我试图绑定(bind)一个 html 选择,我为此编写了一个 web 方法,它返回一个列表。我如何使用此返回值使用 jquery 绑定(bind)我的选择控件....?我卡住了...代码附在此处:
function columnDropdownScript() {
var reqTableNameParameter = "Designation"; //$('#ddlTableNames').text;
var requestTableParameters = '{' +
'selTableName:"' + reqTableNameParameter + '"}';
// Configure AJAX call to server
$.ajax({
type: "POST",
url: "Webtop.aspx/FillColumnDropdown",
data: requestTableParameters,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: DisplayColumnNames, //Event that'll be fired on Success
error: DisplayError //Event that'll be fired on Error
});
}
function DisplayColumnNames(serverResponse) {
$("#ddlColumnNames").get(0).options.length = 0;
$("#ddlColumnNames").get(0).options[0] = new Option("Select", "-1");
$.each(serverResponse.d, function(index, item) {
$("#ddlColumnNames").get(0).options[$("#ddlColumnNames").get(0).options.length] = new Option(item.Display, item.Value);
});
alert('Check Column DropDown');
}
[WebMethod]
public static List<string> FillColumnDropdown(string selTableName)
{
int x=1;
string selectedTable = selTableName;
List<string> columnsToBind = new List<string>();
foreach (Columns column in Metadata.columnsOfSelectedTables)
{
if (column.TableName.Equals(selectedTable))
{
columnsToBind.Add(column.ColumnName);
}
}
return columnsToBind;
}
最佳答案
//我还没有测试过这个,但在我的脑海中,这应该可以解决问题 //(注意,这是附加到列表中。如果多次调用,您可能需要清除)
$.ajax({
type: "POST",
url: "Webtop.aspx/FillColumnDropdown",
data: requestTableParameters,
//contentType: "plain/text",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(msg) {
for (var i = 0, l = msg.length; i < l; i++) {
$("#the_selectbox").append("<option>" + msg.d[i] + "</option>");
}
},
error: DisplayError //Event that'll be fired on Error
});
关于c# - 是否可以从 web 方法返回一个列表 <string> 并传递返回值以使用 jquery 绑定(bind)一个 html 选择?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5813337/