RadioButtonList In A DataGrid Cell - Can I find the selected button without editing the cell?

E

Empire City

I have an ASP.NET form with a DataGrid and Button. I want to put a
RadioButtonList in a DataGrid cell. I bind it to an ArrayList which has a
ListItem in the cell. The display part works fine. I then check some boxes
and hit the submit button. I can't seem to get the value that is selected on
the RadioButton List. I don't want to use the EditTemplate thing I just want
to click on the radiobutton and submit the form. I also don't want to do
autopostbacks when I click on a button. Can this be done?

I looked at this link:
http://support.microsoft.com/default.aspx?scid=kb;en-us;320707

I modified the code to work with a RadioButton List not just a RadioButton.
However from each RadioButton List when I cycle throug the GridItems it
tells me that one of the buttons in the list was selected but I can't seem
to get which one.

Here is my test:

using System;

using System.Text;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace DataGridRadio

{

public class GridList

{

//Constructors

public GridList() {}

public GridList(

string description,

ArrayList bValue)

{

this.Description = description;

this.BValue = bValue;

}

//Properties

private string description;

private ArrayList bValue;

public string Description

{

get {return description;}

set {description = value;}

}

public ArrayList BValue

{

get {return bValue;}

set {bValue = value;}

}

}

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected System.Web.UI.WebControls.Label Message;

protected System.Web.UI.WebControls.Button Button1;


private void Page_Load(object sender, System.EventArgs e)

{

ArrayList blist1 = new ArrayList();

ListItem li1 = new ListItem("aaa", "111");

blist1.Add(li1);

ListItem li2 = new ListItem("bbb", "222");

blist1.Add(li2);

ListItem li3 = new ListItem("ccc", "333");

blist1.Add(li3);


ArrayList blist2 = new ArrayList();

ListItem li4 = new ListItem("ddd");

blist2.Add(li4);

ListItem li5 = new ListItem("eee");

blist2.Add(li5);

ListItem li6 = new ListItem("fff");

blist2.Add(li6);

ArrayList blist3 = new ArrayList();

ListItem li7 = new ListItem("ggg");

blist3.Add(li7);

ListItem li8 = new ListItem("hhh");

blist3.Add(li8);

ListItem li9 = new ListItem("iii");

blist3.Add(li9);



ArrayList alist1 = new ArrayList();

GridList gl1 = new GridList("aaaaaaaaaaa", blist1);

alist1.Add(gl1);

GridList gl2 = new GridList("bbbbbbbbbbb", blist2);

alist1.Add(gl2);

GridList gl3 = new GridList("ccccccccccc", blist3);

alist1.Add(gl3);

DataGrid1.DataSource = alist1;

DataGrid1.DataBind();

}

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: This call is required by the ASP.NET Web Form Designer.

//

InitializeComponent();

base.OnInit(e);

}


/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

StringBuilder gridSelections = new StringBuilder();

//Loop through each DataGridItem, and determine which CheckBox controls

//have been selected.

foreach(DataGridItem DemoGridItem in DataGrid1.Items)

{

RadioButtonList myRadioButtonList =

(RadioButtonList)DemoGridItem.Cells[1].Controls[1];

bool b4 = myRadioButtonList.Items[1].Selected;

int b1;

b1 = myRadioButtonList.SelectedIndex;

ListItem b2 = new ListItem();

b2 = myRadioButtonList.SelectedItem;

int b3 = 2;

}

}

}

}
 
M

Michael Tkachev

RadioButtinlist has the following properties:

SelectedItem,

SelectedValue,

SelectedIndex

You can use these properties.

Bye

Michael

Empire City said:
I have an ASP.NET form with a DataGrid and Button. I want to put a
RadioButtonList in a DataGrid cell. I bind it to an ArrayList which has a
ListItem in the cell. The display part works fine. I then check some boxes
and hit the submit button. I can't seem to get the value that is selected on
the RadioButton List. I don't want to use the EditTemplate thing I just want
to click on the radiobutton and submit the form. I also don't want to do
autopostbacks when I click on a button. Can this be done?

I looked at this link:
http://support.microsoft.com/default.aspx?scid=kb;en-us;320707

I modified the code to work with a RadioButton List not just a RadioButton.
However from each RadioButton List when I cycle throug the GridItems it
tells me that one of the buttons in the list was selected but I can't seem
to get which one.

Here is my test:

using System;

using System.Text;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace DataGridRadio

{

public class GridList

{

//Constructors

public GridList() {}

public GridList(

string description,

ArrayList bValue)

{

this.Description = description;

this.BValue = bValue;

}

//Properties

private string description;

private ArrayList bValue;

public string Description

{

get {return description;}

set {description = value;}

}

public ArrayList BValue

{

get {return bValue;}

set {bValue = value;}

}

}

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected System.Web.UI.WebControls.Label Message;

protected System.Web.UI.WebControls.Button Button1;


private void Page_Load(object sender, System.EventArgs e)

{

ArrayList blist1 = new ArrayList();

ListItem li1 = new ListItem("aaa", "111");

blist1.Add(li1);

ListItem li2 = new ListItem("bbb", "222");

blist1.Add(li2);

ListItem li3 = new ListItem("ccc", "333");

blist1.Add(li3);


ArrayList blist2 = new ArrayList();

ListItem li4 = new ListItem("ddd");

blist2.Add(li4);

ListItem li5 = new ListItem("eee");

blist2.Add(li5);

ListItem li6 = new ListItem("fff");

blist2.Add(li6);

ArrayList blist3 = new ArrayList();

ListItem li7 = new ListItem("ggg");

blist3.Add(li7);

ListItem li8 = new ListItem("hhh");

blist3.Add(li8);

ListItem li9 = new ListItem("iii");

blist3.Add(li9);



ArrayList alist1 = new ArrayList();

GridList gl1 = new GridList("aaaaaaaaaaa", blist1);

alist1.Add(gl1);

GridList gl2 = new GridList("bbbbbbbbbbb", blist2);

alist1.Add(gl2);

GridList gl3 = new GridList("ccccccccccc", blist3);

alist1.Add(gl3);

DataGrid1.DataSource = alist1;

DataGrid1.DataBind();

}

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: This call is required by the ASP.NET Web Form Designer.

//

InitializeComponent();

base.OnInit(e);

}


/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

StringBuilder gridSelections = new StringBuilder();

//Loop through each DataGridItem, and determine which CheckBox controls

//have been selected.

foreach(DataGridItem DemoGridItem in DataGrid1.Items)

{

RadioButtonList myRadioButtonList =

(RadioButtonList)DemoGridItem.Cells[1].Controls[1];

bool b4 = myRadioButtonList.Items[1].Selected;

int b1;

b1 = myRadioButtonList.SelectedIndex;

ListItem b2 = new ListItem();

b2 = myRadioButtonList.SelectedItem;

int b3 = 2;

}

}

}

}
Click to expand...
 
E

Empire City

For some reason SelecteItem, etc. come up as nothing or null. If you look at
the line in my code below
bool b4 = myRadioButtonList.Items[1].Selected;
Click to expand...
I tried all sorts of different settings and when it's in a DataGrid it only
seems to return selected if one of the buttons in the list is selected.
Trying all the suggested things below they all come back empty and I can't
seem to get the SelectedItem. I've worked with RadioButtonLists a lot but
not in the DataGrid.

Michael Tkachev said:
RadioButtinlist has the following properties:

SelectedItem,

SelectedValue,

SelectedIndex

You can use these properties.

Bye

Michael

Empire City said:
I have an ASP.NET form with a DataGrid and Button. I want to put a
RadioButtonList in a DataGrid cell. I bind it to an ArrayList which has a
ListItem in the cell. The display part works fine. I then check some boxes
and hit the submit button. I can't seem to get the value that is
Click to expand...
selected
on
the RadioButton List. I don't want to use the EditTemplate thing I just want
to click on the radiobutton and submit the form. I also don't want to do
autopostbacks when I click on a button. Can this be done?

I looked at this link:
http://support.microsoft.com/default.aspx?scid=kb;en-us;320707

I modified the code to work with a RadioButton List not just a RadioButton.
However from each RadioButton List when I cycle throug the GridItems it
tells me that one of the buttons in the list was selected but I can't seem
to get which one.

Here is my test:

using System;

using System.Text;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace DataGridRadio

{

public class GridList

{

//Constructors

public GridList() {}

public GridList(

string description,

ArrayList bValue)

{

this.Description = description;

this.BValue = bValue;

}

//Properties

private string description;

private ArrayList bValue;

public string Description

{

get {return description;}

set {description = value;}

}

public ArrayList BValue

{

get {return bValue;}

set {bValue = value;}

}

}

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected System.Web.UI.WebControls.Label Message;

protected System.Web.UI.WebControls.Button Button1;


private void Page_Load(object sender, System.EventArgs e)

{

ArrayList blist1 = new ArrayList();

ListItem li1 = new ListItem("aaa", "111");

blist1.Add(li1);

ListItem li2 = new ListItem("bbb", "222");

blist1.Add(li2);

ListItem li3 = new ListItem("ccc", "333");

blist1.Add(li3);


ArrayList blist2 = new ArrayList();

ListItem li4 = new ListItem("ddd");

blist2.Add(li4);

ListItem li5 = new ListItem("eee");

blist2.Add(li5);

ListItem li6 = new ListItem("fff");

blist2.Add(li6);

ArrayList blist3 = new ArrayList();

ListItem li7 = new ListItem("ggg");

blist3.Add(li7);

ListItem li8 = new ListItem("hhh");

blist3.Add(li8);

ListItem li9 = new ListItem("iii");

blist3.Add(li9);



ArrayList alist1 = new ArrayList();

GridList gl1 = new GridList("aaaaaaaaaaa", blist1);

alist1.Add(gl1);

GridList gl2 = new GridList("bbbbbbbbbbb", blist2);

alist1.Add(gl2);

GridList gl3 = new GridList("ccccccccccc", blist3);

alist1.Add(gl3);

DataGrid1.DataSource = alist1;

DataGrid1.DataBind();

}

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: This call is required by the ASP.NET Web Form Designer.

//

InitializeComponent();

base.OnInit(e);

}


/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

StringBuilder gridSelections = new StringBuilder();

//Loop through each DataGridItem, and determine which CheckBox controls

//have been selected.

foreach(DataGridItem DemoGridItem in DataGrid1.Items)

{

RadioButtonList myRadioButtonList =

(RadioButtonList)DemoGridItem.Cells[1].Controls[1];

bool b4 = myRadioButtonList.Items[1].Selected;

int b1;

b1 = myRadioButtonList.SelectedIndex;

ListItem b2 = new ListItem();

b2 = myRadioButtonList.SelectedItem;

int b3 = 2;

}

}

}

}
Click to expand...
Click to expand...
 
E

Empire City

Hi Michael

Thanks for your help. A bit of persistance and I figured it out. I did not
properly set the DataTextField and DataValueField properties of the
RadioButtonList in the DataGrid item template. I looked at the source output
and saw the value="" and that told me I need to set that.

Thank you.



Empire City said:
For some reason SelecteItem, etc. come up as nothing or null. If you look at
the line in my code below
bool b4 = myRadioButtonList.Items[1].Selected;
Click to expand...
I tried all sorts of different settings and when it's in a DataGrid it only
seems to return selected if one of the buttons in the list is selected.
Trying all the suggested things below they all come back empty and I can't
seem to get the SelectedItem. I've worked with RadioButtonLists a lot but
not in the DataGrid.

Michael Tkachev said:
RadioButtinlist has the following properties:

SelectedItem,

SelectedValue,

SelectedIndex

You can use these properties.

Bye

Michael
Click to expand...
has
a
ListItem in the cell. The display part works fine. I then check some boxes
and hit the submit button. I can't seem to get the value that is
Click to expand...
selected
on
the RadioButton List. I don't want to use the EditTemplate thing I
Click to expand...
just
want
to click on the radiobutton and submit the form. I also don't want to do
autopostbacks when I click on a button. Can this be done?

I looked at this link:
http://support.microsoft.com/default.aspx?scid=kb;en-us;320707

I modified the code to work with a RadioButton List not just a RadioButton.
However from each RadioButton List when I cycle throug the GridItems it
tells me that one of the buttons in the list was selected but I can't seem
to get which one.

Here is my test:

using System;

using System.Text;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace DataGridRadio

{

public class GridList

{

//Constructors

public GridList() {}

public GridList(

string description,

ArrayList bValue)

{

this.Description = description;

this.BValue = bValue;

}

//Properties

private string description;

private ArrayList bValue;

public string Description

{

get {return description;}

set {description = value;}

}

public ArrayList BValue

{

get {return bValue;}

set {bValue = value;}

}

}

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected System.Web.UI.WebControls.Label Message;

protected System.Web.UI.WebControls.Button Button1;


private void Page_Load(object sender, System.EventArgs e)

{

ArrayList blist1 = new ArrayList();

ListItem li1 = new ListItem("aaa", "111");

blist1.Add(li1);

ListItem li2 = new ListItem("bbb", "222");

blist1.Add(li2);

ListItem li3 = new ListItem("ccc", "333");

blist1.Add(li3);


ArrayList blist2 = new ArrayList();

ListItem li4 = new ListItem("ddd");

blist2.Add(li4);

ListItem li5 = new ListItem("eee");

blist2.Add(li5);

ListItem li6 = new ListItem("fff");

blist2.Add(li6);

ArrayList blist3 = new ArrayList();

ListItem li7 = new ListItem("ggg");

blist3.Add(li7);

ListItem li8 = new ListItem("hhh");

blist3.Add(li8);

ListItem li9 = new ListItem("iii");

blist3.Add(li9);



ArrayList alist1 = new ArrayList();

GridList gl1 = new GridList("aaaaaaaaaaa", blist1);

alist1.Add(gl1);

GridList gl2 = new GridList("bbbbbbbbbbb", blist2);

alist1.Add(gl2);

GridList gl3 = new GridList("ccccccccccc", blist3);

alist1.Add(gl3);

DataGrid1.DataSource = alist1;

DataGrid1.DataBind();

}

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: This call is required by the ASP.NET Web Form Designer.

//

InitializeComponent();

base.OnInit(e);

}


/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

StringBuilder gridSelections = new StringBuilder();

//Loop through each DataGridItem, and determine which CheckBox controls

//have been selected.

foreach(DataGridItem DemoGridItem in DataGrid1.Items)

{

RadioButtonList myRadioButtonList =

(RadioButtonList)DemoGridItem.Cells[1].Controls[1];

bool b4 = myRadioButtonList.Items[1].Selected;

int b1;

b1 = myRadioButtonList.SelectedIndex;

ListItem b2 = new ListItem();

b2 = myRadioButtonList.SelectedItem;

int b3 = 2;

}

}

}

}
Click to expand...
Click to expand...
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