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How to get values from textboxes

Posted on 2013-02-07
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Last Modified: 2013-03-07
Hello,

I am using javascript to add text boxes when i click add button

  $(".addButton").on("click", function () {
     


        var newTextBoxDiv = $(document.createElement('div'))
      .attr("id", 'TextBoxDiv' + counter);

        newTextBoxDiv.html(' <label class="alignme" for="repdist' + counter + '">Rep' + counter + ' - </label><label for="repdist' + counter + '">Distance:</label>' +
    ' <input  onkeypress="return IsNumber(event)"  name="repdist' + counter + '" type="text" id="repsit' + counter + '" style="width:30px;" />' +
   '  <select name="kmormile' + counter + '" id="kmormile' + counter + '"> ' +
     	'<option value="Miles">Miles</option>' +
        	'<option value="Km">Km</option>' +
           ' </select>' +
                      ' <label for="repmin' + counter + '">Min:</label>' +
                   '  <input onkeypress="return IsNumber(event)"  name="repmin' + counter + '" type="text" value="00" maxlength="2" id="repmin' + counter + '" style="width:30px;" />' +

                      ' <label for="repsec' + counter + '">Sec:</label>' +
                     '<input onkeypress="return IsNumber(event)"  name="repsec' + counter + '" type="text" value="00" maxlength="2" id="repsec' + counter + '" style="width:30px;" />');

        newTextBoxDiv.appendTo("#TextBoxesGroup");


        counter++;
    });

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The issue is im not really sure how i can loop through them to get the values output.

Has anyone got any ideas??

The working code is shown here : http://jarrattperkins.com/training/addtraining.aspx
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Question by:runnerjp2005
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7 Comments
 
LVL 42

Accepted Solution

by:
sedgwick earned 2000 total points
ID: 38863357
in line 5 you code:
.attr("id", 'TextBoxDiv' + counter);

so basically you give your textbox unique id which can be used to retrieve its value:

for(var i=0;i<counter;i++){
var val = $('#TextBoxDiv'+i).text();
}

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0
 

Author Comment

by:runnerjp2005
ID: 38863368
how would i do this in vb.net though rather then javascript
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 38863377
do you mean that you want to get the value of your dynamic generated text-boxes values, in your code behind?
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Author Comment

by:runnerjp2005
ID: 38863423
yes thats it :)
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 38863465
since the textboxes are not aspnet controls but generated on runtime in your client side, you have a few options:

1. use aspnet hidden field control.
you add it in your aspx page:
<asp:HiddenField runat="server" ID="txtboxValues" Value='' />

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set its value in your client side:
//create json array
var txtboxValues = [];
for(var i=0;i<counter;i++){
txtboxValues.push($('#TextBoxDiv'+i).text());
}
//assign the hidden field
$("#<%: this.txtboxValues.ClientID %>").val(txtboxValues);

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read it in your server side:
JavaScriptSerializer js = new JavaScriptSerializer();
string [] txtboxValues =  js.Deserialize<string>(this.txtboxValues.Value);

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2. create web service and use ajax to pass the values to server side.
check here for guideline: Walkthrough: Creating and Using AJAX-Enabled Web Service
in your VS solution, aright click in your project and add Web Service.
add new service called:
[WebMethod]
public SendValues(List<string> values){
}

in your client side you call the web service like this:
var txtboxValues = [];
for(var i=0;i<counter;i++){
txtboxValues.push($('#TextBoxDiv'+i).text());
}
var jsonText = JSON.stringify({ list: txtboxValues});
     
    $.ajax({
      type: "POST",
     url: "WebService1.asmx/SendValues",
      data: jsonText,
      contentType: "application/json; charset=utf-8",
      dataType: "json",
     success: function() { alert("success"); },
     failure: function() { alert("failed"); }
  });

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check here to pass string array to server side via ajax:
javascript-arrays-via-jquery-ajax-to-an-aspnet-webmethod
0
 

Author Comment

by:runnerjp2005
ID: 38864468
When im reading it on client side

JavaScriptSerializer js = new JavaScriptSerializer();
string [] txtboxValues =  js.Deserialize<string>(this.txtboxValues.Value);

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how would i add it to my sql database
0
 
LVL 10

Expert Comment

by:Monica P
ID: 38870419
0

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