How to select all run time generated Check Box.

How to select all run time generated Check Box.

Server Side Code in C#

//This function will fetch all the controls in the page

//you can make a filter based on control you want using

//"UnderlyingSystemType.Name" property

//Here recursive function used to get into controls inside controls

private void CheckBoxSelection(ControlCollection ctl, bool chkFlg)

{

CheckBox chkBox;

foreach (Control con in ctl)

{

if (con.GetType().UnderlyingSystemType.Name == "CheckBox")

{

chkBox = (CheckBox)Page.FindControl("UserControl").FindControl(con.ID);

chkBox.Checked = chkFlg;

}

if (con.HasControls())

{

CheckBoxSelection(con.Controls, chkFlg, chkIsModel);

}

}

}

//Same way you can get the controls value

private void GetSelectedCheckBoxValue(ControlCollection ctl)

{

ArrayList arrSelectedValue = new ArrayList();

CheckBox chk1;

foreach (Control con in ctl)

{

if (con.GetType().UnderlyingSystemType.Name == "CheckBox")

{

chk1 = (CheckBox)Page.FindControl("UserControl").FindControl(con.ID);

if (chk1.Checked)

arrSelectedValue.Add(con.ID);

}

if (con.HasControls())

{

GetSelectedCheckBoxValue(con.Controls);

}

}

}

Client Side Code in JavaScript supported by IE, Netscape and Mozilla

function CheckBoxSelection(flg)

{

// This line gives all the "Input" control in a page

var chk = window.document.getElementsByTagName("Input");

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

{

// based on the ID prefix you can put condition

if (chk[i].id.indexOf("chk") != -1)

{

if (flg == "false")

{

chk[i].checked = false;

}

else

{

chk[i].checked = true;

}

}

}

}

Call Java script function from Code behind

rdoSelectAll.Attributes.Add("OnClick", "CheckBoxSelection('true')");

rdoClearAll.Attributes.Add("OnClick", "CheckBoxSelection('false')");

Note: rdoSelectAll and rdoClearAll is radio button controls

Generate runtime Check Box controls

private void GenerateModelTable(string[] modelNames)

{

Table tblModel = new Table();

for (int count = 0; count < modelNames.Length; count++)

{

TableRow trModel = new TableRow();

TableCell tcChkModel = new TableCell();

TableCell tcModel = new TableCell();

CheckBox chkModel = new CheckBox();

chkModel.ID = "chk" + "_" + modelNames[count];

tcChkModel.Controls.Add(chkModel);

tcModel.Text = modelNames[count];

trModel.Controls.Add(tcChkModel);

trModel.Controls.Add(tcModel);

tblModel.Controls.Add(trModel);

}

pnlModel.Controls.Add(tblModel);

}