validate in textchange event in the grid

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JavaScript

function isValidDate(sText) {
    var reDate = /(?:0[1-9]|[12][0-9]|3[01])\/(?:0[1-9]|1[0-2])\/(?:19|20\d{2})/;
    return reDate.test(sText);
}
function validateDate(id) {
    //debugger;
    if (document.getElementById(id).value != '') {
        var oInput1 = document.getElementById(id);
        if (isValidDate(oInput1.value)) {
            //By Dileep [03Jan11] to clear colors after correct validation
            document.getElementById(id).style.backgroundColor = "white";
            document.getElementById(id).style.color = "black";
            //End Dileep
        }
        else {
            //By Dileep [03Jan11] to not alert the end user
            // alert("Enter in DD/MM/YYYY");
            document.getElementById(id).value = "";
            //document.getElementById(id).focus();
            //End Dileep
            document.getElementById(id).style.backgroundColor = "#fba09d";
        }
    }
    else {
        //By Dileep [03Jan11] to not allow blank date
        //document.getElementById(id).focus();
        document.getElementById(id).style.backgroundColor = "#fba09d";
        //end dileep
    }
}
//By Dileep Kumar 01Feb2011  -- To Restrict the user to feed Date
function checkDate(str, id) {
    // debugger;
    if (parseInt(document.getElementById(id).value.length) < 10) {
        // ValidInput(str);
        var KeyID = event.keyCode;
        var ch = String.fromCharCode(KeyID);
        if (str.indexOf(ch) > -1)
            return true;
        else
            return false;
    }
    else {
        return false;
    }
}

C# Code-----------------------------------------------------

C#

protected void NameofFormTxt_TextChanged(object sender, EventArgs e)
        {
           
            int i=Convert.ToInt32(ViewState["RowInd"].ToString());
            TextBox ValTextbox = (TextBox)BindTextBoxGv.Rows[i].Cells[1].FindControl("NameofFormTxt");
            if (i == 0)
            {
                ValTextbox.Attributes.Add("onblur", "return validateDate('ctl00$ctl00$ParentContentPlaceHolder$MasterOperationsContentPlaceHolder$BindTextBoxGv$ctl02$NameofFormTxt');");
            }
        }

---------------------------------------------------
My problem is I want to call the above Javascript from the text change event in the following manner but I fail. Is there any other way to call the Javascript?

I also tried in the following way

C#

//----------------------
1.if (i == 0)
            {
                ValTextbox.Attributes.Add("onblur", "return validateDate(this.id);");

//----------------

2.if (i == 0)
            {
                ValTextbox.Attributes.Add("onblur", "return validateDate(<%=NameofFormTxt.ClientID%>);");
}

---------------------------
Please help me

Posted 15-Feb-11 20:21pm

Rajesh Yerramsetti

Updated 15-Feb-11 21:51pm

Sandeep Mewara

v2

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Sandeep Mewara 16-Feb-11 3:52am

Always use PRE tags to format code part. It makes the question readable.

1 solution

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Albin Abel · Answer 1 · 2011-02-15T21:09:00

Hi as an Example..

I have this text field in the gridview ....

XML

<asp:TemplateField HeaderText="Text Column">
     <ItemTemplate>
         <asp:TextBox ID="Text" runat="server"></asp:TextBox>
     </ItemTemplate>
 </asp:TemplateField>

On the griview I am defining a eventhandler for row databound event like this....(OnRowDataBound="GridView1_RowDataBound")

VB

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
            DataKeyNames="ProductId" DataSourceID="SqlDataSource1"   OnRowDataBound="GridView1_RowDataBound">

on the code behind RowDataBound code like this...

C#

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType != DataControlRowType.Header && e.Row.RowType != DataControlRowType.Footer)
    {
            TextBox textbox = (TextBox)e.Row.Cells[4].FindControl("Text");
            textbox.Attributes.Add("onblur", "validateText(this)");
    }
}

In the master page header I have the javascript like ....

XML

<script type="text/javascript">
    function validateText(textbox) {
        alert("You entered " + textbox.value);
    }
</script>

Now it can execute the validate script onblur....you can attach this script to another cells in the gridview too.

Hope this helps