CODEWITHSUNDEEP
javascriptc#asp.net
HEEN
HEEN

Reputation: 4721

Stop page post back on button click

I want to open a dialog box on click of a button which is inside gridview

but what happens is, whenever I click on button the page is getting refreshed. I tried giving UseSubmitBehavior=false but still my page is getting postback.

Here is my button

<asp:Button ID="FlAttachParty" runat="server" Width="150px" Height="25px" Text="Add Attachment" OnClick="FlAttachParty_Click" CausesValidation="false"  />

Kindly suggest how to achieve this

update

server side code

protected void FlAttachParty_Click(object sender, EventArgs e)
{   
    if (strMode == "A")
    {
        if (HidAttachParty.Value == "")
        {
            ObjPriCon.Open();
            OracleCommand objpricmd = new OracleCommand("select xxcus.xxacl_pn_party_info_SEQ.nextval from dual", ObjPriCon);
            HidAttachParty.Value = Convert.ToString(objpricmd.ExecuteOracleScalar());
            ObjPriCon.Close();
        }
        ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "AttachmentCallParty(" + HidAttachParty.Value + ");", true);
    }
    else
    {
        if (HidAttachParty.Value == "")
        {
            ObjPriCon.Open();
            OracleCommand ObjPriCmd = new OracleCommand("select xxcus.xxacl_pn_party_info_SEQ.nextval from dual", ObjPriCon);
            HidAttachParty.Value = Convert.ToString(ObjPriCmd.ExecuteOracleScalar());
            ObjPriCon.Close();
        }
        ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "AttachmentCallParty(" + HidAttachParty.Value + ");", true);
    }
}

Upvotes: 1

Views: 424

Answers (1)

Mihai Alexandru-Ionut
Mihai Alexandru-Ionut

Reputation: 48337

Asp:Button is a server control and for send request to server and get response need page refresh.

The control renders markup as , regardless of whether or not you have a OnClick event tied to it. This means that your form will be submitted to the server upon click, unless you stop it with javascript.

One solution is using Ajax Call.

Another solution is to use an HTML button and bind a click event handler.

<input type="button" id="BtnGo" class="button" value="Go" runat="server" onclick="funShortcuts()" style="height: 21px; width: 40px;" />

The problem is genereting of HidAttachID.

So you can get here in the following way: 

function funShortcuts() { 
    var str_mkey = ""; 
    var MkeyVal = '<%= Request.QueryString["key"] %>'; 
    if (MkeyVal == "10") { 
       var r1 = confirm('Do you want to open the attachment form ? '); 
    if (MkeyVal > 0) { 
       if (r1 == true) { 
          str_mkey = "'" + MkeyVal + "'"; 
       } 
       else { 
          str_mkey = "'" + MkeyVal + "'"; 
       } 

      var returnPara = window.showModalDialog("../PreSales/Transactions/FrmCrm_File_Attachment.aspx?Entity='XXACL_PN_PARTY_INFO','XXACL_PN_EXPENSE_INFO','XXACL_PN_VIEW_DATA_INFO'&mkey=" + MkeyVal + "&User_Attach=N&userid=<%=Request.QueryString.Get("userid")%>", null, 'unadorned:yes;resizable:1;dialogWidth:800px;dialogHeight:350px'); 
      document.getElementById('HidCefMkey').value = MkeyVal; 
    } 
    else { 
       alert("Kindly save the form first..!!"); 
    } 
  } 
}

Upvotes: 2

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