checked event
CheckBox chc1 = new CheckBox();
chc1.CheckedChanged += new EventHandler(chck_CheckedChanged);
CheckBox chc2 = new CheckBox();
chc2.CheckedChanged += new EventHandler(chck_CheckedChanged);
CheckBox chc3 = new CheckBox();
chc3.CheckedChanged += new EventHandler(chck_CheckedChanged);
// Now, you can create a List so event is fired, you can catch which controls checked or not
lstChckBox = new List<CheckBox>();
lstChckBox.Add(chc1);
lstChckBox.Add(chc2);
lstChckBox.Add(chc3);
}
void chck_CheckedChanged(object sender, EventArgs e)
{
CheckBox checkBox = (sender as CheckBox);
foreach (CheckBox item in lstChckBox)
{
if (item != checkBox)
{
item.CheckedChanged -= new EventHandler(chck_CheckedChanged);
item.Checked = !checkBox.Checked;
item.CheckedChanged += new EventHandler(chck_CheckedChanged);
}
}
}

Bind ListView to dynamic Accordion

In the page_load I'm creating dynamically the headers using data from SpGetCompanies, which is working fine. Then I'm trying to add a ListView to every dynamically created accordion pane with the data source SpSearchPublicationsTop1.
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
SQLConnection dataAccessor = new SQLConnection();
dtCompanies = dataAccessor.SpGetCompanies();
if (dtCompanies.Rows.Count > 0)
{
AccordionPane pn;
Label lblContent;
int j = 0;
for (int i = 0; i < dtCompanies.Rows.Count; i++)
{
lblHeader = new Label();
lblHeader.Text = dtCompanies.Rows[i][1].ToString();
lblContent = new Label();
lblContent.Text = "Hallo";
pn = new AccordionPane();
pn.ID = "Pane" + j;
pn.HeaderContainer.Controls.Add(lblHeader);
ListView view = new ListView();
view.LayoutTemplate = new LayoutTemplate();
view.ItemTemplate = new ItemTemplate();
//view = (ListView)FindControl("lv_result");
view.DataSource = SQLConnection.SpSearchPublicationsTop1(lblHeader.Text);
view.DataBind();
#region commented stuff
//dt2 = SQLConnection.SpSearchPublicationsTop1(lblHeader.Text);
//if (dt2.Rows.Count > 0)
//{
// //view = (ListView)FindControl("lv_result");
// //column1.Text = dt2.Rows[0][0].ToString();
// //view.Columns.Add(column1);
// //Label lblAcronym = new Label();
// //lblAcronym.Text = dt2.Rows[0][0].ToString();
// //view.DataSource = lblAcronym;
// view.DataSource = dt2;
// view.DataBind();
//}
//listView1.Columns.Add(column1);
//foreach (DataRow dr in dt2.Rows)
//{
// ListViewItem lvi = new ListViewItem(dr[0].ToString()); //1.st column in datatable, instead of 0 you can write column`s name like: ["CustomerID"]
// lvi.SubItems.Add(dr[1].ToString()); //2nd column from datatable
// view.Items.Add(lvi);
//}
//this.Controls.Add(view);
//ListView lv_result = new ListView();
////lv_result.ItemTemplate = new ItemTemplate();
//lv_result.ID = "lvpane" + i;
//lv_result.Visible = true;
//dt2 = SQLConnection.SpSearchPublicationsTop1(lblHeader.Text);
//if (dt2.Rows.Count > 0)
//{
// lv_result.DataSource = dt2;
// lv_result.DataBind();
//}
//var level2 = (ListView)FindControl("lv_result");
//level2.ItemTemplate = view.ItemTemplate;
////level2.DataSource = dt2(e.AccordionItem.DataItemIndex);
////level2.DataBind();
//dt2 = SQLConnection.SpSearchPublicationsTop1(lblHeader.Text);
//if (dt2.Rows.Count > 0)
//{
// level2.DataSource = dt2;
// level2.DataBind();
//}
#endregion
pn.ContentContainer.Controls.Add(view);
//pn.ContentContainer.Controls.Add(lblContent);
Accordion1.Panes.Add(pn);
++j;
}
}
}
}
private class LayoutTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
var ol = new HtmlGenericControl("ol");
var li = new HtmlGenericControl("li") { ID = "itemPlaceholder" };
ol.Controls.Add(li);
container.Controls.Add(ol);
}
}
private class ItemTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
var li = new HtmlGenericControl("li");
li.DataBinding += DataBinding;
container.Controls.Add(li);
}
public void DataBinding(object sender, EventArgs e)
{
var container = (HtmlGenericControl)sender;
var dataItem = ((ListViewDataItem)container.NamingContainer).DataItem;
container.Controls.Add(new Literal() { Text = dataItem.ToString() });
}
}
With the code above the headers from the accordion are working fine, but instead of the ListView data in the content I'm only getting: System.Data.DataRowView
What am I doing wrong?

You are missing a call to:
DataBinder.Eval(container.DataItem, "YouBindingProperty");
Example:
public void DataBinding(object sender, EventArgs e)
{
var genericControl = (HtmlGenericControl)sender;
var container = (ListViewDataItem)container.NamingContainer;
container.Controls.Add(new Literal() { Text = DataBinder.Eval(container.DataItem, "YouBindingProperty") });
}