【发布时间】:2023-03-09 07:30:02
【问题描述】:
我在寻找与 Kendo Grid 相关的解决方案时遇到了问题。
我在剑道网格的单元格中呈现剑道下拉列表。看起来一切都很好,直到用户将注意力集中在单元格内的下拉列表中或标签上。红色散列表示进行了更改,但它显示的是 kendo DDL 的数据值字段而不是文本。好的,我意识到我可以在 dataTextField 中使用与我在 dataValueField 中使用的 DS 相同的字段,但这对我不起作用......因为当我调用 create 或 update 时,我需要能够将所选项目的主键或 ID 传递回我的 Web api 控制器。
这里是网格 DS
function loadContactGrid(vendorID) {
var contactsReadURL = null;
contactsReadURL = "/contacts/getcontacts/" + parseInt(vendorID);
contactGridDS = new kendo.data.DataSource({
transport: {
read: {
url: contactsReadURL,
type: 'GET',
contentType: "application/json; charset=utf-8",
},
update: {
url: "/contacts/UpdateContacts/",
type: 'PUT',
contentType: "application/json; charset=utf-8",
dataType: "json",
error: function(xhRequest, ErrorText, thrownError) {
alert('ERROR!!!\n' + ' xhRequest: ' + xhRequest + '\n' + ' ErrorText: ' + ErrorText + '\n' + ' thrownError: ' + thrownError + '\n');
},
complete: function(e) {
$("#contactGrid").data("kendoGrid").dataSource.read();
}
},
destroy: {
url: "/contacts/DeleteContact/",
contentType: "application/json; charset=utf-8",
dataType: "json",
type: "DELETE"
},
create: {
url: "/contacts/InsertContact/",
contentType: "application/json; charset=utf-8",
type: 'POST',
dataType: "json",
success: function(results) {
alert('Contacts successfully saved!');
},
error: function(xhRequest, ErrorText, thrownError) {
alert('ERROR!!!\n' + ' xhRequest: ' + xhRequest + '\n' + ' ErrorText: ' + ErrorText + '\n' + ' thrownError: ' + thrownError + '\n');
},
complete: function(e) {
$("#contactGrid").data("kendoGrid").dataSource.read();
}
},
parameterMap: function(options, operation) {
if (operation !== "read" && options) {
return JSON.stringify(options.models);
}
if (operation == "create") {
// send the created data items as the "models" service parameter encoded in JSON
return { models: kendo.stringify(data.models) };
}
}
},
batch: true,
scrollable: false,
pageSize: 8,
change: function(e) {
if (e.action == "itemchange" && e.field == "email") {
var model = e.items[0];
if (isEmailValid($('input[name=email]').val()) == false) {
e.items[0].receivereport = false;
}
}
if (e.action == "itemchange" && e.field == "contacttype") {
var model = e.items[0];
//setTimeout(function () {
//$('.k-dirty-cell').focusout(function() {
//alert($(this).text(textOverrideContactType(e.items[0].contacttype)));
//});
//textOverrideContactType(e.items[0].contacttype);
//}, 1000); attempting to change text in cell here failed
}
if (e.action === "remove") {
this.sync();
}
},
schema: {
model: {
id: 'contactid',
fields: {
roletyp_seq: { editable: false, nullable: false, required: true, type: 'string' },
contacttype: { editable: true, nullable: false, required: true, type: 'number' },
roletyp_pk: { editable: false, nullable: false, required: true, type: 'number' },
contactid: { editable: false, nullable: false, required: true, type: 'number' },
vendorid: { editable: false, nullable: false, required: true, type: 'number' },
prevrole_pk: {
editable: false,
nullable: true,
required: true,
type: "number",
}
}
}
},
});
还有我的网格
$("#contactGrid").kendoGrid({
dataSource: contactGridDS,
navigatable: true,
dataBound: mapContactTypes,
editable: true,
//editable: "inline",
//editable: "popup",
edit: function (input) {
if ($('input[name=receivereport]').is(':focus')) {
//detect if email is valid
//get input immediately before this one
if (isEmailValid($('input[name=receivereport]').parent().prev().text()) == false) {
// disable check box
// alert("invalid");
$('input[name=receivereport]').attr('disabled', 'true');
$('input[name=receivereport]').prop('checked', false);
} else {
// enable check box
// alert("valid");
$('input[name=receivereport]').removeAttr('disabled');
$('input[name=receivereport]').prop('checked', false);
}
}
//when user clicks into or out of a field, if the name in the respective row name is blank, alert the user
var grid = this;
var fieldName = grid.columns[input.container.index()].field;
if (isNameInContactGridPopulated(fieldName) == false) {
alert("You can't leave out a contact name in the row you are editing.");
//disable save button
$('.k-grid-save-changes').addClass('k-state-disabled');
$('.k-grid-save-changes').hide();
} else {
//do nothing
$('.k-grid-save-changes').removeClass('k-state-disabled');
$('.k-grid-save-changes').show();
}
if ($('input[name=contactname]').is(":focus") == true) {
//disable save button
if ($('input[name=contactname]').val() == '') {
$('.k-grid-save-changes').addClass('k-state-disabled');
$('.k-grid-save-changes').hide();
}
}
$('input[name=contactname]').keyup(function() {
if ($(this).val() == '') {
$('.k-grid-save-changes').addClass('k-state-disabled');
$('.k-grid-save-changes').hide();
}
});
$('input[name=contactname]').focusout(function () {
if ($(this).val() != '') {
$('.k-grid-save-changes').removeClass('k-state-disabled');
$('.k-grid-save-changes').show();
}
});
},
toolbar: ["save", "cancel"],
pageable: true,
columns: [
{ field: 'roletyp_seq', title: 'RT Seq.', hidden: true, attributes: { 'class': 'contactCell_roletyp_seq' } },
{ field: 'contacttype', title: 'Contact Type', hidden: false, attributes: { 'class': 'contactCell_contacttype' }, editor: loadContactTypeEditor, width: "200px", template: "#=textOverrideContactType(1)#" },
//{ field: 'contacttype', title: 'Contact Type', hidden: false, attributes: { 'class': 'contactCell_contacttype' }, editor: loadContactTypeEditor, width: "200px", template: "#=textOverrideContactType(contacttype)#" },
//{ field: 'contacttype', title: 'Contact Type', hidden: false, attributes: { 'class': 'contactCell_contacttype' }, editor: loadContactTypeEditor, width: "200px" },
{ field: 'prevrole_pk', title: 'prev role ID', hidden: true, attributes: { 'class': 'contactCell_prevrole_pk' } },
{ field: 'roletyp_pk', title: 'Role Type ID', hidden: true, attributes: { 'class': 'contactCell_roletyp_pk' } },
{ field: 'contactid', title: 'Contact ID', hidden: true, attributes: { 'class': 'contactCell_contactid' } },
{ field: 'vendorid', title: 'Vendor ID', hidden: true, attributes: { "class": 'contactCell_vendorid' } },
{ field: 'contactname', title: 'Name', hidden: false, attributes: { "class": 'contactCell_contactname' } },
{ field: 'workphone', title: 'Phone', hidden: false, attributes: { "class": 'contactCell_phone' } },
{ field: 'mobilephone', title: 'Cell', hidden: false, attributes: { "class": 'contactCell_mobilephone' } },
{ field: 'title', title: 'Title', hidden: false, attributes: { "class": 'contactCell_title' } },
{ field: 'email', title: 'Email', hidden: false, attributes: { "class": 'contactCell_email' } },
{ field: 'receivereport', title: 'Receive Reports?', hidden: false, attributes: { "class": 'contactCell_receivereport' }, template: '<input type="checkbox" #= receivereport ? "checked=checked" : "" # value="" disabled="disabled" ></input>' },
{ command: "destroy", title: " ", width: "100px" }
],
sortable: {
mode: 'single',
allowUnsort: false
}
});
那么,我下面有两个函数。 1 是自定义编辑器,另一个是我认为覆盖剑道 ddl 中显示的文本的尝试。
function loadContactTypeEditor(container, options) {
var contactTypeDS = new kendo.data.DataSource({
dataType: "json",
type: "GET",
transport: {
read: "/contacts/GetAllContactTypes/"
}
});
contactTypeDS.read();
$('<input class="contactTypeDropDown" required data-text-field="roletyp_dsc" data-value-field="roletyp_pk" data-bind="value:' + options.field + '"/>').appendTo(container).kendoDropDownList({
dataTextField: "roletyp_dsc",
dataValueField: "roletyp_pk",
autoBind: false,
select: function (e) {
//if (e.sender.text() != '') {
// $('#contactGrid_active_cell').html(e.sender.text());
//}
//if (e.sender.text() != '') {
// setTimeout(function() {
// $('.contactCell_contacttype').text(e.sender.text());
// }, 1000);
//}
//options.model[options.field] = e.sender.text();
},
//dataBound: function(){
// options.model[options.field] = e.sender.text();
//},
dataSource: contactTypeDS
});
}
function textOverrideContactType(roleId) {
//need to find a match on the passed in role/contact type ID and return it's match to "mask/overwrite" the text that's there after a user selects an item in the dropdown
$.ajax({
dataType: 'json',
type: 'GET',
url: "/contacts/GetAllContactTypes/",
contentType: 'application/json; charset=utf-8',
success: function (data) {
$.each(data, function (key, val) {
if (roleId == key) {
return val;
}
});
},
failure: function (error) {
alert("Error loading contact types.");
}
});
}
总而言之:我尝试了一些无济于事的事情。正在发生的事情是,DDL 渲染得很好,即使用户没有离开该 DDL,也会显示正确的“标签”,但是当该控件失去焦点时,它会显示数据值字段。我做不到,我需要能够显示数据文本字段。这就是我编写该 textoverride 方法的原因。但我试图在网格、字段的模板中调用它:但它不起作用。它说它不识别该功能。我不明白;它已明确声明。我应该作为参数传入什么,它与这里的演示不完全一样...有点不同,因为我正在使用另一个远程数据源填充 DDL。
http://demos.telerik.com/kendo-ui/grid/editing-custom
这是另一件事;我需要该数据值字段 ID 持久保存并在它被调用时传递到我的 web api 控制器中。现在,就目前而言,我只能让“文本”显示在控制器中,而不是“ID”。该 ID 在 read 方法中对我不可用。 CRUD 命中的存储过程是完全不同的。我用于插入和更新的存储过程需要获取该联系人类型 ID 作为数字。
提前致谢。我确定我很接近......
【问题讨论】:
-
你能看看这里吗:credera.com/blog/technology-insights/microsoft-solutions/…。您是否使用了相同的方法?
标签: kendo-ui kendo-grid