focus question

[starbuck]

We have some fields with AutoPostBack set to true and when user tabs to the
next field the screen re-calculates correctly however we also lose which
control/text box had focus when the user tabbed.
Is there any way of storing and resting which control should have focus?
We are using asp.net with vb.net for code.

Thanks

 

[Guest]

Here is a user control I wrote in C# to accomplish this. Place it in your toolbox and drag and drop it on any form. Set the properties in your code behind

using System
using System.Web.UI
using System.ComponentModel

namespace Common.CTL.FocusManage

/// <summary
/// clsFocusManager - Allows programmer to set focus to a control and to select the data in th
/// control if desired
/// This web custom control is placed in the Tool Box
/// </summary
[DefaultProperty("Text"),
ToolboxData("<{0}:clsFocusManager runat=server></{0}:clsFocusManager>")

public class clsFocusManager : System.Web.UI.WebControls.WebContro

private string mBoundControlID
private bool mSelectControl

//Property to indicate which control will receive focus
[Bindable(true),
Category("Appearance"),
DefaultValue("")]

public string BoundControlI

ge

return mBoundControlID

se

mBoundControlID = value



//Property to indicate if the data in the control is selected or not
[Bindable(true),
Category("Appearance"),
DefaultValue(false)]

public bool SelectContro

ge

return mSelectControl

se

mSelectControl = value



/// <summary>
/// Render this control to the output parameter specified
/// </summary
/// <param name="output"> The HTML writer to write out to </param
protected override void Render(HtmlTextWriter output

string strScript

if (mBoundControlID != null

if (Page.FindControl(mBoundControlID) != null

if(!Page.IsStartupScriptRegistered("FocusManager")

strScript = "<Script Language=javascript>"
strScript += "document.getElementById('" + mBoundControlID + "').focus();"

if (mSelectControl == true

strScript += "document.getElementById('" + mBoundControlID + "').select();"

strScript += "</script>"
Page.RegisterStartupScript("FocusManager", strScript)

 

[starbuck]

Thanks

Here is a user control I wrote in C# to accomplish this. Place it in your

toolbox and drag and drop it on any form. Set the properties in your code
behind.

using System;
using System.Web.UI;
using System.ComponentModel;

namespace Common.CTL.FocusManager
{
/// <summary>
/// clsFocusManager - Allows programmer to set focus to a control and to select the data in the
/// control if desired.
/// This web custom control is placed in the Tool Box.
/// </summary>
[DefaultProperty("Text"),
ToolboxData("<{0}:clsFocusManager runat=server></{0}:clsFocusManager>")]

public class clsFocusManager : System.Web.UI.WebControls.WebControl
{
private string mBoundControlID;
private bool mSelectControl;

//Property to indicate which control will receive focus.
[Bindable(true),
Category("Appearance"),
DefaultValue("")]

public string BoundControlID
{
get
{
return mBoundControlID;
}
set
{
mBoundControlID = value;
}
}

//Property to indicate if the data in the control is selected or not.
[Bindable(true),
Category("Appearance"),
DefaultValue(false)]

public bool SelectControl
{
get
{
return mSelectControl;
}
set
{
mSelectControl = value;
}
}

/// <summary>
/// Render this control to the output parameter specified.
/// </summary>
/// <param name="output"> The HTML writer to write out to </param>
protected override void Render(HtmlTextWriter output)
{
string strScript;

if (mBoundControlID != null)
{
if (Page.FindControl(mBoundControlID) != null)
{
if(!Page.IsStartupScriptRegistered("FocusManager"))
{
strScript = "<Script Language=javascript>";
strScript += "document.getElementById('" + mBoundControlID + "').focus();";

if (mSelectControl == true)
{
strScript += "document.getElementById('" + mBoundControlID + "').select();";
}
strScript += "</script>";
Page.RegisterStartupScript("FocusManager", strScript);
}
}
}
}
}
}

 

[Joe Fallon]

Here is another idea:

In your base page that all your pages inherit from you can use:
=====================================================
Public InitialFocus As Control

Protected Overridable Sub Page_PreRender(ByVal sender As Object, ByVal e As
EventArgs)
Dim sb As New StringBuilder
sb.Append("<script language='javascript'>")
If Not InitialFocus Is Nothing Then
sb.Append("document.getElementById('" & InitialFocus.ClientID &
"').focus();")
End If
sb.Append("</script>")
End Sub
=====================================================
Then in Page_Load of your .aspx page you simply set the Property like this:
InitialFocus = txtVuid
=====================================================

 

[starbuck]

Thanks Joe

Here is another idea:

In your base page that all your pages inherit from you can use:
=====================================================
Public InitialFocus As Control

Protected Overridable Sub Page_PreRender(ByVal sender As Object, ByVal e As
EventArgs)
Dim sb As New StringBuilder
sb.Append("<script language='javascript'>")
If Not InitialFocus Is Nothing Then
sb.Append("document.getElementById('" & InitialFocus.ClientID &
"').focus();")
End If
sb.Append("</script>")
End Sub
=====================================================
Then in Page_Load of your .aspx page you simply set the Property like this:
InitialFocus = txtVuid
=====================================================