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Make The Server control Null

Posted on 2011-09-07
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Last Modified: 2012-05-12
Hi,
   I am trying to make all Text Box and Labels controls Values as Null After page Submission. This are Successfully working in Normal Asp.Net Page.Now I am Trying In Master Page. My Master Page Structure is
 <Master Page>
    <form>
         <asp:ContentPlaceHolder>
                <div>
                     <asp:UpdatePanel>
                            <ContentTemplate>

           "Here is My Controls TextBox, Labels and DropBox"

                            </ContentTemplate>
                     </asp:UpdatePanel>
                 </div>
          </asp:ContentPlaceHolder>
     </form>
</Master Page>


Now i want  Make Those Controls as Null and Dropdown Selected index as"0"

Thank's in Advance
0
Comment
Question by:CPSRI
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4 Comments
 
LVL 28

Expert Comment

by:strickdd
ID: 36495771
Create a method that run on page load that sets all the controls to the desirec value:

Page_Load(...)
{
    if(!Page.IsPostBack)
        ResetControls();
}

ResetControls()
{
    MyTextBox1.Text = "";
    MyDDL1.SelectedIndex = 0;
    //etc.
}
0
 

Author Comment

by:CPSRI
ID: 36497381
Hi strickdd,
     i am not using single control. The Bulk of controls i am using Here i got this code from internet. This Code not working in master page . Here the code is

 foreach (Control ctr in pg.Form.Controls)
        {
            if (ctr is TextBox)
            {
                ((TextBox)ctr).Text =string.Empty;
            }
            else if(ctr is DropDownList)
            {
                ((DropDownList)ctr).SelectedIndex=0;
            }
            else if (ctr is HtmlTextArea)
            {
                ((HtmlTextArea)ctr).Value = string.Empty;
            }
            else if (ctr is HtmlSelect)
            {
               ((HtmlSelect)ctr).SelectedIndex=0;
            }
        }
i want this for-loop to my above mentioned Structured.
0
 
LVL 28

Accepted Solution

by:
strickdd earned 2000 total points
ID: 36497877
foreach (Control ctr in Page.Controls) //Instead of Page.Controls you can use any parent container with the controls you want to reset
        {
            if (ctr is TextBox)
            {
                ((TextBox)ctr).Text =string.Empty;
            }
            else if(ctr is DropDownList)
            {
                ((DropDownList)ctr).SelectedIndex=0;
            }
            else if (ctr is HtmlTextArea)
            {
                ((HtmlTextArea)ctr).Value = string.Empty;
            }
            else if (ctr is HtmlSelect)
            {
               ((HtmlSelect)ctr).SelectedIndex=0;
            }
        }
0
 

Author Closing Comment

by:CPSRI
ID: 36500683
Thank you strickdd ; I got them all nullable and drop down selected index '0'
0

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