Validation summary display separately for each text box. in a asp.net website -

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 <asp:textbox id="txt_subject" runat="server" cssclass="txt_box"></asp:textbox>  <asp:requiredfieldvalidator id="valsubjectrequired" controltovalidate="txt_subject"                 errormessage="subject required field." enableclientscript="true" display="none"                 runat="server" />  <asp:validationsummary id="valsummary" headertext="" showsummary="true" displaymode="list"                 runat="server" style="z-index: 1; left: 437px; top: 118px; color: maroon; />

i have text box , validation controls. have many text box , every text box required field display error message in validation summary. have positioned validation summary below form. have text box , labels inside table tag. how can display error message next text box. have scroll down , find out req fields. instead want display next text box.

if don't want show validation summary can delete or set "showsummary" false. , set "showmessagebox" true user gets alert.

the text displays in alert whatever put in "errormessage" of "requiredfieldvalidator". "requiredfieldvalidator" has property called "text". becomes error message next text box. 

<asp:textbox id="txt_subject" runat="server" cssclass="txt_box" />  <asp:requiredfieldvalidator id="valsubjectrequired" runat="server" controltovalidate="txt_subject" errormessage="error message shown in pop-up"  text="error message shown next text box" />  <asp:validationsummary id="valsummary" runat="server" headertext="" showsummary="false" showmessagebox="true" />

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