سلام دوست عزیز
اینجا بهتر شد مطرح کردی ....
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="txt" runat="server" DIR="RTL" Font-Names="Tahoma"
onkeypress="FKeyPress(this)" onkeydown="FKeyDown(this)"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
کد جاوا اسکریپت :( منبع : سایت سنجش )
<head runat="server">
<title>Untitled Page</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script type="text/javascript">
var lang = 1; // 1: Farsi, 0: English
// Farsi keyboard map based on ISIRI-2901
var farsikey = [
0x0020, 0x0021, 0x061B, 0x066B, 0x00A4, 0x066A, 0x060C, 0x06AF,
0x0029, 0x0028, 0x002A, 0x002B, 0x0648, 0x002D, 0x002E, 0x002F,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
0x0038, 0x0039, 0x003A, 0x0643, 0x003E, 0x003D, 0x003C, 0x061F,
0x066C, 0x0624, 0x200C, 0x0698, 0x0649, 0x064D, 0x0625, 0x0623,
0x0622, 0x0651, 0x0629, 0x00BB, 0x00AB, 0x0621, 0x004E, 0x005D,
0x005B, 0x0652, 0x064B, 0x0626, 0x064F, 0x064E, 0x0056, 0x064C,
0x0058, 0x0650, 0x0643, 0x062C, 0x005C, 0x0686, 0x00D7, 0x0640,
0x200D, 0x0634, 0x0630, 0x0632, 0x064A, 0x062B, 0x0628, 0x0644,
0x0627, 0x0647, 0x062A, 0x0646, 0x0645, 0x067E, 0x062F, 0x062E,
0x062D, 0x0636, 0x0642, 0x0633, 0x0641, 0x0639, 0x0631, 0x0635,
0x0637, 0x063A, 0x0638, 0x007D, 0x007C, 0x007B, 0x007E ];
function changeLang() {
if (lang == 0) {
lang = 1;
return true;
}
else {
lang = 0;
return true;
}
}
function FKeyDown (txtFrm){
var key = window.event.keyCode;
if (key == 145){
if (lang == 0) {
lang = 1;
return true;
}
else {
lang = 0;
return true;
}
}
}
function FKeyPress(txtFrm) {
var key = window.event.keyCode;
if (key == 13) { window.event.keyCode = 13; return true; }
if (lang == 1) { // If Farsi
if (key == 0x0020 && window.event.shiftKey) // Shift-space -> ZWNJ
window.event.keyCode = 0x200C;
else
window.event.keyCode = farsikey[key - 0x0020];
if (farsikey[key - 0x0020] == 92) {
window.event.keyCode = 0x0698;
}
if (farsikey[key - 0x0020] == 8205) {
window.event.keyCode = 0x067E;
}
}
return true;
}
function change(obj){
if (lang==0)
lang=1
else
lang=0;
obj.focus();
}
</script>
</head>