If multiple InputText's are created via loop, whenever I select one when running my app, it deselects it.

[Stanlyhalo]

Version: 1.83
Branch: docking

My Issue/Question: If multiple InputText's are created via loop, whenever I select one when running my app, it deselects it.

I've been creating a game engine in Vulkan, and the UI with imgui, but as I started to make my entity inspector, it seems when I create input text via looping, whenever I select an input, it deselects it, and if I select the input that was the last one created, it selects all of them and i can edit the text in all of the inputs.

Here's the code of what I have:

for (int i = 0; i < storage.sel_gameEntities.size(); i++) {
	std::string s = std::to_string(storage.sel_gameEntities[i][0]->getId());
	if (ImGui::CollapsingHeader(std::string(std::string(storage.sel_gameEntities[i][0]->name) + "###" + s).c_str(), ImGuiTreeNodeFlags_None))
	{
		ImGui::InputText("Name", storage.sel_gameEntities[i][0]->buf_name, 64);
		storage.sel_gameEntities[i][0]->name = storage.sel_gameEntities[i][0]->buf_name;
	}
}

[Stanlyhalo]

I seem to have fixed it lol, for those of you wondering, I did this to set I guess the "id" of the input:

[ocornut]

Read the FAQ!!

[AidanSun05]

You can skip the string building ID thing by using PushID(i) and PopID() in your loop and also for your CollapsingHeader.

(As a side note you can get rid of ImGuiTreeNodeFlags_None as this is the default for CollapsingHeader.
And you should put storage.sel_gameEntities[i][0] in a variable in your loop, that'll remove a lot of repetition.)

// NOTE: This code is untested but you should get my main idea here.

for (int i = 0; i < storage.sel_gameEntities.size(); i++) {
        auto* current = storage.sel_gameEntities[i][0];
	ImGui::PushID(current->getId()); // This works if getId() returns int/string/char*
	if (ImGui::CollapsingHeader(current->name)) {
                ImGui::PushID(i);
		ImGui::InputText("Name", current->buf_name, 64);
                ImGui::PopID();
		current->name = current->buf_name;
	}
        ImGui::PopID();
}