How to apply textbox blank validation on button click inside gridview in asp.net using javascript?

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How to apply textbox blank validation on button click inside gridview in javascript?I have a gridview that contains 2 textboxes and a save button in each row.I want to validate the textboxes on corresponding save button click.

I have applied the logic but problem is that it will only work for textBox ids that are hardcoded.How can I modify this code so that it will work for all the gridview rows?

function gvValidate() {

var grid = document.getElementById('<%= GridViewCTInformation.ClientID %>');
 if(grid!=null) 
  {
   var Inputs = grid.getElementsByTagName("input"); 
    for(i = 0; i < Inputs.length; i++) 
     {
      if(Inputs[i].type == 'text' ) 
       {
           if (Inputs[i].id == 'ctl00_contentPlaceHolderSubScreen_GridViewCTInformation_ctl02_TextBoxCTTermCode') 
             {
                 if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }

             }
             else if (Inputs[i].id == 'ctl00_contentPlaceHolderSubScreen_GridViewCTInformation_ctl02_TextBoxCTTermDesc') {
                 if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }
             }

      }
     }
     return true;
 }

}

 Protected Sub GridViewTaxInformation_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewTaxInformation.RowDataBound
    Try
        If e.Row.RowType = DataControlRowType.DataRow Then

            Dim btnSave As Button = DirectCast(e.Row.FindControl("ButtonSave"), Button)
            btnSave.Attributes.Add("onclick", "return gvValidate()")
        End If
    Catch ex As Exception
        Common.WriteLog(ex.Message)
        Common.WriteLog((ex.StackTrace))
        Response.Redirect("..\Errors.aspx", False)
    End Try
End Sub

Finally I got the solution of my problem..I have just passed index of row of gridview to javascript function.

Here's the code

 function gvValidate(rowIndex) {

var grid = document.getElementById('<%= GridViewCTInformation.ClientID %>');
 if(grid!=null) {
     var Inputs = grid.rows[rowIndex + 1].getElementsByTagName("input"); 
    for(i = 0; i < Inputs.length; i++) 
     {
      if(Inputs[i].type == 'text' ) 
       {
                  if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }

      }
     }
     return true;
 }

}

Protected Sub GridViewCTInformation_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewCTInformation.RowDataBound
    Try
        If e.Row.RowType = DataControlRowType.DataRow Then
            Dim btnSave As Button = DirectCast(e.Row.FindControl("ButtonCTInfoSave"), Button)
            btnSave.Attributes.Add("onclick", "return gvValidate(" + e.Row.RowIndex.ToString() + ")")
        End If
    Catch ex As Exception
        Common.WriteLog(ex.Message)
        Common.WriteLog((ex.StackTrace))
        Response.Redirect("..\Errors.aspx", False)
    End Try
End Sub

How to apply textbox blank validation on button click inside gridview , I have just passed index of row of gridview to javascript function. Here's the code Response.Redirect("..\Errors.aspx", False) End Try End Sub try it may help u you may use the validation controls to validate any input. In this article I will explain with an example, how to validate TextBox inside GridView using jQuery on Button Click in ASP.Net.

Don't check for id. Simply check for blank value.

 if(Inputs[i].type == 'text' ) 
 {

             if (Inputs[i].value == "") {
                 alert("Enter values,blank is not allowed");
                 return false;
             }

  }

Client side validation for Textbox inside Gridview , Hi all, I have the below code for validating the textbox inside gridview control < script language="javascript" type="text/javascript"> function Any idea to use the css class with textbox and using the Jquery Iam facing problem by accessing the first textbox from gridview and to check if it is empty then retrn� The HTML Markup consists of an ASP.Net GridView with one BoundField column and two TemplateField columns consisting of TextBoxes.

  <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*" ControlToValidate="the name of your textbox to be validated" ForeColor="Red"></asp:RequiredFieldValidator>

try it may help u you may use the validation controls to validate any input

how to validate gridview row in java script on button click, Brought to you by: JavaScript SDK for Bold BI dashboard and analytics and txtName is ID of textbox which is present inside your gridview. alert("Enter values,blank is not allowed"); <asp:Button ID="btnValidate" runat="server" Text ="ValidateGrid" Issue with single-page-application � ajay sharma. Client Side Validation Of GridView with JavaScript. Many people are asking me how to validate GridView with JavaScript. How to get control client Id on client side. This article and attached code snippet shows you to create a validate method in JavaScript and call it from your ASP.NET page's code behind to validate the controls.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(function () {
    $("[id*=GridView1] [id*=lnkUpdate]").click(function () {
        //Find the GridView Row using the LinkButton reference.
        var row = $(this).closest("tr");

        //Find the TextBox control.
        var txtName = row.find("[id*=txtName]");

        //Find the DropDownList control.
        var ddlCountries = row.find("[id*=ddlCountries]");

        var message = "";

        //Validate the TextBox control.
        if ($.trim(txtName.val()) == "") {
            message += "Please enter Name.\n";
        }

        //Validate the DropDownList control.
        if (ddlCountries.val() == "") {
            message += "Please select Country.";
        }

        //Display error message.
        if (message != "") {
            alert(message);
            return false;
        }
        return true;
    });
});
</script>

You may try above code for Grid View Validation.

How to use JavaScript to Validate Textbox and DropDownList in , I'll show how using few lines of JavaScript code you can validate textbox and Related: Bind data to a GridView Control using SqlDataSource in Asp.Net and to replace it I have added a link button inside the <ItemTemplate> tag, with the When you click the Edit link button it would display two more link buttons in edit� Also Read: Perform a Simple CRUD Operation using a Paging Enabled GridView Control in Asp.Net. Add JavaScript Validation to a DropDownList Control. You can apply a similar principle to a DropDownList control that you have added in your GridView control. Yes, you can attach a DropDownList to the SqlDataSource control. Like this…

How to validate textbox inside gridview control using update/insert , Hey, Correct Your code there is some syntax error or replace your code by following document.getElementById("<%= txtbox.ClientID%>").value� Now run the ASP.Net web application and click on the Create button without inserting any data in the form, then it will show the following alert message. In the preceding screen, you clearly see that even I have written the code on the create button to redirect to the next page but it will not be redirected because the form data is blank and it

Here I will explain how to get or validate textbox controls inside of asp.net gridview using JavaScript or validate asp.net gridview footer controls (textbox, dropdownlist, checkbox, radio button etc..) values in JavaScript.

In this article how we can validate TextBox and DropDownList using JavaScript. Using the code. In this article we will see how we can validate a TextBox and DropDownList using JavaScript. Firstly we add some textboxes and a dropdownlist to an .aspx page, as follows:

Comments
  • what do you mean by for all the rows ?
  • Actually I have gridview in which on each row I have 2 textboxes and a save button.I want to validate that particular record whose save button is clicked.
  • why don't you use the validation control like : RequiredFieldValidator
  • If your answer is correct, accept it so future users will know.
  • thanks for ur answer..But it will unnecessary check all the input controls,what if I want to validate only that textbox whose save button is clicked?
  • You can get the reference of the row from button object then check input box in that row. (I believe both are in the same row)If you post the output the html file that will help to understand the dom structure of the grid.