dynamic

问题 I would like to call an object method dynamically. The variable "MethodWanted" contains the method I want to execute, the variable "ObjectToApply" contains the object. My code so far is: MethodWanted=".children()" print eval(str(ObjectToApply)+MethodWanted) But I get the following error: exception executing script File "<string>", line 1 <pos 164243664 childIndex: 6 lvl: 5>.children() ^ SyntaxError: invalid syntax I also tried without str() wrapping the object, but then I get a "cant use +

问题 After validation fails. The values are flashed to the fields. Now, I am trying to use old input to display all the dynamic fields where the user-added data. Therefore, I am using an array called "name" and loop through them to determine how many names are stored in the array. This determines the number of fields I need to display. But my field is a select field. This already checks within an array which field is select. So, for example, the user selects "Jan" from the field called "name".

问题 I have a long running task with the same name in unrelated classes. I was trying to have this code in common method using dynamic. I am getting following error Microsoft.CSharp.RuntimeBinder.RuntimeBinderException was unhandled by user code Message=Cannot implicitly convert type 'void' to 'object' I tried to isolate the code to the following class Program { static void Main(string[] args) { MainAsync(); Console.ReadKey(); } static async void MainAsync() { var classA = new ClassA(); var classB

问题 I am using System.Linq.Dynamic; to generate dynamic linq query which featch records from db context. I generate where clause in string format for dynamic linq, It works perfectly if input does not have any double quote. However, it throws error once input string contains double quote. I followed Stack Overflow existing solution dynamiclinq-escaping-double-quotes-inside-strings but it does not helped because I wanted to use LIKE operator. I'm using Contains condition in my where clause because

问题 Function Name: expandStack Input: a pointer to a Stack type (Stack*) Output: none Function Operation: The function expands a stack void expandStack(Stack* stack){ //Check the stack and the array are allocated if (stack == NULL ||stack->content == NULL) { return; } //Allocating a new sized array (*2 from the previous) Element* expandedStack = (Element*)malloc(2 * (stack->size) * sizeof(Element)); //Case malloc failed if (expandedStack == NULL) { printf("Error! Malloc has failed in file 'stack

问题 As the title describes, I'm simply trying to create a shiny application that allows the user to generate linear regression plots based on an imported csv file. After importing the file the dropdown for the variables of interest should be dynamically updated. As the code below shows, I'm able to accomplish that with mtcars but I'm not able to do the same with an imported files that would have different dependent and independent variables . Thank you for your help data(mtcars) cols <- sort

问题 Good day! I am trying to find a solution for the following design: Layout Image (Note: LightGrey Lines are just to point out the Layout. They should not be visible later on) An ExpansionPanel shall contain 2 Columns, where Column A expands over the whole height (which Column B needs) but only uses a certain width. In Column A (left side), I want to draw a start and end point, connected with a line, and text next to those points. In Column B (right side), I want to show detailed information.

问题 I want to plot a portion of a graph according to a specific node and ideally a distance from that node or a number of nodes as part of the sub graph. The data.frame that I am graphing is as follows: Column 1 Column 2 Sequence A B 1 A D 2 D B 3 Z E 4 E D 5 this is the code: network <- graph.data.frame(data_to_graph[,c(1,2)]) subnetwork <- induced.subgraph(network, vids = 30, impl = 'copy_and_delete', eids = c(5,6,7,8,9,10,11,12,13,14,15)) plot(subnetwork) I would like, by specifying an element

问题 So I got this program where I got a flowlayoutPanel with some dynamically created panels with the following code: int xlocation = 5; for (int i = 0; i < td2.Rows.Count; i++) { Panel panel = new Panel(); { panel.Name = string.Format("{0}", i); panel.Text = string.Format(i.ToString()); panel.BackColor = Color.White; panel.Location = new System.Drawing.Point(xlocation, 30); panel.Size = new System.Drawing.Size(385, 80); flowLayoutPanel1.Controls.Add(panel); Label label = new Label(); label

问题 I have code below to look for an image of a sku in a specific folder in our server and insert /autosize - but the issue i have is that if I send this spreadsheet to anyone else not on the server, they cannot see images. Can someone help fix this so it inserts the image dynamically? I believe this is what has to be done to place the actual image in the sheet rather than link-back when the sheet is updated/Opened. Or, how can I format this to send out and include images if they are not linked